Associate Professor Alex Vieira Chaves

BSc(Eng), MSc (Plant Science), PhD (Animal Science)
Lecturer and Researcher in Animal Nutrition  

B19 - R.M.C. Gunn Building
The University of Sydney

Telephone +61 2 9036 9312
Fax +61 2 9351 3957

Research interests

Ruminant nutrition

Sustainable ruminant production systems Environmental friendly farm systems (mitigation of green house gases; management approaches to utilize the existing feed resources more efficiently; etc.)

Teaching and supervision

Undergraduate teaching:

Animal nutrition year III AVBS students Beef production year II AVBS and BVSc students Ruminant nutrition year IV BVSc students Feed technology year IV AVBS students Post-graduate teaching.

Selected grants

2010

  • An evaluation of by-products from bio-fuels production as ruminant feeds on methane emissions; Chaves A; The Faculty of Veterinary Science, University of Sydney/Start-up Research Fund.
  • Assessment of Biodiesel By-products Srising from Oil Seeds; Chaves A; DVC International/IPDF Grant.

2009

  • The XIth International Symposium on Ruminant Physiology (ISRP) was in Clermont Ferrand (France) organised by INRA.; Chaves A; The Faculty of Veterinary Science, University of Sydney/Postdoctoral fellow and new academic staff travel funds.

Selected publications

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Book Chapters

  • Benchaar, C., Wang, Y., Chaves, A., McAllister, T., Beauchemin, K. (2007). Use of Plant Extracts in Ruminant Nutrition. In Surya N. Acharya, James E. (James Ernest) Thomas (Eds.), Advances in Medicinal Plant Research, (pp. 465-489). India: Research Signpost.

