Associate Professor Christopher Grupen

BSc(Hons) PhD
Senior Lecturer of Animal Reproduction  

C01A - Jl Shute - Camden
The University of Sydney

Telephone +61 2 9036 7740
Fax +61 2 9351 1693

Research interests

Understanding the acquisition of mammalian oocyte quality

In vitro production of embryos from oocytes of juvenile animals The production of offspring of pre-determined gender using sex-sorted semen Seasonal infertility in the pig Marker assisted selection in breeding systems

Teaching and supervision

Animal Reproduction

Reproductive Technology

Selected grants

2014

  • Improving the early selection of replacement gilts: assessment of ovarian hormones from 60 to 100 days of age; Steel A, Grupen C, Athorn R, Johnston R; Australian Pork Limited/Project Support.
  • Somatic cell nuclear transfer in the pig using the handmade cloning method; Grupen C, Cowan P; St Vincents Hospital (Melbourne)/Research Support.

2013

  • Improving the efficiency of frozen semen inseminations in superovulated ewes; Grupen C; Meat and Livestock Australia Ltd/Livestock Production Research and Development Program: Strategic and Applied Research Funding.
  • Travel Award - Chris Grupen to attend the 9th International Conference on Pig Reproduction and visit INRA - Poland/France; Grupen C; Australian Pork Limited/Travel Support.

2012

  • Influence of handling conditions and vitrification protocols on parameters of embryo viability and gene imprinting; Grupen C, Sjoblom C, Bartolac L; Westmead Fertility Centre/Research Support.
  • Investigations into Lipid Metabolism in Porcine Oocytes During Maturation; Grupen C; Dorothy Minchin Bequest/Faculty of Veterinary Science Bequest.

2009

  • Physiological role of progesterone during oocyte maturation; Bertoldo M, Grupen C; Department of Agriculture, Fisheries and Forestry (Federal)/Science and Innovation Award for Young People in Agriculture, Fisheries and Forestry.

2008

  • In vitro production of embryos using sex-sorted ram sperm; Grupen C; The Faculty of Veterinary Science, University of Sydney/Start-up Research Fund.
  • Production of Embryos by In Vitro Fertilisation Using Sex-Sorted Sperm; Grupen C; The Faculty of Veterinary Science, University of Sydney/Postdoctoral fellow and new academic staff travel funds.

2007

  • DISTINCT EFFECTS OF FOLLICULAR FLUID ON CUMULUS CELL APOPTOSIS AND PORCINE OOCYTE DEVELOPMENTAL COMPETENCE; Grupen C; The Faculty of Veterinary Science, University of Sydney/Postdoctoral fellow and new academic staff travel funds.
  • In vitro production of embryos using sex-sorted ram sperm; Grupen C; The Faculty of Veterinary Science, University of Sydney/Start-up Research Fund.
  • Investigations into the acquisition of mammalian oocyte developmental competence; Grupen C; University of Sydney/Newly Appointed Staff.
  • Improving reproductive performance during seasonal infertility: at-risk sows and the role of oocyte quality; Grupen C, Campbell R, Harvey (Holyoake) P; Pork CRC Ltd/Research Support.

2006

  • 2007 annual meeting of the international embryo transfer society (IETS) - Japan 7 January to 9 January; Grupen C; Ian Potter Foundation/Research Grants.