Journals

  • Meale, S., Beauchemin, K., Hristov, A., Chaves, A., McAllister, T. (2014). Board Invited Review: Opportunities and challenges in using exogenous enzymes to improve ruminant production. Journal of Animal Science, 92(2), 427-442. [More Information]
  • Reis, L., Chaves, A., Williams, S., Moate, P. (2014). Comparison of enantiomers of organic acids for their effects on methane production in vitro. Animal Production Science, 54, 1345-1349. [More Information]
  • Meale, S., Chaves, A., He, M., McAllister, T. (2014). Dose-response of supplementing marine algae (Schizochytrium sp.) on production performance, fatty acid profiles and wool parameters of growing lambs. Journal of Animal Science, 92(5), 2202-2213. [More Information]
  • Meale, S., Romao, J., He, M., Chaves, A., McAllister, T., Guan, L. (2014). Effect of diet on microRNA expression in ovine subcutaneous and visceral adipose tissues. Journal of Animal Science, 92, 3328-3337. [More Information]
  • Meale, S., Chaves, A., McAllister, T., Iwaasa, A., Yang, W., Benchaar, C. (2014). Including essential oils in lactating dairy cow diets: effects on methane emissions. Animal Production Science, 54(9), 1215-1218. [More Information]
  • Avila-Stagno, J., Chaves, A., Ribeiro Jr., G., Ungerfeld, E., McAllister, T. (2014). Inclusion of glycerol in forage diets increases methane production in a rumen simulation technique system. British Journal of Nutrition, 111(5), 829-835. [More Information]
  • Ribeiro Jr., G., Teixeira, A., Velasco, F., Faria Junior, W., Pereira, L., Chaves, A., Goncalves, L., McAllister, T. (2014). Production,Nutritional Quality and In vitro Methane Production from Andropogon gayanus Grass harvested at Different Maturities and Preserved as Hay or Silage. Asian - Australasian Journal of Animal Sciences, 27(3), 330-341. [More Information]
  • Meale, S., Chaves, A., Hannah, M., Williams, S., Hume, D., Mace, W., Moate, P. (2013). Comparison of wild type, AR1 and AR37 endophyte infected perennial ryegrass on in vitro methanogenesis. Animal Feed Science and Technology, 180, 10-17. [More Information]
  • Vieira, P., Pereira, L., Azevedo, J., Neves, A., Chizzotti, M., dos Santos, R., de Araujo, G., Mistura, C., Chaves, A. (2013). Development of mathematical models to predict dry matter intake in feedlot Santa Ines rams. Small Ruminant Research, 112(1-3), 78-84. [More Information]
  • Meale, S., Chaves, A., Ding, S., Bush, R., McAllister, T. (2013). Effects of crude glycerin supplementation on wool production, feeding behavior, and body condition of Merino ewes. Journal of Animal Science, 91(2), 878-885. [More Information]
  • Avila-Stagno, J., Chaves, A., He, M., Harstad, O., Beauchemin, K., McGinn, S., McAllister, T. (2013). Effects of increasing concentrations of glycerol in concentrate diets on nutrient digestability, methane emissions, growth, fatty acid profiles and carcass traits of lambs. Journal of Animal Science, 91(2), 829-837. [More Information]
  • Avila-Stagno, J., Chaves, A., Graham, A., McAllister, T. (2013). Effects of replacing barley grain with wheat dry distillers' grains on growth performance, eating behavior, and subcutaneous fatty acid profiles of lambs. Acta Agriculturae Scandinavica, Section A -Animal Science, 63(2), 93-100. [More Information]
  • Graham, A., Jonas, E., Tanner, A., Avila-Stagno, J., Bush, R., Chaves, A. (2013). Effects of replacing rolled barley grain with wheat dry distillers' grains with solubles in Merino sheep rations. Acta Agriculturae Scandinavica, Section A -Animal Science, 63(2), 101-110. [More Information]
  • Olivares-Palma, S., Meale, S., Pereira, L., Machado, F., Carneiro, H., Lopes, F., Mauricio, R., Chaves, A. (2013). In vitro Fermentation, digestion Kinetics and Methane Production of Oilseed Press cakes from Biodiesel Production. Asian - Australasian Journal of Animal Sciences, 26(8), 1102-1110. [More Information]
  • Avila-Stago, J., Chaves, A., He, M., McAllister, T. (2013). Increasing concentrations of wheat dry distillers' grains with solubles in iso-nitrogenous finishing diets reduce lamb performance. Small Ruminant Research, 114, 10-19. [More Information]
  • Herrmann, E., Herrin, K., Gleen, W., Davies, P., Stapley, R., Stebbings, V., Wiszniewski, J., Spindler, R., Faichney, G., Chaves, A. (2013). Partial Replacement of an Artificial Nectar Diet with Native Browse for Feather-Tail Gliders (Acrobates pygmaeus) in Captivity. Zoo Biology, 32(4), 394-399. [More Information]
  • Charles, E., Jonas, E., Chaves, A. (2012). Diet preference of lambs offered a choice of concentrate diets containing different proportions of wheat dried distiller's grain with solubles. Small Ruminant Research, 108(1), 67-72. [More Information]
  • Chaves, A., Baah, J., Wang, Y., McAllister, T., Benchaar, C. (2012). Effects of cinnamon leaf, oregano and sweet orange essential oils on fermentation and aerobic stability of barley silage. Journal of the Science of Food and Agriculture, 92, 906-915. [More Information]
  • Meale, S., Chaves, A., Baah, J., McAllister, T. (2012). Methane Production of Different Forages in In vitro Ruminal Fermentation. Asian - Australasian Journal of Animal Sciences, 25(1), 86-91. [More Information]
  • Meale, S., McAllister, T., Beauchemin, K., Harstad, O., Chaves, A. (2012). Strategies to reduce greenhouse gases from ruminant livestock. Acta Agriculturae Scandinavica, Section A -Animal Science, 62(4), 199-211. [More Information]
  • Chaves, A., Dugan, M., Stanford, K., Gibson, L., Bystrom, J., McAllister, T., Van Herk, F., Benchaar, C. (2011). A Dose-Response of Cinnamaldehyde Supplementation on Intake, Ruminal Fermentation, Blood Metabolites, Growth Performance, and Carcass Characteristics of Growing Lambs. Livestock Science, 141(2), 213-220. [More Information]
  • Cleary, L., Van Herk, F., Gibb, D., McAllister, T., Chaves, A. (2011). Dry Matter Digestion Kinetics of Two Varieties of Barley Grain Sown with Different Seeding and Nitrogen Fertilization Rates in Four Different Sites Across Canada. Asian - Australasian Journal of Animal Sciences, 24(7), 965-973. [More Information]
  • O'Hara, A., Tanner, A., McAllister, T., Gibb, D., Van Herk, F., Chaves, A. (2011). Effect of low and high oil corn distillers' grain on rumen fermentation, growth performance and carcass characteristics of lambs. Animal Production Science, 51, 708-716. [More Information]
  • Chaves, A., Baah, J., Wang, Y., McAllister, T., Benchaar, C. (2011). Effects of cinnamon leaf, oregano and sweet orange essential oils on fermentation and aerobic stability of barley silage. Journal of the Science of Food and Agriculture, 92(4), 906-915. [More Information]
  • Avila, J., Chaves, A., Hernandez-Calva, M., Beauchemin, K., McGinn, S., Wang, Y., Harstad, O., McAllister, T. (2011). Effects of replacing barley grain in feedlot diets with increasing levels of glycerol on in vitro fermentation and methane production. Animal Feed Science and Technology, 166-167, 265-268. [More Information]
  • Ilkin, S., Chaves, A., Ruys, A., Fraser, D. (2011). In vitro solubilisation and mechanical kinetics of cooked versus uncooked bones. Australian Veterinary Practitioner, 41(2), 66-69.