Selected publications

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Journals

  • Grupen, C. (2014). The evolution of porcine embryo invitro production. Theriogenology: an international journal of animal reproduction, 81(1), 24-37. [More Information]
  • Bertoldo, M., Nadal-Desbarats, L., Gerard, N., Dubois, A., Harvey (Holyoake), P., Grupen, C. (2013). Differences in the metabolomic signatures of porcine follicular fluid collection from environments associated with good and poor oocyte quality. Reproduction, 146(3), 221-231. [More Information]
  • Gibb, Z., Morris, L., Maxwell, W., Grupen, C. (2013). Dimethyl formamide improves the postthaw characteristics of sex-sorted and nonsorted stallion sperm. Theriogenology: an international journal of animal reproduction, 79, 1027-1033. [More Information]
  • Druart, X., Rickard, J., Mactier, S., Kohnke, P., Kershaw-Young, C., Bathgate, R., Gibb, Z., Crossett, B., Tsikis, G., Labas, V., Grupen, C., de Graaf, S., et al (2013). Proteomic characterization and cross species comparison of mammalian seminal plasma. Journal of Proteomics, 91, 13-22. [More Information]
  • Druart, X., Rickard, J., Mactier, S., Kohnke, P., Kershaw-Young, C., Bathgate, R., Gibb, Z., Crossett, B., Tsikis, G., Labas, V., Grupen, C., de Graaf, S., et al (2013). Proteomic characterization and cross species comparison of mammalian seminal plasma. Journal of Proteomics, 91, 13-22. [More Information]
  • Gibb, Z., Butler, T., Morris, L., Maxwell, W., Grupen, C. (2013). Quercetin improves the postthaw characteristics of cryopreserved sex-sorted and nonsorted stallion sperm. Theriogenology: an international journal of animal reproduction, 79, 1001-1009. [More Information]
  • Bertoldo, M., Holyoake, P., Evans, G., Grupen, C. (2012). Seasonal variation in the ovarian function of sows. Reproduction, Fertility and Development, 24(6), 822-834. [More Information]
  • Beilby, K., de Graaf, S., Evans, G., Maxwell, W., Wilkening, S., Wrenzycki, C., Grupen, C. (2011). Quantitative mRNA expression in ovine blastocysts produced from X- and Y-chromosome bearing sperm, both in vitro and in vivo. Theriogenology: an international journal of animal reproduction, 76(3), 471-481. [More Information]
  • Bertoldo, M., Holyoake, P., Evans, G., Grupen, C. (2011). Seasonal effects on oocyte developmental competence in sows experiencing pregnancy loss. Animal Reproduction Science, 124(1-2), 104-111. [More Information]
  • Gibb, Z., Morris, L., Maxwell, W., Grupen, C. (2011). Use of defined diluent increases the sex-sorting efficiency of stallion sperm. Theriogenology: an international journal of animal reproduction, 75(4), 610-619. [More Information]
  • Bertoldo, M., Holyoake, P., Evans, G., Grupen, C. (2010). Follicular Progesterone Levels Decrease During the Period of Seasonal Infertility in Sows. Reproduction in Domestic Animals, 46(3), 1-6. [More Information]
  • Bertoldo, M., Holyoake, P., Evans, G., Grupen, C. (2010). Oocyte developmental competence is reduced in sows during the seasonal infertility period. Reproduction, Fertility and Development, 22, 1222-1229.
  • Grupen, C., Armstrong, D. (2010). Relationship between cumulus cell apoptosis, progesterone production and porcine oocyte developmental competence: temporal effects of follicular fliud during IVM. Reproduction, Fertility and Development, 22(doi:10.1071/RD09307), 1100-1109.
  • Beilby, K., de Graaf, S., Grupen, C. (2010). The Effect of Sperm and Cryoprotectant concentration on the Freezing Success of Sex Sorted ram Sperm for In-Vitro Fertilization. Theriogenology: an international journal of animal reproduction, 74(5), 786-794.
  • Bagg, M., Nottle, M., Armstrong, D., Grupen, C. (2009). Effect of follicle size and dibutyryl cAMP on the cAMP content and gap junctional communication of porcine prepubertal cumulusoocyte complexes during IVM. Reproduction, Fertility and Development, 21, 796-804. [More Information]
  • Bertoldo, M., Grupen, C., Thomson, P., Evans, G., Harvey (Holyoake), P. (2009). Identification of sow-specific risk factors for late pregnancy loss during the seasonal infertility period in pigs. Theriogenology: an international journal of animal reproduction, 72(3), 393-400. [More Information]
  • Beilby, K., Grupen, C., Thomson, P., Maxwell, W., Evans, G. (2009). The effect of insemination time and sperm dose on pregnancy rate using sex-sorted ram sperm. Theriogenology: an international journal of animal reproduction, 71(5), 829-835. [More Information]
  • Beebe, L., McIlfatrick, S., Grupen, C., Boquest, A., Harrison, S., Faast, R., Ashman, R., Wengle, J., Hamilton, H., Nottle, M. (2007). A comparison of two in vitro maturation media for use with adult porcine oocytes for adult somatic cell nuclear transfer. Cloning and Stem Cells, 9(4), 564-570.
  • Grupen, C., Schulz, S., Armstrong, D. (2007). Distinct effects of follicular fluid on cumulus cell apoptosis and porcine oocyte developmental competence. Reproduction, Fertility and Development, 19(1), 286-287.
  • Grupen, C., Gilchrist, R., Nayudu, P., Barry, M., Schulz, S., Ritter, L., Armstrong, D. (2007). Effects of ovarian stimulation, with and without human chorionic gonadotrophin, on oocyte meiotic and developmental competence in the marmoset monkey (Callithrix jacchus). Theriogenology: an international journal of animal reproduction, 68(6), 861-872.
  • Bagg, M., Nottle, M., Armstrong, D., Grupen, C. (2007). Relationship between follicle size and oocyte developmental competence in prepubertal and adult pigs. Reproduction, Fertility and Development, 19(7), 797-803.
  • Bagg, M., Nottle, M., Grupen, C., Armstrong, D. (2006). Effect of dibutyryl cAMP on the cAMP content, meiotic progression, and developmental potential of in vitro matured pre-pubertal and adult pig oocytes. Molecular Reproduction and Development, 73(10), 1326-1332. [More Information]
  • Grupen, C., Fung, M., Armstrong, D. (2006). Effects of milrinone and butyrolactone-I on porcine oocyte meiotic progression and developmental competence. Reproduction, Fertility and Development, 18(3), 309-317.
  • Grupen, C., Gilchrist, R., Schulz, S., Ritter, L., Armstrong, D. (2005). Calcium ionophore induction of marmoset oocyte activation. Reproduction, Fertility and Development, 17((Supplement)), 101.
  • Bagg, M., Nottle, M., Grupen, C., Armstrong, D. (2005). Effect of donor age and follicle size on oocyte developmental competence in the pig. Reproduction, Fertility and Development, 17((Supplement)), 102.
  • Ritter, U., Schulz, S., Grupen, C., Armstrong, D., Gilchrist, R. (2005). Growth gifferentiation factor 9 signalling systems regulate marmoset monkey granulosa cell proliferation. Reproduction, Fertility and Development, 17((Supplement)), 100.
  • Harrison, S., Boquest, A., Grupen, C., Faast, R., Guildolin, A., Giannakis, C., Crocker, L., McIlfatrick, S., Ashman, R., Wengle, J., O'Connell, P., d'Apice, A., et al (2004). An Efficient Method for Producing α(1,3)-Galactosyltransferase Gene Knockout Pigs. Cloning and Stem Cells, 6(4), 327-331.
  • Bagg, M., Vassena, R., Papasso-Brambilla, E., Grupen, C., Armstrong, D., Gandolfi, F. (2004). Changes in ovarian, follicular and oocyte morphology immediately after the onset of puberty are not accompanied by an increase in oocyte developmental competence in the pig. Theriogenology: an international journal of animal reproduction, 62(6), 1003-1011.
  • Grupen, C., Scott, S., Gilchrist, R. (2004). Effects of animal pairing on marmoset sperm collected by penile vibratory stimulation. Reproduction, Fertility and Development, 16(9), 263-263.
  • Nottle, M., Boquest, A., Harrison, S., Grupen, C., Faast, R., Ashman, R., McIlfatrick, S. (2004). Transgenic perspectives in livestock science: a review. Australian Journal of Experimental Agriculture ('09 renamed: Animal Production Science), 44(11), 1113-1117.
  • Grupen, C., McIlfatrick, S., Ashman, R., Nottle, M. (2003). Developmental competence of prepubertal and adult porcine oocytes, Theriogenology. Theriogenology: an international journal of animal reproduction, 59(1), 447.
  • Grupen, C., Inumaru, S., McIlfatrick, S., Ashman, R., Nottle, M. (2003). Effect of GM-CSF on the in vitro development of porcine embryos,. Reproduction, Fertility and Development, 15((Supplement)), 46.
  • Brevini, T., Francisci, C., Vassena, R., Bagg, M., Grupen, C., Armstrong, D., Gandolfi, F. (2003). Follicular fluid concentration during pig IVM affects oocyte developmental competence and mitochondria distribution. Theriogenology: an international journal of animal reproduction, 59(1), 440.
  • Bagg, M., Grupen, C., Gandolfi, F., Armstrong, D. (2003). Kinetics of meiotic maturation differ between pre-pubertal and adult porcine oocytes. Reproduction, Fertility and Development, 15((Supplement)), 94.
  • Grupen, C., McIlfatrick, S., Ashman, R., Boquest, A., Armstrong, D., Nottle, M. (2003). Relationship between donor animal age, follicular fluid steroid content and oocyte developmental competence in the pig. Reproduction, Fertility and Development, 15(2), 81-87.
  • Bagg, M., Vassena, R., Papasso-Brambilla, E., Grupen, C., Armstrong, D., Gandolfi, F. (2003). The onset of puberty in pig immediately changes ovarian morphology but not oocyte in vitro developmental competence. Theriogenology: an international journal of animal reproduction, 59(1), 436.
  • Grupen, C., McIlfatrick, S., Ashman, R., Nottle, M. (2002). A comparison of staining methods used to determine numbers of cells in pig blastocysts. Reproduction, Fertility and Development, 14((Supplement)), 14.
  • Grupen, C., Nottle, M., Nagashima, H. (2002). Calcium release at fertilization: Artificially mimicking the oocyte's response to sperm. Journal of Reproduction and Development, 48(4), 313-333.
  • Verma, P., Du, Z., Grupen, C., Crocker, L., McIlfatrick, S., Ashman, R., Lyons, I., Nottle, M. (2002). Development of porcine nuclear transfer embryos following post fusion enucleation. Theriogenology: an international journal of animal reproduction, 57, 454.
  • Grupen, C., Mau, J., McIlfatrick, S., Maddocks, S., Nottle, M. (2002). Effect of 6-dimethylaminopurine on electrically activated in vitro matured porcine oocytes. Molecular Reproduction and Development, 62(3), 387-396. [More Information]
  • Grupen, C., Boquest, A., Harrison, S., McIlfatrick, S., Ashman, R., Nottle, M. (2002). Efficiency of a pig nuclear transfer procedure is increased by repeated fusion treatment. Theriogenology: an international journal of animal reproduction, 57(1), 416.
  • Bagg, M., Grupen, C., Nottle, M., Gandolfi, F., Armstrong, D. (2002). Nuclear maturation of pre-pubertal versus post-pubertal porcine oocytes. Theriogenology: an international journal of animal reproduction, 57(1), 712.
  • Boquest, A., Grupen, C., Harrison, S., McIlfatrick, S., Ashman, R., d’Apice, A., Nottle, M. (2002). Production of Cloned Pigs from Cultured Fetal Fibroblast Cells. Biology Of Reproduction, 66(5), 1283-1287.
  • Grupen, C., McIlfatrick, S., Maddocks, S., Nottle, M. (2002). The effects of 6-dimethylaminopurine, cytochalasin B and cycloheximide on the parthenogenetic development of electrically activated IVM porcine oocytes. Cloning and Stem Cells, 4(3), 300.
  • Nottle, M., d'Apice, A., Cowan, P., Boquest, A., Harrison, S., Grupen, C. (2002). Transgenic perspectives in xenotransplantation, 2001 - Limitations of current technology. Xenotransplantation, 9(5), 305-308.
  • Nottle, M., Haskard, K., Verma, P., Du, Z., Grupen, C., McIlfatrick, S., Ashman, R., Harrison, S., Barlow, R., Wigley, P., Robinson, A., d'Apice, A., et al (2001). Effect of DNA concentration on transgenesis rates in mice and pigs. Transgenic Research, 10(6), 523-531.
  • Mau, J., Grupen, C., Verma, P., Du, Z., McIlfatrick, S., Ashman, R., Nottle, M. (2001). MPF activity of porcine oocytes following electrical activation with and without 6-dimethylaminopurine. Theriogenology: an international journal of animal reproduction, 55, 457.
  • Grupen, C., McIlfatrick, S., Nottle, M. (2001). Parthenogenetic development of IVM porcine oocytes - A comparison of artificial activation treatments. Theriogenology: an international journal of animal reproduction, 55, 452.

Conferences

  • Bertoldo, M., Nadal-Desbarats, L., Gerard, N., Dubois, A., Harvey (Holyoake), P., Grupen, C. (2013). Effects of season and follicle size on the metabolomic profile of porcine follicular fluid. 9th International Conference on Pig Reproduction 2013, Poland.
  • Bartolac, L., Grupen, C., Sjoblom, C. (2013). Maximising the post-thaw survival of vitrified, in vitro produced porcine embryos: A comparison of freezing devices, vitrification solutions and blastocoele presence. The Annual Scientific Meeting of the Endocrine Society of Australia and the Society for Reproductive Biology 2013.
  • Lowe, J., Bathgate, R., Grupen, C. (2013). Stimulating lipid metabolism in porcine embryos: effect of L-carnitine in a sequential media system. The Annual Scientific Meeting of the Endocrine Society of Australia and the Society for Reproductive Biology 2013.
  • Bartolac, L., Grupen, C. (2012). Effect of pH buffer composition on the maintenance of porcine embryo viability during extended out-of-incubator culture. The Annual Scientific Meeting of the Endocrine Society of Australia and the Society for Reproductive Biology 2012, N/A: N/A.
  • de Graaf, S., Grupen, C., Rickard, J., Bathgate, R., Mactier, S., Kohnke, B., Crossett, B., Maxwell, W., Christopherson, R., Druart, X. (2012). Identification of Membrane Glycoproteins of Ejaculated and Epididymal Boar Spermatozoa Using LC-MS/MS. The 2nd World Congress of Reproductive Biology, N/A: N/A.
  • Gibb, Z., Grupen, C., Maxwell, W., Morris, L. (2012). Improvements in the Fertility of Cryopreserved, Sex-Sorted Stallion Sperm After Low-Dose Hysteroscopic Insemination. 38th Annual Meeting of the International Embryo Transfer Society, N/A: N/A.
  • Gibb, Z., Grupen, C., de Graaf, S. (2012). Is Sex-Sorting a Reality for the Horse Industry? The Australian College of Veterinary Scientists Science Week, N/A: N/A.
  • Burns, H., Phillips, P., Hawkes, J., Tang, Y., Grupen, C., Mohler, V., O'Connell, P., Hawthorne, W. (2012). Quantitative Image Analysis of the Distribution of Islets in Pig Pancreata – Westran vs. Outbred Pig. ASM 2012: The Transplantation Society of Australia and New Zealand Annual Scientific Meeting, N/A: N/A.
  • Lowe, J., Bathgate, R., Grupen, C. (2012). Stimulating lipid metabolism during porcine oocyte maturation: Effect of L-carnitine in the absence of pyruvate and lactate,. The Annual Scientific Meeting of the Endocrine Society of Australia and the Society for Reproductive Biology 2012, N/A: N/A.
  • Bertoldo, M., Holyoake, P., Evans, G., Grupen, C. (2011). Cumulus Cell Morphology Before and After In Vitro Maturation as an Indicator of Porcine Oocyte Developmental Competence. Annual Conference of the International Embryo Transfer 2010, Australia: CSIRO Publishing.
  • Newman, R., Grupen, C., Downing, J., Wilkinson, S. (2011). Dietary n-6 PUFA and n-3 PUFA Have a Differential Effect on Gilt Litter Characteristics. Manipulating Pig Production XII, Australia: Australasian Pig Science Association.
  • Harris, T., Grupen, C. (2011). Effect of Embryo Transfer Transport Conditions on the Viability of In Vitro -Produced Porcine Embryos. Australasian Pig Science Association, Werribee: Australian Pig Association.
  • Gibb, Z., Grupen, C., Maxwell, W., Morris, L. (2011). Field Fertility of Sex-Sorted Stallion Sperm After Cryopreservation or Liquid Storage. The 2nd World Congress of Reproductive Biology, N/A: N/A.
  • Grupen, C. (2011). Frontiers of IVF in Livestock Species: Factors Affecting Efficiency. International Meeting for Evolution of Reproductive Biology and Task of Frontiers, N/A: N/A.
  • Tuckett, G., Grupen, C., McKenzie, D., Luxford, B. (2011). Pregnancy Outcomes of Porcine Embryo Transfer are not Affected by Increasing the Volume of Transfer Medium. Australasian Pig Science Association, Werribee: Australian Pig Association.
  • Beilby, K., Wilkening, S., de Graaf, S., Wrenzycki, C., Grupen, C. (2011). Quantification of Developmentally Important Gene Transcripts Expressed in Embryos Produced In Vivo and In Vitro Using Sex-Sorted and Non-Sorted Ram Spermatozoa. Annual Conference of the International Embryo Transfer Society, melbourne: CSIRO Publishing.
  • Bertoldo, M., Harvey (Holyoake), P., Grupen, C. (2011). Wean-to-Service Interval as an Indicator of Pregnancy Loss During the Seasonal Infertility Period in Pigs. Annual Conference of the Society for Reproduction and Fertility 2010, UK: Society for Reproduction and Fertility.
  • Bertoldo, M., Holyoake, P., Grupen, C. (2010). DilutWean-to-Service Interval as an Indicator of Pregnancy Loss During the Seasonal Infertility Period in Pigs. Annual Conference of the Society for Reproduction and Fertility, N/A: N/A.
  • Gibb, Z., Morris, L., Maxwell, W., Grupen, C. (2010). Dimethyl Formamide Improves the DNA Integrity and Motility of Sex-Sorted Cryopreserved Stallion Spermatozoa. 41st Annual Conference of the Society for Reproductive Biology, Australia: CSIRO Publishing.
  • Bertoldo, M., Grupen, C., Thomson, P., Harvey (Holyoake), P. (2010). Improving reproductive performance in the farrowing shed: Identification of sow-specific risk factors for late pregnancy loss during seasonal infertility. Australian Association of Pig Veterinarians Conference AAPV 2009, Australia: Australian Association of Pig Veterinarians.
  • Bertoldo, M., Sellens, T., Grupen, C. (2010). Inhibition of Porcine Oocyte Nuclear Maturation In Vitro Using A Phosphodiesterase Inhibitor and an Adenylate Cyclase Activator. 41st Annual Conference of the Society for Reproductive Biology, Australia: CSIRO Publishing.
  • Beilby, K., Kaurivi, Y., Maxwell, W., Evans, G., de Graaf, S., Grupen, C. (2010). Production of Embryos in Superovulated Ewes Using Frozen-Thawed, Sex-Sorted and Refrozen-Thawed Sperm. 41st Annual Conference of the Society for Reproductive Biology, Australia: CSIRO Publishing.
  • Gibb, Z., Morris, L., Maxwell, W., Grupen, C. (2010). Quercetin improves the DNA integrity of sex-sorted stallion spermatozoa. Society for Reproductive Biology/Australian Endocrine Society, Australia: Australian Society for Reproductive Biology.
  • Bertoldo, M., Holyoake, P., Evans, G., Grupen, C. (2010). Seasonal Effects on Ovarian Dynamics and Oocyte Developmental Competence in Sows Experiencing Early-Pregnancy Loss. 41st Annual Conference of the Society for Reproductive Biology, Australia: CSIRO Publishing.
  • Newman, R., Yeung, K., Grupen, C., Thomson, P., Downing, J., Broek, D., Wilkinson, S. (2009). Dietary n-6 and n-3 Polyunsaturated fatty Acids (PUFA) Have a Differential Effect on Gilt Litter Characteristics. Australasian Pig Science Association, Werribee: Australian Pig Association.
  • Grupen, C., Wilkinson, S., Downing, J., Newman, R. (2009). Effects of Dietary Fatty Acids on the Secretion of Metabolic Hormones and Ovarian Activity in Prepubertal Pigs. Manipulating Pig Production XII, Australia: Australasian Pig Science Association.