  • McKeown, L., Chaves, A., Oba, M., Dugan, M., Okine, E., McAllister, T. (2010). Effects of corn-, wheat- or triticale dry distillers' grains with solubles on in vitro fermentation, growth performance and carcass traits of lambs. Canadian Journal of Animal Science, 90(1), 99-108.
  • Fung, Y., Sparkes, J., Van Ekris-Schouten, I., Chaves, A., Bush, R. (2010). Effects of Feeding Fresh Citrus pulp to Merino Wethers on Wool Growth and Animal Performance. Animal Production Science, 50, 52-58. [More Information]
  • Wang, Y., Chaves, A., Rigby, F., He, M., McAllister, T. (2010). Effects of hops on ruminal fermentation, growth, carcass traits and shedding of Escherichia coli of feedlot cattle. Livestock Science, 129, 135-140.
  • Berthiaume, R., Benchaar, C., Chaves, A., Tremblay, G., Castonguay, Y., Bertrand, A., Belanger, G., Michaud, R., Lafreniere, C., McAllister, T., et al (2010). Effects of nonstructural carbohydrate concentration in alfalfa on fermentation and microbial protein synthesis in continuous culture. Journal of Dairy Science, 93(2), 693-700. [More Information]
  • McKeown, L., Chaves, A., Oba, M., Dugan, M., Okine, E., McAllister, T. (2010). Effects of replacing barley grain with triticale-based dried distillers' grains with solubles on nutrient digestibility, lamb growth performance and carcass traits. Canadian Journal of Animal Science, 90(1), 87-98.
  • Sparkes, J., Chaves, A., Fung, Y., Van Ekris-Schouten, I., Bush, R. (2010). Effects of Replacing Lucerne (Medicago sativa L.) Hay with Fresh Citrus Pulp on Ruminal Fermentation and Ewe Performance. Asian - Australasian Journal of Animal Sciences, 23(2), 197-204.
  • Wierenga, K., McAllister, T., Gibb, D., Chaves, A., Okine, E., Beauchemin, K., Oba, M. (2010). Evaluation of triticale dried distillers grains with solubles as a substitute for barley grain and barley silage in feedlot finishing diets. Journal of Animal Science, 88(9), 3018-3029.
  • Au, F., McKeown, L., McAllister, T., Chaves, A. (2010). Fermentation characteristics of corn-, triticale-, and wheat-based dried distillers' grains with solubles in barley-based diets determined using continuous and batch culture systems. Journal of the Science of Food and Agriculture, 90, 2074-2082. [More Information]
  • He, M., Yang, W., You, J., Chaves, A., Mir, P., Benchaar, C., McAllister, T. (2009). Effect of Garlic Oil on Fatty Acid Accumulation and Glycerol-3-Phosphate Dehydrogenase Activity in Differentiating Adipocytes. Asian - Australasian Journal of Animal Sciences, 22(12), 1686-1692.
  • Boudon, A., Peyraud, J., Faverdin, P., Delagarde, R., Delaby, L., Chaves, A. (2009). Effect of rumen fill on intake of fresh perennial ryegrass in young and mature dairy cows grazing or zero-grazing fresh perennial ryegrass. Animal, 3(12), 1706-1720.
  • Chaves, A., Schei, I., Wang, Y., McAllister, T., Benchaar, C. (2009). Effects of carvacrol and cinnamaldehyde on microbial fermentation when added to a barley- or corn-based diet in a continuous-culture system. Canadian Journal of Animal Science, 89(1), 97-104.
  • Holtshausen, L., Chaves, A., Beauchemin, K., McGinn, S., McAllister, T., Odongo, N., Cheeke, P., Benchaar, C. (2009). Feeding saponin-containing Yucca schidigera and Quillaja saponaria to decrease enteric methane production in dairy cows. Journal of Dairy Science, 92(6), 2809-2821.
  • Benchaar, C., Calsamiglia, S., Chaves, A., Fraser, G., Colombatto, D., McAllister, T., Beauchemin, K. (2008). A review of plant-derived essential oils in ruminant nutrition and production. Animal Feed Science and Technology, 145(1-4), 209-228. [More Information]
  • Cook, S., Maiti, P., Chaves, A., Benchaar, C., Beauchemin, K., McAllister, T. (2008). Avian (IgY) anti-methanogen antibodies for reducing ruminal methane production: In vitro assessment of their effects. Australian Journal of Experimental Agriculture ('09 renamed: Animal Production Science), 48(1-2), 260-264.
  • Chaves, A., Stanford, K., Gibson, L., McAllister, T., Benchaar, C. (2008). Effects of carvacrol and cinnamaldehyde on intake, rumen fermentation, growth performance, and carcass characteristics of growing lambs. Animal Feed Science and Technology, 145(1-4), 396-408. [More Information]
  • Chaves, A., Stanford, K., Dugan, M., Gibson, L., McAllister, T., Van Herk, F., Benchaar, C. (2008). Effects of cinnamaldehyde, garlic and juniper berry essential oils on rumen fermentation, blood metabolites, growth performance, and carcass characteristics of growing lambs. Livestock Science, 117(2-3), 215-224.
  • Chaves, A., He, M., Yang, W., Hristov, A., McAllister, T., Benchaar, C. (2008). Effects of essential oils on proteolytic, deaminative and methanogenic activities of mixed ruminal bacteria. Canadian Journal of Animal Science, 88(1), 117-122.
  • Ohene-Adjei, S., Chaves, A., McAllister, T., Benchaar, C., Teather, R., Forster, R. (2008). Evidence of increased diversity of methanogenic archaea with plant extract supplementation. Microbial Ecology: an international journal, 56(2), 234-242. [More Information]
  • Fraser, G., Chaves, A., Wang, Y., McAllister, T., Beauchemin, K., Benchaar, C. (2007). Assessment of the effects of cinnamon leaf oil on rumen microbial fermentation using two continuous culture systems. Journal of Dairy Science, 90(5), 2315-2328.
  • Benchaar, C., Chaves, A., Fraser, G., Wang, Y., Beauchemin, K., McAllister, T. (2007). Effects of essential oils and their components on in vitro rumen microbial fermentation. Canadian Journal of Animal Science, 87(3), 413-419.
  • Yang, W., Benchaar, C., Ametaj, B., Chaves, A., He, M., McAllister, T. (2007). Effects of garlic and juniper berry essential oils on ruminal fermentation and on the site and extent of digestion in lactating cows. Journal of Dairy Science, 90(12), 5671-5681.
  • Chaves, A., Burke, J., Waghorn, G., Brookes, I. (2006). Digestion kinetics of leaf, stem and inflorescence from five species of mature grasses. Journal of the Science of Food and Agriculture, 86, 816-825. [More Information]
  • Chaves, A., Waghorn, G., Brookes, I., Woodfield, D. (2006). Effect of maturation and initial harvest dates on the nutritive characteristics of ryegrass (Lolium perenne L.). Animal Feed Science and Technology, 127, 293-318. [More Information]
  • Chaves, A., Thompson, L., Iwaasa, A., Scott, S., Olson, M., Benchaar, C., Veira, D., McAllister, T. (2006). Effect of pasture type (alfalfa vs. grass) on methane and carbon dioxide production by yearling beef heifers. Canadian Journal of Animal Science, 86, 409-418.
  • Chaves, A., Woodward, S., Waghorn, G., Brookes, I., Burke, J. (2006). Effects on Performance of Sulla and/or Maize Silages Supplements for Grazing Dairy Cows. Asian - Australasian Journal of Animal Sciences, 19(9), 1271-1282.
  • Chaves, A., Brookes, I., Waghorn, G., Woodward, S., Burke, J. (2006). Evaluation of Cornell Net Carbohydrate and Protein System predictions of milk production, intake and liveweight change of grazing dairy cows fed contrast silages. Journal of Agricultural Science, 144, 85-91. [More Information]
  • Woodward, S., Chaves, A., Waghorn, G., Brookes, I., Burke, J. (2006). Supplementing fresh pasture with maize, lotus, sulla and pasture silages for dairy cows in summer. Journal of the Science of Food and Agriculture, 86, 1263-1270. [More Information]