  • Grupen, C., Wilkinson, S., Downing, J., Newman, R. (2009). Effects of Dietary Fatty Acids on the Secretion of Metabolic Hormones and Ovarian Properties in Prepubertal Pigs. Australasian Pig Science Association, Werribee: Australian Pig Association.
  • Morris, L., Maxwell, W., Evans, G., Grupen, C. (2009). Hoechst 33342 Staining Conditions Affect the Efficiency of Sex-Sorting Stallion Sperm. 13th Annual Conference of the European Society for Domestic Animal Reproduction (ESDAR), USA: Wiley.
  • Bertoldo, M., Harvey (Holyoake), P., Evans, G., Grupen, C. (2009). Reduced Oocyte Developmental Competence During the Period of Seasonal Infertility in Pigs. 40th Annual Conference of the Society for Reproductive Biology SRB 2009, Australia: CSIRO Publishing.
  • Grupen, C. (2009). Relationship Between Follicle Size and Factors Secreted by Porcine Oocytes and Cumulus Cells During Maturation In Vitro. 13th Annual Conference of the European Society for Domestic Animal Reproduction (ESDAR), USA: Wiley.
  • Bertoldo, M., Holyoake, P., Evans, G., Grupen, C. (2009). Sow Follicular Progesterone Levels Decrease During the Period of Seasonal Infertility. Australasian Pig Science Association, Werribee: Australian Pig Association.
  • Bertoldo, M., Harvey (Holyoake), P., Evans, G., Grupen, C. (2009). Sow follicular progesterone levels decrease during the period of seasonal infertility. 12th Australasian Pig Science Association Conference APSA 2009, Australia: Australasian Pig Science Association.
  • Bertoldo, M., Holyoake, P., Evans, G., Grupen, C. (2009). The Effect of Season on Sow Ovarian Morphology. Australasian Pig Science Association, Werribee: Australian Pig Association.
  • Bertoldo, M., Harvey (Holyoake), P., Evans, G., Grupen, C. (2009). The effect of season on sow ovarian morphology. 12th Australasian Pig Science Association Conference APSA 2009, Australia: Australasian Pig Science Association.
  • Beilby, K., Grupen, C., Maxwell, W., Evans, G. (2008). Difference in blastocyst developmental rates between embryos derived from sex-sorted and non-sorted ram sperm, both in vivo and in vitro. 1st General Gemini Conference 2008, Belgium: European Cooperation in Science and Technology (COST).
  • Gibb, Z., Morris, L., Grupen, C., Evans, G., Maxwell, W. (2008). Effect of protein source in stallion semen diluent on the motility, acrosome integrity and morphology of sperm. 16th International Congress on Animal Reproduction 2008, Germany: Wiley-Blackwell Publishing.
  • Bertoldo, M., Harvey (Holyoake), P., Evans, G., Grupen, C. (2008). Effect of season on sow ovarian morphology. 39th Annual Conference of the Society for Reproductive Biology 2008, Australia: CSIRO Publishing.
  • Beilby, K., Grupen, C., Maxwell, W., Evans, G. (2008). Effective low dose insemination with sex-sorted ram spermatozoa. 16th International Congress on Animal Reproduction 2008, Germany: Wiley-Blackwell Publishing.
  • Beilby, K., Grupen, C., Maxwell, W., Evans, G. (2008). In vivo development of embryos derived from sex-sorted and non-sorted ram sperm. 39th Annual Conference of the Society for Reproductive Biology 2008, Australia: CSIRO Publishing.
  • Grupen, C. (2008). Optimisation of IVF conditions used for sex-sorted, frozen-thawed boar sperm. 16th International Congress on Animal Reproduction 2008, Germany: Wiley-Blackwell Publishing.
  • Beilby, K., Grupen, C., Maxwell, W., Evans, G. (2008). Post-thaw survival of sex-sorted ram spermatozoa frozen at varying densities and cyrodiluent concentrations. 6th Biannual Meeting of the Association for Applied Animal Andrology AAAA 2008. Association for Applied Animal Andrology.
  • Bertoldo, M., Grupen, C., Thomson, P., Evans, G., Harvey (Holyoake), P. (2008). Sow-specific risk factors associated with late pregnancy loss during seasonal infertility in pigs. 16th International Congress on Animal Reproduction 2008, Germany: Wiley-Blackwell Publishing.
  • Gibb, Z., Grupen, C., Morris, L., Evans, G., Maxwell, W. (2008). Substitution of skim milk with bovine serum albumin in a stallion semen diluent. 39th Annual Conference of the Society for Reproductive Biology 2008, Australia: CSIRO Publishing.
  • Grupen, C., Bagg, M. (2007). Acquisition of oocyte developmental competence in juvenile donors. 2007 Tsukuba Meeting for Animal Biotechnology (2007 TMAB).
  • Beilby, K., Grupen, C., Maxwell, W., Evans, G. (2007). Enhanced pregnancy rates following low dose insemination with sex-sorted ram sperm. 2007 SRB Annual Scientific Conference, Australia: Australian Society for Reproductive Biology.
  • Grupen, C., Dunkley, E., Maxwell, W., Evans, G. (2007). Production of monozygotic twin lambs from sex-sorted sperm by embryo bisection. 2007 SRB Annual Scientific Conference, Australia: Australian Society for Reproductive Biology.
  • Grupen, C., Gilchrist, R., Ritter, U., Schulz, S., Nayudu, P., Barry, M., Armstrong, D. (2006). An effective superovulation protocol for the marmoset monkey (Callithrix Jacchus). 2006 SRB Annual Scientific Conference.
  • Bertoldo, M., Grupen, C., Thomson, P., Evans, G., Harvey (Holyoake), P. (2006). Identification of sow-specific risk factors for late pregnancy loss during seasonal infertility in pigs. 19th International Pig Veterinary Society Congress IPVS 2006, Denmark: International Pig Veterinary Society.
  • Beebe, L., Faast, R., Boquest, A., Grupen, C., Harrison, S., McIlfatrick, S., Hamilton, H., Wengle, J., Ashman, R., Nottle, M. (2005). A relatively efficient method for adult somatic cell nuclear transfer in pigs. VIIth International Conference on Pig Reproduction.
  • Bagg, M., Nottle, M., Armstrong, D., Grupen, C. (2005). Differences in pre-pubertal and adult oocyte developmental competence is correlated with oocyte cAMP content in the pig. The Society for the Study of Reproduction 38th Annual Meeting (SSR 2005), Kansas, USA: Allen Press Inc.
  • Mitchell, M., Schulz, S., Armstrong, D., Grupen, C. (2005). Dihydrotestosterone influences nuclear maturation of pig oocytes from different sized follicles. VIIth International Conference on Pig Reproduction.
  • Fung, M., Grupen, C., Armstrong, D. (2005). Effects of Phosphodiesterase Type-3 And Maturation Promoting Factor Inhibitors on Porcine Oocyte Maturation. VIIth International Conference on Pig Reproduction.
  • Grupen, C., Scott, S., Armstrong, D. (2004). Temporal effects of follicular fluid on porcine oocyte maturation and cumulus cell function in vitro. 15th International Congress of Animal Reproduction.
  • Nottle, M., Boquest, A., Harrison, S., Grupen, C., Tolstoshev, P., Cowan, P., D'pice, A. (2001). Xenotransplantation: A possible solution to the donor organ shortage? Joint ANZCCART/NAEAC Conference.

2014

  • Grupen, C. (2014). The evolution of porcine embryo invitro production. Theriogenology: an international journal of animal reproduction, 81(1), 24-37. [More Information]

2013

  • Bertoldo, M., Nadal-Desbarats, L., Gerard, N., Dubois, A., Harvey (Holyoake), P., Grupen, C. (2013). Differences in the metabolomic signatures of porcine follicular fluid collection from environments associated with good and poor oocyte quality. Reproduction, 146(3), 221-231. [More Information]
  • Gibb, Z., Morris, L., Maxwell, W., Grupen, C. (2013). Dimethyl formamide improves the postthaw characteristics of sex-sorted and nonsorted stallion sperm. Theriogenology: an international journal of animal reproduction, 79, 1027-1033. [More Information]
  • Bertoldo, M., Nadal-Desbarats, L., Gerard, N., Dubois, A., Harvey (Holyoake), P., Grupen, C. (2013). Effects of season and follicle size on the metabolomic profile of porcine follicular fluid. 9th International Conference on Pig Reproduction 2013, Poland.
  • Bartolac, L., Grupen, C., Sjoblom, C. (2013). Maximising the post-thaw survival of vitrified, in vitro produced porcine embryos: A comparison of freezing devices, vitrification solutions and blastocoele presence. The Annual Scientific Meeting of the Endocrine Society of Australia and the Society for Reproductive Biology 2013.
  • Druart, X., Rickard, J., Mactier, S., Kohnke, P., Kershaw-Young, C., Bathgate, R., Gibb, Z., Crossett, B., Tsikis, G., Labas, V., Grupen, C., de Graaf, S., et al (2013). Proteomic characterization and cross species comparison of mammalian seminal plasma. Journal of Proteomics, 91, 13-22. [More Information]
  • Druart, X., Rickard, J., Mactier, S., Kohnke, P., Kershaw-Young, C., Bathgate, R., Gibb, Z., Crossett, B., Tsikis, G., Labas, V., Grupen, C., de Graaf, S., et al (2013). Proteomic characterization and cross species comparison of mammalian seminal plasma. Journal of Proteomics, 91, 13-22. [More Information]
  • Gibb, Z., Butler, T., Morris, L., Maxwell, W., Grupen, C. (2013). Quercetin improves the postthaw characteristics of cryopreserved sex-sorted and nonsorted stallion sperm. Theriogenology: an international journal of animal reproduction, 79, 1001-1009. [More Information]
  • Lowe, J., Bathgate, R., Grupen, C. (2013). Stimulating lipid metabolism in porcine embryos: effect of L-carnitine in a sequential media system. The Annual Scientific Meeting of the Endocrine Society of Australia and the Society for Reproductive Biology 2013.

2012

  • Bartolac, L., Grupen, C. (2012). Effect of pH buffer composition on the maintenance of porcine embryo viability during extended out-of-incubator culture. The Annual Scientific Meeting of the Endocrine Society of Australia and the Society for Reproductive Biology 2012, N/A: N/A.
  • de Graaf, S., Grupen, C., Rickard, J., Bathgate, R., Mactier, S., Kohnke, B., Crossett, B., Maxwell, W., Christopherson, R., Druart, X. (2012). Identification of Membrane Glycoproteins of Ejaculated and Epididymal Boar Spermatozoa Using LC-MS/MS. The 2nd World Congress of Reproductive Biology, N/A: N/A.
  • Gibb, Z., Grupen, C., Maxwell, W., Morris, L. (2012). Improvements in the Fertility of Cryopreserved, Sex-Sorted Stallion Sperm After Low-Dose Hysteroscopic Insemination. 38th Annual Meeting of the International Embryo Transfer Society, N/A: N/A.
  • Gibb, Z., Grupen, C., de Graaf, S. (2012). Is Sex-Sorting a Reality for the Horse Industry? The Australian College of Veterinary Scientists Science Week, N/A: N/A.
  • Burns, H., Phillips, P., Hawkes, J., Tang, Y., Grupen, C., Mohler, V., O'Connell, P., Hawthorne, W. (2012). Quantitative Image Analysis of the Distribution of Islets in Pig Pancreata – Westran vs. Outbred Pig. ASM 2012: The Transplantation Society of Australia and New Zealand Annual Scientific Meeting, N/A: N/A.
  • Bertoldo, M., Holyoake, P., Evans, G., Grupen, C. (2012). Seasonal variation in the ovarian function of sows. Reproduction, Fertility and Development, 24(6), 822-834. [More Information]
  • Lowe, J., Bathgate, R., Grupen, C. (2012). Stimulating lipid metabolism during porcine oocyte maturation: Effect of L-carnitine in the absence of pyruvate and lactate,. The Annual Scientific Meeting of the Endocrine Society of Australia and the Society for Reproductive Biology 2012, N/A: N/A.