Conferences

  • Faichney, G., NedVed, V., Meale, S., Chaves, A. (2010). Digestion of its diet by a male Asian elephant (Elephas maximus). 2010 Annual Scientific Meeting of the Nutrition Society of Australia, N/A: N/A.
  • Avila Stagno, J., Chaves, A., Beauchemin, K., McGinn, S., McAllister, T. (2010). Effects of replacing barley in feedlot diets with increasing levels of glycerol on in vitro methane production. Greenhouse Gases and Animal Agriculture (GGAA) 2010, N/A: N/A.
  • Meale, S., Chaves, A., Schei, I., McAllister, T., Iwaasa, A., Yang, W., Benchaar, C. (2010). Including essential oils in ruminal batch cultures, or in diets fed to lactating dairy cows: effects on methane emissions. Greenhouse Gases and Animal Agriculture (GGAA) 2010, N/A: N/A.
  • Meale, S., Chaves, A., Baah, J., McAllister, T. (2010). Ranking forage species for methane production using batch culture in vitro fermentation. Greenhouse Gases and Animal Agriculture (GGAA) 2010, N/A: N/A.
  • Benchaar, C., Eugene, M., Cortes, C., Chaves, A., Petit, H., McAllister, T., Iwaasa, A., Chouinard, P. (2008). Digestion, milk production, and milk composition of dairy cows fed increasing amounts of linseed oil. Joint Meeting of the American Dairy Science Association (ADSA) and the American Society of Animal Science (ASAS) 2008, United States: American Dairy Science Association and American Society of Animal Science.
  • Chaves, A., Baah, J., Yang, W., McAllister, T., Benchaar, C. (2008). Effect of essential oils used as inoculants on the nutritive value of barley silage. Joint XXI International Grassland Congress / VIII International Rangeland Congress Conference IGC/IRC 2008, China: Guangdong People's Publishing House.
  • He, M., Yang, W., Benchaar, C., Chaves, A., McAllister, T. (2008). Effect of feeding essential oils and monesin on fatty acid profiles of milk fat. Joint Meeting of the American Dairy Science Association (ADSA) and the American Society of Animal Science (ASAS) 2008, United States: American Dairy Science Association and American Society of Animal Science.
  • McKeown, L., Chaves, A., Oba, M., Okine, E., McAllister, T., Gibb, D. (2008). Effect of wheat-, corn- and triticale-based distillers grains with solubles on performance and carcass characteristics of growing lambs. Joint Meeting of the American Dairy Science Association (ADSA) and the American Society of Animal Science (ASAS) 2008, United States: American Dairy Science Association and American Society of Animal Science.
  • Benchaar, C., Eugene, M., Cortes, C., Chaves, A., Petit, H., McAllister, T., Iwaasa, A., Chouinard, P. (2008). Effects of increasing amounts of linseed oil on ruminal fermentation, protozoa counts, and forage in situ ruminal degradation in dairy cows. Joint Meeting of the American Dairy Science Association (ADSA) and the American Society of Animal Science (ASAS) 2008, United States: American Dairy Science Association and American Society of Animal Science.
  • Ohene-Adjei, S., Chaves, A., McAllister, T., Benchaar, C., Teather, R., Forster, R. (2008). Essentials Oils and the Diversity of Rumen Methanogens. 3rd Greenhouse Gases and Animal Agriculture Conference GGAA 2007, Australia: CSIRO Publishing.
  • Benchaar, C., Eugene, M., Cortes, C., Chaves, A., Petit, H., McAllister, T., Iwaasa, A., Chouinard, P. (2008). Milk fatty acid composition of dairy cows fed increasing amounts of linseed oil. Joint Meeting of the American Dairy Science Association (ADSA) and the American Society of Animal Science (ASAS) 2008, United States: American Dairy Science Association and American Society of Animal Science.
  • Chaves, A., Hristov, A., Waghorn, G., Clark, H., Krause, K., McAllister, T. (2008). Use of Cloned Dairy Cows to Define Physiological Contributions to Ruminal Methane Production. 3rd Greenhouse Gases and Animal Agriculture Conference GGAA 2007, Australia: CSIRO Publishing.
  • Benchaar, C., Eugene, M., Cortes, C., Chaves, A., Petit, H., McAllister, T., Iwaasa, A., Chouinard, P. (2008). Yield of fatty acids in milk of dairy cows fed increasing amounts of linseed oil. Canadian Society of Animal Science Annual Meeting CSAS 2008, Canada: Canadian Society of Animal Science.
  • Chaves, A., Stanford, K., Gibson, L., McAllister, T., Van Herk, F., Benchaar, C. (2007). Dose response of cinnamaldehyde on lamb performance and carcass characteristics. 58th Annual Meeting of the European Association for Animal Production EAAP 2007, The Netherlands: Wageningen Academic Publishers.
  • Yang, W., Benchaar, C., Chaves, A., He, M., McAllister, T. (2007). Effects of garlic and juniper berry essential oils on site and extent of digestion by dairy cows. Joint Meeting of the American Dairy Science Association (ADSA), Poultry Science Association (PSA), Mexican Association of Animal Prod. (AMPA) and the American Society of Animal Science (ASAS) 2007, United States: American Dairy Science Association / Poultry Science Association / American Society of Animal Science.
  • He, M., You, J., Mir, P., Yang, W., Benchaar, C., Chaves, A., McAllister, T. (2007). Garlic and juniper berry oils improve fatty acids accumulation in differentiating 3T3-L1 adipocytes while trans 10, cis 12 conjugated linoleic acid depresses it. The Canadian Nutrition Congress (CNC) 2007: Joint Annual Meeting of the Canadian Section of the American Oil Chemists' Society (CAOCS), the Canadian Society of Animal Science (CSAS) and the Canadian Society for Nutritional Sciences (CSNS), Canada: University of Manitoba.
  • Berthiaume, R., Benchaar, C., Chaves, A., Tremblay, G., Castonguay, Y., Bertrand, A., Belanger, G., Michaud, R., Lafreniere, C., Brito, A. (2007). Increasing non structural carbohydrates in alfalfa improves in vitro microbial N synthesis. Joint Meeting of the American Dairy Science Association (ADSA), Poultry Science Association (PSA), Mexican Association of Animal Prod. (AMPA) and the American Society of Animal Science (ASAS) 2007, United States: American Dairy Science Association / Poultry Science Association / American Society of Animal Science.
  • Stanford, K., Chaves, A., Buckley, K. (2007). Voies de valorisations des matériels à risques spécifiés (MRS) par le compostage et la gazéification. Rencontres Recherches Ruminants (3R) 2007, France: Institut de l'Elevage.
  • Yang, W., Chaves, A., He, M., Benchaar, C., McAllister, T. (2006). Effect of monensin and essential oil on feed intake, ruminal fermentation, milk yield and composition of lactating dairy cows. Joint Colloquium of the Canadian Society of Agronomy (CSA), the Canadian Society for Horticultural Society (CSHS) and the Canadian Society of Animal Science (CSAS) 2006, Canada: Agricultural Institute of Canada.
  • Chaves, A., Stanford, K., Gibson, L., Benchaar, C., McAllister, T. (2006). The effects of different plants extracts on ewe lamb performance and carcass characteristics. Joint Colloquium of the Canadian Society of Agronomy (CSA), the Canadian Society for Horticultural Society (CSHS) and the Canadian Society of Animal Science (CSAS) 2006, Canada: Agricultural Institute of Canada.