2011

  • Bertoldo, M., Holyoake, P., Evans, G., Grupen, C. (2011). Cumulus Cell Morphology Before and After In Vitro Maturation as an Indicator of Porcine Oocyte Developmental Competence. Annual Conference of the International Embryo Transfer 2010, Australia: CSIRO Publishing.
  • Newman, R., Grupen, C., Downing, J., Wilkinson, S. (2011). Dietary n-6 PUFA and n-3 PUFA Have a Differential Effect on Gilt Litter Characteristics. Manipulating Pig Production XII, Australia: Australasian Pig Science Association.
  • Harris, T., Grupen, C. (2011). Effect of Embryo Transfer Transport Conditions on the Viability of In Vitro -Produced Porcine Embryos. Australasian Pig Science Association, Werribee: Australian Pig Association.
  • Gibb, Z., Grupen, C., Maxwell, W., Morris, L. (2011). Field Fertility of Sex-Sorted Stallion Sperm After Cryopreservation or Liquid Storage. The 2nd World Congress of Reproductive Biology, N/A: N/A.
  • Grupen, C. (2011). Frontiers of IVF in Livestock Species: Factors Affecting Efficiency. International Meeting for Evolution of Reproductive Biology and Task of Frontiers, N/A: N/A.
  • Tuckett, G., Grupen, C., McKenzie, D., Luxford, B. (2011). Pregnancy Outcomes of Porcine Embryo Transfer are not Affected by Increasing the Volume of Transfer Medium. Australasian Pig Science Association, Werribee: Australian Pig Association.
  • Beilby, K., Wilkening, S., de Graaf, S., Wrenzycki, C., Grupen, C. (2011). Quantification of Developmentally Important Gene Transcripts Expressed in Embryos Produced In Vivo and In Vitro Using Sex-Sorted and Non-Sorted Ram Spermatozoa. Annual Conference of the International Embryo Transfer Society, melbourne: CSIRO Publishing.
  • Beilby, K., de Graaf, S., Evans, G., Maxwell, W., Wilkening, S., Wrenzycki, C., Grupen, C. (2011). Quantitative mRNA expression in ovine blastocysts produced from X- and Y-chromosome bearing sperm, both in vitro and in vivo. Theriogenology: an international journal of animal reproduction, 76(3), 471-481. [More Information]
  • Bertoldo, M., Holyoake, P., Evans, G., Grupen, C. (2011). Seasonal effects on oocyte developmental competence in sows experiencing pregnancy loss. Animal Reproduction Science, 124(1-2), 104-111. [More Information]
  • Gibb, Z., Morris, L., Maxwell, W., Grupen, C. (2011). Use of defined diluent increases the sex-sorting efficiency of stallion sperm. Theriogenology: an international journal of animal reproduction, 75(4), 610-619. [More Information]
  • Bertoldo, M., Harvey (Holyoake), P., Grupen, C. (2011). Wean-to-Service Interval as an Indicator of Pregnancy Loss During the Seasonal Infertility Period in Pigs. Annual Conference of the Society for Reproduction and Fertility 2010, UK: Society for Reproduction and Fertility.

2010

  • Bertoldo, M., Holyoake, P., Grupen, C. (2010). DilutWean-to-Service Interval as an Indicator of Pregnancy Loss During the Seasonal Infertility Period in Pigs. Annual Conference of the Society for Reproduction and Fertility, N/A: N/A.
  • Gibb, Z., Morris, L., Maxwell, W., Grupen, C. (2010). Dimethyl Formamide Improves the DNA Integrity and Motility of Sex-Sorted Cryopreserved Stallion Spermatozoa. 41st Annual Conference of the Society for Reproductive Biology, Australia: CSIRO Publishing.
  • Bertoldo, M., Holyoake, P., Evans, G., Grupen, C. (2010). Follicular Progesterone Levels Decrease During the Period of Seasonal Infertility in Sows. Reproduction in Domestic Animals, 46(3), 1-6. [More Information]
  • Bertoldo, M., Grupen, C., Thomson, P., Harvey (Holyoake), P. (2010). Improving reproductive performance in the farrowing shed: Identification of sow-specific risk factors for late pregnancy loss during seasonal infertility. Australian Association of Pig Veterinarians Conference AAPV 2009, Australia: Australian Association of Pig Veterinarians.
  • Bertoldo, M., Sellens, T., Grupen, C. (2010). Inhibition of Porcine Oocyte Nuclear Maturation In Vitro Using A Phosphodiesterase Inhibitor and an Adenylate Cyclase Activator. 41st Annual Conference of the Society for Reproductive Biology, Australia: CSIRO Publishing.
  • Bertoldo, M., Holyoake, P., Evans, G., Grupen, C. (2010). Oocyte developmental competence is reduced in sows during the seasonal infertility period. Reproduction, Fertility and Development, 22, 1222-1229.
  • Beilby, K., Kaurivi, Y., Maxwell, W., Evans, G., de Graaf, S., Grupen, C. (2010). Production of Embryos in Superovulated Ewes Using Frozen-Thawed, Sex-Sorted and Refrozen-Thawed Sperm. 41st Annual Conference of the Society for Reproductive Biology, Australia: CSIRO Publishing.
  • Gibb, Z., Morris, L., Maxwell, W., Grupen, C. (2010). Quercetin improves the DNA integrity of sex-sorted stallion spermatozoa. Society for Reproductive Biology/Australian Endocrine Society, Australia: Australian Society for Reproductive Biology.
  • Grupen, C., Armstrong, D. (2010). Relationship between cumulus cell apoptosis, progesterone production and porcine oocyte developmental competence: temporal effects of follicular fliud during IVM. Reproduction, Fertility and Development, 22(doi:10.1071/RD09307), 1100-1109.
  • Bertoldo, M., Holyoake, P., Evans, G., Grupen, C. (2010). Seasonal Effects on Ovarian Dynamics and Oocyte Developmental Competence in Sows Experiencing Early-Pregnancy Loss. 41st Annual Conference of the Society for Reproductive Biology, Australia: CSIRO Publishing.
  • Beilby, K., de Graaf, S., Grupen, C. (2010). The Effect of Sperm and Cryoprotectant concentration on the Freezing Success of Sex Sorted ram Sperm for In-Vitro Fertilization. Theriogenology: an international journal of animal reproduction, 74(5), 786-794.

2009

  • Newman, R., Yeung, K., Grupen, C., Thomson, P., Downing, J., Broek, D., Wilkinson, S. (2009). Dietary n-6 and n-3 Polyunsaturated fatty Acids (PUFA) Have a Differential Effect on Gilt Litter Characteristics. Australasian Pig Science Association, Werribee: Australian Pig Association.
  • Bagg, M., Nottle, M., Armstrong, D., Grupen, C. (2009). Effect of follicle size and dibutyryl cAMP on the cAMP content and gap junctional communication of porcine prepubertal cumulusoocyte complexes during IVM. Reproduction, Fertility and Development, 21, 796-804. [More Information]
  • Grupen, C., Wilkinson, S., Downing, J., Newman, R. (2009). Effects of Dietary Fatty Acids on the Secretion of Metabolic Hormones and Ovarian Activity in Prepubertal Pigs. Manipulating Pig Production XII, Australia: Australasian Pig Science Association.
  • Grupen, C., Wilkinson, S., Downing, J., Newman, R. (2009). Effects of Dietary Fatty Acids on the Secretion of Metabolic Hormones and Ovarian Properties in Prepubertal Pigs. Australasian Pig Science Association, Werribee: Australian Pig Association.
  • Morris, L., Maxwell, W., Evans, G., Grupen, C. (2009). Hoechst 33342 Staining Conditions Affect the Efficiency of Sex-Sorting Stallion Sperm. 13th Annual Conference of the European Society for Domestic Animal Reproduction (ESDAR), USA: Wiley.
  • Bertoldo, M., Grupen, C., Thomson, P., Evans, G., Harvey (Holyoake), P. (2009). Identification of sow-specific risk factors for late pregnancy loss during the seasonal infertility period in pigs. Theriogenology: an international journal of animal reproduction, 72(3), 393-400. [More Information]
  • Bertoldo, M., Harvey (Holyoake), P., Evans, G., Grupen, C. (2009). Reduced Oocyte Developmental Competence During the Period of Seasonal Infertility in Pigs. 40th Annual Conference of the Society for Reproductive Biology SRB 2009, Australia: CSIRO Publishing.
  • Grupen, C. (2009). Relationship Between Follicle Size and Factors Secreted by Porcine Oocytes and Cumulus Cells During Maturation In Vitro. 13th Annual Conference of the European Society for Domestic Animal Reproduction (ESDAR), USA: Wiley.
  • Bertoldo, M., Holyoake, P., Evans, G., Grupen, C. (2009). Sow Follicular Progesterone Levels Decrease During the Period of Seasonal Infertility. Australasian Pig Science Association, Werribee: Australian Pig Association.
  • Bertoldo, M., Harvey (Holyoake), P., Evans, G., Grupen, C. (2009). Sow follicular progesterone levels decrease during the period of seasonal infertility. 12th Australasian Pig Science Association Conference APSA 2009, Australia: Australasian Pig Science Association.
  • Beilby, K., Grupen, C., Thomson, P., Maxwell, W., Evans, G. (2009). The effect of insemination time and sperm dose on pregnancy rate using sex-sorted ram sperm. Theriogenology: an international journal of animal reproduction, 71(5), 829-835. [More Information]
  • Bertoldo, M., Holyoake, P., Evans, G., Grupen, C. (2009). The Effect of Season on Sow Ovarian Morphology. Australasian Pig Science Association, Werribee: Australian Pig Association.
  • Bertoldo, M., Harvey (Holyoake), P., Evans, G., Grupen, C. (2009). The effect of season on sow ovarian morphology. 12th Australasian Pig Science Association Conference APSA 2009, Australia: Australasian Pig Science Association.