2014

  • Meale, S., Beauchemin, K., Hristov, A., Chaves, A., McAllister, T. (2014). Board Invited Review: Opportunities and challenges in using exogenous enzymes to improve ruminant production. Journal of Animal Science, 92(2), 427-442. [More Information]
  • Reis, L., Chaves, A., Williams, S., Moate, P. (2014). Comparison of enantiomers of organic acids for their effects on methane production in vitro. Animal Production Science, 54, 1345-1349. [More Information]
  • Meale, S., Chaves, A., He, M., McAllister, T. (2014). Dose-response of supplementing marine algae (Schizochytrium sp.) on production performance, fatty acid profiles and wool parameters of growing lambs. Journal of Animal Science, 92(5), 2202-2213. [More Information]
  • Meale, S., Romao, J., He, M., Chaves, A., McAllister, T., Guan, L. (2014). Effect of diet on microRNA expression in ovine subcutaneous and visceral adipose tissues. Journal of Animal Science, 92, 3328-3337. [More Information]
  • Meale, S., Chaves, A., McAllister, T., Iwaasa, A., Yang, W., Benchaar, C. (2014). Including essential oils in lactating dairy cow diets: effects on methane emissions. Animal Production Science, 54(9), 1215-1218. [More Information]
  • Avila-Stagno, J., Chaves, A., Ribeiro Jr., G., Ungerfeld, E., McAllister, T. (2014). Inclusion of glycerol in forage diets increases methane production in a rumen simulation technique system. British Journal of Nutrition, 111(5), 829-835. [More Information]
  • Ribeiro Jr., G., Teixeira, A., Velasco, F., Faria Junior, W., Pereira, L., Chaves, A., Goncalves, L., McAllister, T. (2014). Production,Nutritional Quality and In vitro Methane Production from Andropogon gayanus Grass harvested at Different Maturities and Preserved as Hay or Silage. Asian - Australasian Journal of Animal Sciences, 27(3), 330-341. [More Information]

2013

  • Meale, S., Chaves, A., Hannah, M., Williams, S., Hume, D., Mace, W., Moate, P. (2013). Comparison of wild type, AR1 and AR37 endophyte infected perennial ryegrass on in vitro methanogenesis. Animal Feed Science and Technology, 180, 10-17. [More Information]
  • Vieira, P., Pereira, L., Azevedo, J., Neves, A., Chizzotti, M., dos Santos, R., de Araujo, G., Mistura, C., Chaves, A. (2013). Development of mathematical models to predict dry matter intake in feedlot Santa Ines rams. Small Ruminant Research, 112(1-3), 78-84. [More Information]
  • Meale, S., Chaves, A., Ding, S., Bush, R., McAllister, T. (2013). Effects of crude glycerin supplementation on wool production, feeding behavior, and body condition of Merino ewes. Journal of Animal Science, 91(2), 878-885. [More Information]
  • Avila-Stagno, J., Chaves, A., He, M., Harstad, O., Beauchemin, K., McGinn, S., McAllister, T. (2013). Effects of increasing concentrations of glycerol in concentrate diets on nutrient digestability, methane emissions, growth, fatty acid profiles and carcass traits of lambs. Journal of Animal Science, 91(2), 829-837. [More Information]
  • Avila-Stagno, J., Chaves, A., Graham, A., McAllister, T. (2013). Effects of replacing barley grain with wheat dry distillers' grains on growth performance, eating behavior, and subcutaneous fatty acid profiles of lambs. Acta Agriculturae Scandinavica, Section A -Animal Science, 63(2), 93-100. [More Information]
  • Graham, A., Jonas, E., Tanner, A., Avila-Stagno, J., Bush, R., Chaves, A. (2013). Effects of replacing rolled barley grain with wheat dry distillers' grains with solubles in Merino sheep rations. Acta Agriculturae Scandinavica, Section A -Animal Science, 63(2), 101-110. [More Information]
  • Olivares-Palma, S., Meale, S., Pereira, L., Machado, F., Carneiro, H., Lopes, F., Mauricio, R., Chaves, A. (2013). In vitro Fermentation, digestion Kinetics and Methane Production of Oilseed Press cakes from Biodiesel Production. Asian - Australasian Journal of Animal Sciences, 26(8), 1102-1110. [More Information]
  • Avila-Stago, J., Chaves, A., He, M., McAllister, T. (2013). Increasing concentrations of wheat dry distillers' grains with solubles in iso-nitrogenous finishing diets reduce lamb performance. Small Ruminant Research, 114, 10-19. [More Information]
  • Herrmann, E., Herrin, K., Gleen, W., Davies, P., Stapley, R., Stebbings, V., Wiszniewski, J., Spindler, R., Faichney, G., Chaves, A. (2013). Partial Replacement of an Artificial Nectar Diet with Native Browse for Feather-Tail Gliders (Acrobates pygmaeus) in Captivity. Zoo Biology, 32(4), 394-399. [More Information]

2012

  • Charles, E., Jonas, E., Chaves, A. (2012). Diet preference of lambs offered a choice of concentrate diets containing different proportions of wheat dried distiller's grain with solubles. Small Ruminant Research, 108(1), 67-72. [More Information]
  • Chaves, A., Baah, J., Wang, Y., McAllister, T., Benchaar, C. (2012). Effects of cinnamon leaf, oregano and sweet orange essential oils on fermentation and aerobic stability of barley silage. Journal of the Science of Food and Agriculture, 92, 906-915. [More Information]
  • Meale, S., Chaves, A., Baah, J., McAllister, T. (2012). Methane Production of Different Forages in In vitro Ruminal Fermentation. Asian - Australasian Journal of Animal Sciences, 25(1), 86-91. [More Information]
  • Meale, S., McAllister, T., Beauchemin, K., Harstad, O., Chaves, A. (2012). Strategies to reduce greenhouse gases from ruminant livestock. Acta Agriculturae Scandinavica, Section A -Animal Science, 62(4), 199-211. [More Information]

2011

  • Chaves, A., Dugan, M., Stanford, K., Gibson, L., Bystrom, J., McAllister, T., Van Herk, F., Benchaar, C. (2011). A Dose-Response of Cinnamaldehyde Supplementation on Intake, Ruminal Fermentation, Blood Metabolites, Growth Performance, and Carcass Characteristics of Growing Lambs. Livestock Science, 141(2), 213-220. [More Information]
  • Cleary, L., Van Herk, F., Gibb, D., McAllister, T., Chaves, A. (2011). Dry Matter Digestion Kinetics of Two Varieties of Barley Grain Sown with Different Seeding and Nitrogen Fertilization Rates in Four Different Sites Across Canada. Asian - Australasian Journal of Animal Sciences, 24(7), 965-973. [More Information]
  • O'Hara, A., Tanner, A., McAllister, T., Gibb, D., Van Herk, F., Chaves, A. (2011). Effect of low and high oil corn distillers' grain on rumen fermentation, growth performance and carcass characteristics of lambs. Animal Production Science, 51, 708-716. [More Information]
  • Chaves, A., Baah, J., Wang, Y., McAllister, T., Benchaar, C. (2011). Effects of cinnamon leaf, oregano and sweet orange essential oils on fermentation and aerobic stability of barley silage. Journal of the Science of Food and Agriculture, 92(4), 906-915. [More Information]
  • Avila, J., Chaves, A., Hernandez-Calva, M., Beauchemin, K., McGinn, S., Wang, Y., Harstad, O., McAllister, T. (2011). Effects of replacing barley grain in feedlot diets with increasing levels of glycerol on in vitro fermentation and methane production. Animal Feed Science and Technology, 166-167, 265-268. [More Information]
  • Ilkin, S., Chaves, A., Ruys, A., Fraser, D. (2011). In vitro solubilisation and mechanical kinetics of cooked versus uncooked bones. Australian Veterinary Practitioner, 41(2), 66-69.

2010

  • Faichney, G., NedVed, V., Meale, S., Chaves, A. (2010). Digestion of its diet by a male Asian elephant (Elephas maximus). 2010 Annual Scientific Meeting of the Nutrition Society of Australia, N/A: N/A.
  • McKeown, L., Chaves, A., Oba, M., Dugan, M., Okine, E., McAllister, T. (2010). Effects of corn-, wheat- or triticale dry distillers' grains with solubles on in vitro fermentation, growth performance and carcass traits of lambs. Canadian Journal of Animal Science, 90(1), 99-108.
  • Fung, Y., Sparkes, J., Van Ekris-Schouten, I., Chaves, A., Bush, R. (2010). Effects of Feeding Fresh Citrus pulp to Merino Wethers on Wool Growth and Animal Performance. Animal Production Science, 50, 52-58. [More Information]
  • Wang, Y., Chaves, A., Rigby, F., He, M., McAllister, T. (2010). Effects of hops on ruminal fermentation, growth, carcass traits and shedding of Escherichia coli of feedlot cattle. Livestock Science, 129, 135-140.
  • Berthiaume, R., Benchaar, C., Chaves, A., Tremblay, G., Castonguay, Y., Bertrand, A., Belanger, G., Michaud, R., Lafreniere, C., McAllister, T., et al (2010). Effects of nonstructural carbohydrate concentration in alfalfa on fermentation and microbial protein synthesis in continuous culture. Journal of Dairy Science, 93(2), 693-700. [More Information]
  • McKeown, L., Chaves, A., Oba, M., Dugan, M., Okine, E., McAllister, T. (2010). Effects of replacing barley grain with triticale-based dried distillers' grains with solubles on nutrient digestibility, lamb growth performance and carcass traits. Canadian Journal of Animal Science, 90(1), 87-98.
  • Avila Stagno, J., Chaves, A., Beauchemin, K., McGinn, S., McAllister, T. (2010). Effects of replacing barley in feedlot diets with increasing levels of glycerol on in vitro methane production. Greenhouse Gases and Animal Agriculture (GGAA) 2010, N/A: N/A.
  • Sparkes, J., Chaves, A., Fung, Y., Van Ekris-Schouten, I., Bush, R. (2010). Effects of Replacing Lucerne (Medicago sativa L.) Hay with Fresh Citrus Pulp on Ruminal Fermentation and Ewe Performance. Asian - Australasian Journal of Animal Sciences, 23(2), 197-204.
  • Wierenga, K., McAllister, T., Gibb, D., Chaves, A., Okine, E., Beauchemin, K., Oba, M. (2010). Evaluation of triticale dried distillers grains with solubles as a substitute for barley grain and barley silage in feedlot finishing diets. Journal of Animal Science, 88(9), 3018-3029.
  • Au, F., McKeown, L., McAllister, T., Chaves, A. (2010). Fermentation characteristics of corn-, triticale-, and wheat-based dried distillers' grains with solubles in barley-based diets determined using continuous and batch culture systems. Journal of the Science of Food and Agriculture, 90, 2074-2082. [More Information]
  • Meale, S., Chaves, A., Schei, I., McAllister, T., Iwaasa, A., Yang, W., Benchaar, C. (2010). Including essential oils in ruminal batch cultures, or in diets fed to lactating dairy cows: effects on methane emissions. Greenhouse Gases and Animal Agriculture (GGAA) 2010, N/A: N/A.
  • Meale, S., Chaves, A., Baah, J., McAllister, T. (2010). Ranking forage species for methane production using batch culture in vitro fermentation. Greenhouse Gases and Animal Agriculture (GGAA) 2010, N/A: N/A.