2008

  • Beilby, K., Grupen, C., Maxwell, W., Evans, G. (2008). Difference in blastocyst developmental rates between embryos derived from sex-sorted and non-sorted ram sperm, both in vivo and in vitro. 1st General Gemini Conference 2008, Belgium: European Cooperation in Science and Technology (COST).
  • Gibb, Z., Morris, L., Grupen, C., Evans, G., Maxwell, W. (2008). Effect of protein source in stallion semen diluent on the motility, acrosome integrity and morphology of sperm. 16th International Congress on Animal Reproduction 2008, Germany: Wiley-Blackwell Publishing.
  • Bertoldo, M., Harvey (Holyoake), P., Evans, G., Grupen, C. (2008). Effect of season on sow ovarian morphology. 39th Annual Conference of the Society for Reproductive Biology 2008, Australia: CSIRO Publishing.
  • Beilby, K., Grupen, C., Maxwell, W., Evans, G. (2008). Effective low dose insemination with sex-sorted ram spermatozoa. 16th International Congress on Animal Reproduction 2008, Germany: Wiley-Blackwell Publishing.
  • Beilby, K., Grupen, C., Maxwell, W., Evans, G. (2008). In vivo development of embryos derived from sex-sorted and non-sorted ram sperm. 39th Annual Conference of the Society for Reproductive Biology 2008, Australia: CSIRO Publishing.
  • Grupen, C. (2008). Optimisation of IVF conditions used for sex-sorted, frozen-thawed boar sperm. 16th International Congress on Animal Reproduction 2008, Germany: Wiley-Blackwell Publishing.
  • Beilby, K., Grupen, C., Maxwell, W., Evans, G. (2008). Post-thaw survival of sex-sorted ram spermatozoa frozen at varying densities and cyrodiluent concentrations. 6th Biannual Meeting of the Association for Applied Animal Andrology AAAA 2008. Association for Applied Animal Andrology.
  • Bertoldo, M., Grupen, C., Thomson, P., Evans, G., Harvey (Holyoake), P. (2008). Sow-specific risk factors associated with late pregnancy loss during seasonal infertility in pigs. 16th International Congress on Animal Reproduction 2008, Germany: Wiley-Blackwell Publishing.
  • Gibb, Z., Grupen, C., Morris, L., Evans, G., Maxwell, W. (2008). Substitution of skim milk with bovine serum albumin in a stallion semen diluent. 39th Annual Conference of the Society for Reproductive Biology 2008, Australia: CSIRO Publishing.

2007

  • Beebe, L., McIlfatrick, S., Grupen, C., Boquest, A., Harrison, S., Faast, R., Ashman, R., Wengle, J., Hamilton, H., Nottle, M. (2007). A comparison of two in vitro maturation media for use with adult porcine oocytes for adult somatic cell nuclear transfer. Cloning and Stem Cells, 9(4), 564-570.
  • Grupen, C., Bagg, M. (2007). Acquisition of oocyte developmental competence in juvenile donors. 2007 Tsukuba Meeting for Animal Biotechnology (2007 TMAB).
  • Grupen, C., Schulz, S., Armstrong, D. (2007). Distinct effects of follicular fluid on cumulus cell apoptosis and porcine oocyte developmental competence. Reproduction, Fertility and Development, 19(1), 286-287.
  • Grupen, C., Gilchrist, R., Nayudu, P., Barry, M., Schulz, S., Ritter, L., Armstrong, D. (2007). Effects of ovarian stimulation, with and without human chorionic gonadotrophin, on oocyte meiotic and developmental competence in the marmoset monkey (Callithrix jacchus). Theriogenology: an international journal of animal reproduction, 68(6), 861-872.
  • Beilby, K., Grupen, C., Maxwell, W., Evans, G. (2007). Enhanced pregnancy rates following low dose insemination with sex-sorted ram sperm. 2007 SRB Annual Scientific Conference, Australia: Australian Society for Reproductive Biology.
  • Grupen, C., Dunkley, E., Maxwell, W., Evans, G. (2007). Production of monozygotic twin lambs from sex-sorted sperm by embryo bisection. 2007 SRB Annual Scientific Conference, Australia: Australian Society for Reproductive Biology.
  • Bagg, M., Nottle, M., Armstrong, D., Grupen, C. (2007). Relationship between follicle size and oocyte developmental competence in prepubertal and adult pigs. Reproduction, Fertility and Development, 19(7), 797-803.

2006

  • Grupen, C., Gilchrist, R., Ritter, U., Schulz, S., Nayudu, P., Barry, M., Armstrong, D. (2006). An effective superovulation protocol for the marmoset monkey (Callithrix Jacchus). 2006 SRB Annual Scientific Conference.
  • Bagg, M., Nottle, M., Grupen, C., Armstrong, D. (2006). Effect of dibutyryl cAMP on the cAMP content, meiotic progression, and developmental potential of in vitro matured pre-pubertal and adult pig oocytes. Molecular Reproduction and Development, 73(10), 1326-1332. [More Information]
  • Grupen, C., Fung, M., Armstrong, D. (2006). Effects of milrinone and butyrolactone-I on porcine oocyte meiotic progression and developmental competence. Reproduction, Fertility and Development, 18(3), 309-317.
  • Bertoldo, M., Grupen, C., Thomson, P., Evans, G., Harvey (Holyoake), P. (2006). Identification of sow-specific risk factors for late pregnancy loss during seasonal infertility in pigs. 19th International Pig Veterinary Society Congress IPVS 2006, Denmark: International Pig Veterinary Society.