2009

  • He, M., Yang, W., You, J., Chaves, A., Mir, P., Benchaar, C., McAllister, T. (2009). Effect of Garlic Oil on Fatty Acid Accumulation and Glycerol-3-Phosphate Dehydrogenase Activity in Differentiating Adipocytes. Asian - Australasian Journal of Animal Sciences, 22(12), 1686-1692.
  • Boudon, A., Peyraud, J., Faverdin, P., Delagarde, R., Delaby, L., Chaves, A. (2009). Effect of rumen fill on intake of fresh perennial ryegrass in young and mature dairy cows grazing or zero-grazing fresh perennial ryegrass. Animal, 3(12), 1706-1720.
  • Chaves, A., Schei, I., Wang, Y., McAllister, T., Benchaar, C. (2009). Effects of carvacrol and cinnamaldehyde on microbial fermentation when added to a barley- or corn-based diet in a continuous-culture system. Canadian Journal of Animal Science, 89(1), 97-104.
  • Holtshausen, L., Chaves, A., Beauchemin, K., McGinn, S., McAllister, T., Odongo, N., Cheeke, P., Benchaar, C. (2009). Feeding saponin-containing Yucca schidigera and Quillaja saponaria to decrease enteric methane production in dairy cows. Journal of Dairy Science, 92(6), 2809-2821.

2008

  • Benchaar, C., Calsamiglia, S., Chaves, A., Fraser, G., Colombatto, D., McAllister, T., Beauchemin, K. (2008). A review of plant-derived essential oils in ruminant nutrition and production. Animal Feed Science and Technology, 145(1-4), 209-228. [More Information]
  • Cook, S., Maiti, P., Chaves, A., Benchaar, C., Beauchemin, K., McAllister, T. (2008). Avian (IgY) anti-methanogen antibodies for reducing ruminal methane production: In vitro assessment of their effects. Australian Journal of Experimental Agriculture ('09 renamed: Animal Production Science), 48(1-2), 260-264.
  • Benchaar, C., Eugene, M., Cortes, C., Chaves, A., Petit, H., McAllister, T., Iwaasa, A., Chouinard, P. (2008). Digestion, milk production, and milk composition of dairy cows fed increasing amounts of linseed oil. Joint Meeting of the American Dairy Science Association (ADSA) and the American Society of Animal Science (ASAS) 2008, United States: American Dairy Science Association and American Society of Animal Science.
  • Chaves, A., Baah, J., Yang, W., McAllister, T., Benchaar, C. (2008). Effect of essential oils used as inoculants on the nutritive value of barley silage. Joint XXI International Grassland Congress / VIII International Rangeland Congress Conference IGC/IRC 2008, China: Guangdong People's Publishing House.
  • He, M., Yang, W., Benchaar, C., Chaves, A., McAllister, T. (2008). Effect of feeding essential oils and monesin on fatty acid profiles of milk fat. Joint Meeting of the American Dairy Science Association (ADSA) and the American Society of Animal Science (ASAS) 2008, United States: American Dairy Science Association and American Society of Animal Science.
  • McKeown, L., Chaves, A., Oba, M., Okine, E., McAllister, T., Gibb, D. (2008). Effect of wheat-, corn- and triticale-based distillers grains with solubles on performance and carcass characteristics of growing lambs. Joint Meeting of the American Dairy Science Association (ADSA) and the American Society of Animal Science (ASAS) 2008, United States: American Dairy Science Association and American Society of Animal Science.
  • Chaves, A., Stanford, K., Gibson, L., McAllister, T., Benchaar, C. (2008). Effects of carvacrol and cinnamaldehyde on intake, rumen fermentation, growth performance, and carcass characteristics of growing lambs. Animal Feed Science and Technology, 145(1-4), 396-408. [More Information]
  • Chaves, A., Stanford, K., Dugan, M., Gibson, L., McAllister, T., Van Herk, F., Benchaar, C. (2008). Effects of cinnamaldehyde, garlic and juniper berry essential oils on rumen fermentation, blood metabolites, growth performance, and carcass characteristics of growing lambs. Livestock Science, 117(2-3), 215-224.
  • Chaves, A., He, M., Yang, W., Hristov, A., McAllister, T., Benchaar, C. (2008). Effects of essential oils on proteolytic, deaminative and methanogenic activities of mixed ruminal bacteria. Canadian Journal of Animal Science, 88(1), 117-122.
  • Benchaar, C., Eugene, M., Cortes, C., Chaves, A., Petit, H., McAllister, T., Iwaasa, A., Chouinard, P. (2008). Effects of increasing amounts of linseed oil on ruminal fermentation, protozoa counts, and forage in situ ruminal degradation in dairy cows. Joint Meeting of the American Dairy Science Association (ADSA) and the American Society of Animal Science (ASAS) 2008, United States: American Dairy Science Association and American Society of Animal Science.
  • Ohene-Adjei, S., Chaves, A., McAllister, T., Benchaar, C., Teather, R., Forster, R. (2008). Essentials Oils and the Diversity of Rumen Methanogens. 3rd Greenhouse Gases and Animal Agriculture Conference GGAA 2007, Australia: CSIRO Publishing.
  • Ohene-Adjei, S., Chaves, A., McAllister, T., Benchaar, C., Teather, R., Forster, R. (2008). Evidence of increased diversity of methanogenic archaea with plant extract supplementation. Microbial Ecology: an international journal, 56(2), 234-242. [More Information]
  • Benchaar, C., Eugene, M., Cortes, C., Chaves, A., Petit, H., McAllister, T., Iwaasa, A., Chouinard, P. (2008). Milk fatty acid composition of dairy cows fed increasing amounts of linseed oil. Joint Meeting of the American Dairy Science Association (ADSA) and the American Society of Animal Science (ASAS) 2008, United States: American Dairy Science Association and American Society of Animal Science.
  • Chaves, A., Hristov, A., Waghorn, G., Clark, H., Krause, K., McAllister, T. (2008). Use of Cloned Dairy Cows to Define Physiological Contributions to Ruminal Methane Production. 3rd Greenhouse Gases and Animal Agriculture Conference GGAA 2007, Australia: CSIRO Publishing.
  • Benchaar, C., Eugene, M., Cortes, C., Chaves, A., Petit, H., McAllister, T., Iwaasa, A., Chouinard, P. (2008). Yield of fatty acids in milk of dairy cows fed increasing amounts of linseed oil. Canadian Society of Animal Science Annual Meeting CSAS 2008, Canada: Canadian Society of Animal Science.

2007

  • Fraser, G., Chaves, A., Wang, Y., McAllister, T., Beauchemin, K., Benchaar, C. (2007). Assessment of the effects of cinnamon leaf oil on rumen microbial fermentation using two continuous culture systems. Journal of Dairy Science, 90(5), 2315-2328.
  • Chaves, A., Stanford, K., Gibson, L., McAllister, T., Van Herk, F., Benchaar, C. (2007). Dose response of cinnamaldehyde on lamb performance and carcass characteristics. 58th Annual Meeting of the European Association for Animal Production EAAP 2007, The Netherlands: Wageningen Academic Publishers.
  • Benchaar, C., Chaves, A., Fraser, G., Wang, Y., Beauchemin, K., McAllister, T. (2007). Effects of essential oils and their components on in vitro rumen microbial fermentation. Canadian Journal of Animal Science, 87(3), 413-419.
  • Yang, W., Benchaar, C., Ametaj, B., Chaves, A., He, M., McAllister, T. (2007). Effects of garlic and juniper berry essential oils on ruminal fermentation and on the site and extent of digestion in lactating cows. Journal of Dairy Science, 90(12), 5671-5681.
  • Yang, W., Benchaar, C., Chaves, A., He, M., McAllister, T. (2007). Effects of garlic and juniper berry essential oils on site and extent of digestion by dairy cows. Joint Meeting of the American Dairy Science Association (ADSA), Poultry Science Association (PSA), Mexican Association of Animal Prod. (AMPA) and the American Society of Animal Science (ASAS) 2007, United States: American Dairy Science Association / Poultry Science Association / American Society of Animal Science.
  • He, M., You, J., Mir, P., Yang, W., Benchaar, C., Chaves, A., McAllister, T. (2007). Garlic and juniper berry oils improve fatty acids accumulation in differentiating 3T3-L1 adipocytes while trans 10, cis 12 conjugated linoleic acid depresses it. The Canadian Nutrition Congress (CNC) 2007: Joint Annual Meeting of the Canadian Section of the American Oil Chemists' Society (CAOCS), the Canadian Society of Animal Science (CSAS) and the Canadian Society for Nutritional Sciences (CSNS), Canada: University of Manitoba.
  • Berthiaume, R., Benchaar, C., Chaves, A., Tremblay, G., Castonguay, Y., Bertrand, A., Belanger, G., Michaud, R., Lafreniere, C., Brito, A. (2007). Increasing non structural carbohydrates in alfalfa improves in vitro microbial N synthesis. Joint Meeting of the American Dairy Science Association (ADSA), Poultry Science Association (PSA), Mexican Association of Animal Prod. (AMPA) and the American Society of Animal Science (ASAS) 2007, United States: American Dairy Science Association / Poultry Science Association / American Society of Animal Science.
  • Benchaar, C., Wang, Y., Chaves, A., McAllister, T., Beauchemin, K. (2007). Use of Plant Extracts in Ruminant Nutrition. In Surya N. Acharya, James E. (James Ernest) Thomas (Eds.), Advances in Medicinal Plant Research, (pp. 465-489). India: Research Signpost.
  • Stanford, K., Chaves, A., Buckley, K. (2007). Voies de valorisations des matériels à risques spécifiés (MRS) par le compostage et la gazéification. Rencontres Recherches Ruminants (3R) 2007, France: Institut de l'Elevage.

2006

  • Chaves, A., Burke, J., Waghorn, G., Brookes, I. (2006). Digestion kinetics of leaf, stem and inflorescence from five species of mature grasses. Journal of the Science of Food and Agriculture, 86, 816-825. [More Information]
  • Chaves, A., Waghorn, G., Brookes, I., Woodfield, D. (2006). Effect of maturation and initial harvest dates on the nutritive characteristics of ryegrass (Lolium perenne L.). Animal Feed Science and Technology, 127, 293-318. [More Information]
  • Yang, W., Chaves, A., He, M., Benchaar, C., McAllister, T. (2006). Effect of monensin and essential oil on feed intake, ruminal fermentation, milk yield and composition of lactating dairy cows. Joint Colloquium of the Canadian Society of Agronomy (CSA), the Canadian Society for Horticultural Society (CSHS) and the Canadian Society of Animal Science (CSAS) 2006, Canada: Agricultural Institute of Canada.
  • Chaves, A., Thompson, L., Iwaasa, A., Scott, S., Olson, M., Benchaar, C., Veira, D., McAllister, T. (2006). Effect of pasture type (alfalfa vs. grass) on methane and carbon dioxide production by yearling beef heifers. Canadian Journal of Animal Science, 86, 409-418.
  • Chaves, A., Woodward, S., Waghorn, G., Brookes, I., Burke, J. (2006). Effects on Performance of Sulla and/or Maize Silages Supplements for Grazing Dairy Cows. Asian - Australasian Journal of Animal Sciences, 19(9), 1271-1282.
  • Chaves, A., Brookes, I., Waghorn, G., Woodward, S., Burke, J. (2006). Evaluation of Cornell Net Carbohydrate and Protein System predictions of milk production, intake and liveweight change of grazing dairy cows fed contrast silages. Journal of Agricultural Science, 144, 85-91. [More Information]
  • Woodward, S., Chaves, A., Waghorn, G., Brookes, I., Burke, J. (2006). Supplementing fresh pasture with maize, lotus, sulla and pasture silages for dairy cows in summer. Journal of the Science of Food and Agriculture, 86, 1263-1270. [More Information]
  • Chaves, A., Stanford, K., Gibson, L., Benchaar, C., McAllister, T. (2006). The effects of different plants extracts on ewe lamb performance and carcass characteristics. Joint Colloquium of the Canadian Society of Agronomy (CSA), the Canadian Society for Horticultural Society (CSHS) and the Canadian Society of Animal Science (CSAS) 2006, Canada: Agricultural Institute of Canada.

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