2005

  • Beebe, L., Faast, R., Boquest, A., Grupen, C., Harrison, S., McIlfatrick, S., Hamilton, H., Wengle, J., Ashman, R., Nottle, M. (2005). A relatively efficient method for adult somatic cell nuclear transfer in pigs. VIIth International Conference on Pig Reproduction.
  • Grupen, C., Gilchrist, R., Schulz, S., Ritter, L., Armstrong, D. (2005). Calcium ionophore induction of marmoset oocyte activation. Reproduction, Fertility and Development, 17((Supplement)), 101.
  • Bagg, M., Nottle, M., Armstrong, D., Grupen, C. (2005). Differences in pre-pubertal and adult oocyte developmental competence is correlated with oocyte cAMP content in the pig. The Society for the Study of Reproduction 38th Annual Meeting (SSR 2005), Kansas, USA: Allen Press Inc.
  • Mitchell, M., Schulz, S., Armstrong, D., Grupen, C. (2005). Dihydrotestosterone influences nuclear maturation of pig oocytes from different sized follicles. VIIth International Conference on Pig Reproduction.
  • Bagg, M., Nottle, M., Grupen, C., Armstrong, D. (2005). Effect of donor age and follicle size on oocyte developmental competence in the pig. Reproduction, Fertility and Development, 17((Supplement)), 102.
  • Fung, M., Grupen, C., Armstrong, D. (2005). Effects of Phosphodiesterase Type-3 And Maturation Promoting Factor Inhibitors on Porcine Oocyte Maturation. VIIth International Conference on Pig Reproduction.
  • Ritter, U., Schulz, S., Grupen, C., Armstrong, D., Gilchrist, R. (2005). Growth gifferentiation factor 9 signalling systems regulate marmoset monkey granulosa cell proliferation. Reproduction, Fertility and Development, 17((Supplement)), 100.

2004

  • Harrison, S., Boquest, A., Grupen, C., Faast, R., Guildolin, A., Giannakis, C., Crocker, L., McIlfatrick, S., Ashman, R., Wengle, J., O'Connell, P., d'Apice, A., et al (2004). An Efficient Method for Producing α(1,3)-Galactosyltransferase Gene Knockout Pigs. Cloning and Stem Cells, 6(4), 327-331.
  • Bagg, M., Vassena, R., Papasso-Brambilla, E., Grupen, C., Armstrong, D., Gandolfi, F. (2004). Changes in ovarian, follicular and oocyte morphology immediately after the onset of puberty are not accompanied by an increase in oocyte developmental competence in the pig. Theriogenology: an international journal of animal reproduction, 62(6), 1003-1011.
  • Grupen, C., Scott, S., Gilchrist, R. (2004). Effects of animal pairing on marmoset sperm collected by penile vibratory stimulation. Reproduction, Fertility and Development, 16(9), 263-263.
  • Grupen, C., Scott, S., Armstrong, D. (2004). Temporal effects of follicular fluid on porcine oocyte maturation and cumulus cell function in vitro. 15th International Congress of Animal Reproduction.
  • Nottle, M., Boquest, A., Harrison, S., Grupen, C., Faast, R., Ashman, R., McIlfatrick, S. (2004). Transgenic perspectives in livestock science: a review. Australian Journal of Experimental Agriculture ('09 renamed: Animal Production Science), 44(11), 1113-1117.

2003

  • Grupen, C., McIlfatrick, S., Ashman, R., Nottle, M. (2003). Developmental competence of prepubertal and adult porcine oocytes, Theriogenology. Theriogenology: an international journal of animal reproduction, 59(1), 447.
  • Grupen, C., Inumaru, S., McIlfatrick, S., Ashman, R., Nottle, M. (2003). Effect of GM-CSF on the in vitro development of porcine embryos,. Reproduction, Fertility and Development, 15((Supplement)), 46.
  • Brevini, T., Francisci, C., Vassena, R., Bagg, M., Grupen, C., Armstrong, D., Gandolfi, F. (2003). Follicular fluid concentration during pig IVM affects oocyte developmental competence and mitochondria distribution. Theriogenology: an international journal of animal reproduction, 59(1), 440.
  • Bagg, M., Grupen, C., Gandolfi, F., Armstrong, D. (2003). Kinetics of meiotic maturation differ between pre-pubertal and adult porcine oocytes. Reproduction, Fertility and Development, 15((Supplement)), 94.
  • Grupen, C., McIlfatrick, S., Ashman, R., Boquest, A., Armstrong, D., Nottle, M. (2003). Relationship between donor animal age, follicular fluid steroid content and oocyte developmental competence in the pig. Reproduction, Fertility and Development, 15(2), 81-87.
  • Bagg, M., Vassena, R., Papasso-Brambilla, E., Grupen, C., Armstrong, D., Gandolfi, F. (2003). The onset of puberty in pig immediately changes ovarian morphology but not oocyte in vitro developmental competence. Theriogenology: an international journal of animal reproduction, 59(1), 436.

2002

  • Grupen, C., McIlfatrick, S., Ashman, R., Nottle, M. (2002). A comparison of staining methods used to determine numbers of cells in pig blastocysts. Reproduction, Fertility and Development, 14((Supplement)), 14.
  • Grupen, C., Nottle, M., Nagashima, H. (2002). Calcium release at fertilization: Artificially mimicking the oocyte's response to sperm. Journal of Reproduction and Development, 48(4), 313-333.
  • Verma, P., Du, Z., Grupen, C., Crocker, L., McIlfatrick, S., Ashman, R., Lyons, I., Nottle, M. (2002). Development of porcine nuclear transfer embryos following post fusion enucleation. Theriogenology: an international journal of animal reproduction, 57, 454.
  • Grupen, C., Mau, J., McIlfatrick, S., Maddocks, S., Nottle, M. (2002). Effect of 6-dimethylaminopurine on electrically activated in vitro matured porcine oocytes. Molecular Reproduction and Development, 62(3), 387-396. [More Information]
  • Grupen, C., Boquest, A., Harrison, S., McIlfatrick, S., Ashman, R., Nottle, M. (2002). Efficiency of a pig nuclear transfer procedure is increased by repeated fusion treatment. Theriogenology: an international journal of animal reproduction, 57(1), 416.
  • Bagg, M., Grupen, C., Nottle, M., Gandolfi, F., Armstrong, D. (2002). Nuclear maturation of pre-pubertal versus post-pubertal porcine oocytes. Theriogenology: an international journal of animal reproduction, 57(1), 712.
  • Boquest, A., Grupen, C., Harrison, S., McIlfatrick, S., Ashman, R., d’Apice, A., Nottle, M. (2002). Production of Cloned Pigs from Cultured Fetal Fibroblast Cells. Biology Of Reproduction, 66(5), 1283-1287.
  • Grupen, C., McIlfatrick, S., Maddocks, S., Nottle, M. (2002). The effects of 6-dimethylaminopurine, cytochalasin B and cycloheximide on the parthenogenetic development of electrically activated IVM porcine oocytes. Cloning and Stem Cells, 4(3), 300.
  • Nottle, M., d'Apice, A., Cowan, P., Boquest, A., Harrison, S., Grupen, C. (2002). Transgenic perspectives in xenotransplantation, 2001 - Limitations of current technology. Xenotransplantation, 9(5), 305-308.

2001

  • Nottle, M., Haskard, K., Verma, P., Du, Z., Grupen, C., McIlfatrick, S., Ashman, R., Harrison, S., Barlow, R., Wigley, P., Robinson, A., d'Apice, A., et al (2001). Effect of DNA concentration on transgenesis rates in mice and pigs. Transgenic Research, 10(6), 523-531.
  • Mau, J., Grupen, C., Verma, P., Du, Z., McIlfatrick, S., Ashman, R., Nottle, M. (2001). MPF activity of porcine oocytes following electrical activation with and without 6-dimethylaminopurine. Theriogenology: an international journal of animal reproduction, 55, 457.
  • Grupen, C., McIlfatrick, S., Nottle, M. (2001). Parthenogenetic development of IVM porcine oocytes - A comparison of artificial activation treatments. Theriogenology: an international journal of animal reproduction, 55, 452.
  • Nottle, M., Boquest, A., Harrison, S., Grupen, C., Tolstoshev, P., Cowan, P., D'pice, A. (2001). Xenotransplantation: A possible solution to the donor organ shortage? Joint ANZCCART/NAEAC Conference.

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