Dr Cameron Clark

B. Sc. Agr. (Hons), PhD (University of Sydney)
Senior Research Fellow

C04B - M C Franklin - Laboratory Camden
The University of Sydney

Telephone +61 477324206
Fax +61 2 4655 2374

Website FutureDairy

Biographical details

After spending 5 years as a Dairy NZ farm systems scientist in New Zealand, Cameron has returned home to the University where he completed his PhD in dairy cow physiology. Having a keen interest in the dairy farming system, Cameron has conducted research across a broad range of topics as listed below.

Research interests

Cameron's current research focus is on the use of sensor and cow behaviour data to improve feed use efficiency on dairy farms. Incorporating grazeable forages into automatic milking systems, the early detection of poor cow health and calving through sensors and machine learning and improving milking robot utilisation in automatic milking systems through strategic feed allocation are three key areas of Cameron’s current research.

Previous research areas:

  • Best practice management of chicory and plantain to increase quality and quantity given differing grazing timings and severities
  • Ability to reduce urine patch N loading onto pasture by allocating differing timings of pasture allocation.
  • The development of a model to increase pasture growth on farm by determining the cause of differences in pasture growth between paddocks
  • Investigating differences in type and quantity of water soluble carbohydrate in perennial ryegrass associated with defoliation timing.

Teaching and supervision

Dairy, Sensors, Automation, Robotics, Farm Systems

In the media

Selected publications

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Journals

  • Clark, C., Kwinten, N., van Gastel, D., Kerrisk (nee Davis), K., Lyons, N., Garcia, S. (2014). Differences in Voluntary Cow Traffic between Holstein and Illawarra Breeds of Dairy Cattle in a Pasture-based Automatic Milking System. Asian - Australasian Journal of Animal Sciences, 27(4), 587-591. [More Information]
  • Clark, C., Horadagoda, A., Kerrisk (nee Davis), K., Scott, V., Islam, M., Kaur Jhajj, R., Garcia, S. (2014). Grazing Soybean to Increase Voluntary Cow Traffic in a Pasture-based Automatic Milking System. Asian - Australasian Journal of Animal Sciences, 27(3), 422-430. [More Information]
  • Garcia, S., Islam, M., Clark, C., Martin, P. (2014). Kikuyu-based pasture for dairy production: a review. Crop and Pasture Science, 65(8), 787-797. [More Information]
  • Clark, C., Mitchell, M., Islam, M., Jacobs, B. (2014). Phosphorus content of the soil influences the growth and productivity of Themeda triandra Forssk. and Microlaena stipoides (Labill.) R.Br. Rangeland Journal, 36, 233-237.
  • Glassey, C., Clark, C., Roach, C., Lee, J. (2013). Herbicide application and direct drilling improves establishment and yield of chicory and plantain. Grass and Forage Science, 68(1), 178-185. [More Information]
  • Romera, A., Beukes, P., Clark, D., Clark, C., Tait, A. (2013). Pasture growth model to assist management on dairy farms: Testing the concept with farmers. Grassland Science, 59, 20-29. [More Information]
  • Griffiths, W., Clark, C., Clark, D., Waghorn, G. (2013). Supplementing lactating dairy cows fed high-quality pasture with black wattle (Acacia mearnsii) tannin. Animal, 7(11), 1789-1795. [More Information]
  • Gregorini, P., DelaRue, B., McLeod, K., Clark, C., Glassey, C., Jago, J. (2012). Rumination behavior of grazing dairy cows in response to restricted time at pasture. Livestock Science, 146(1), 95-98. [More Information]
  • Gregorini, P., Clark, C., McLeod, K., Glassey, C., Romera, A., Jago, J. (2011). Short Communication: Feeding station behavior of grazing dairy cows in response to restriction of time at pasture. Livestock Science, 137(1), 287-291. [More Information]
  • Clark, C., McLeod, K., Glassey, C., Gregorini, P., Costall, D., Betteridge, K., Jago, J. (2010). Capturing urine while maintaining pasture intake, milk production, and animal welfare of dairy cows in early and late lactation. Journal of Dairy Science, 93(5), 2280-2286. [More Information]
  • Clark, C., Romera, A., Macdonald, K., Clark, D. (2010). Inter-paddock annual dry matter yield variability for dairy farms in the Waikato region of New Zealand. New Zealand Journal of Agricultural Research, 53(2), 187-191. [More Information]
  • Romera, A., Beukes, P., Clark, C., Clark, D., Levy, H., Tait, A. (2010). Use of a pasture growth model to estimate herbage mass at a paddock scale and assist management on dairy farms. Computers and Electronics in Agriculture, 74(1), 66-72. [More Information]
  • Gregorini, P., Clark, C., Jago, J., Glassey, C., McLeod, K., Romera, A. (2009). Restricting time at pasture: Effects on dairy cow herbage intake, foraging behavior, hunger-related hormones, and metabolite concentration during the first grazing session. Journal of Dairy Science, 92(9), 4572-4580. [More Information]
  • Fulkerson, W., Neal, J., Clark, C., Horadagoda, A., Nandra, K., Barchia, I. (2007). Nutritive value of forage species grown in the warm temperate climate of Australia for dairy cows: Grasses and legumes. Livestock Science, 107, 253-264.
  • Fulkerson, W., Nandra, K., Clark, C., Barchia, I. (2006). Effect of cereal-based concentrates on productivity of Holstein-Friesian cows grazing short-rotation ryegrass (Lolium multiflorum) or kikuyu (Pennesitum clandestinum) pastures. Livestock Science, 103(1/2), 85-94.
  • Clark, C., Fulkerson, W., Nandra, K., Smith, H., Macmillian, K. (2006). Pattern of change in the concentration of milk acetone and its association with ovarian activity for pasture-based cows in early lactation. Livestock Science, 105(3), 144-150.
  • Clark, C., Fulkerson, W., Nandra, K., Barchia, I., Macmillan, K. (2005). Erratum to "The use of indicators to assess the degree of mobilisation of body reserves in dairy cows in early lactation on a pasture-based diet"[Livest. Prod. Sci. 94 (2005) 199–211]. Livestock Science, 100(2), 276-276.
  • Clark, C., Fulkerson, W., Nandra, K., Barchia, I., Macmillian, K. (2005). The use of indicators to assess the degree of mobilisation of body reserves in Dairy cows in early lactation on a pasture-based diet. Livestock Science, 94(3), 199-211.

Conferences

  • Clark, C. (2014). Dairy farmer Z. Dairy Research Foundation Symposium, Australia: N/A.
  • Talukder, S., Kerrisk (nee Davis), K., Clark, C., Garcia, S., Celi, P. (2014). Rumination patterns and locomotion activity in a dairy cow diagnosed with left displaced abomasum (LDA): A case report. Dairy Research Foundation Symposium, Australia: N/A.
  • Scott, B., Camacho, A., Clark, C., Golder, H., Molfino, J., Kerrisk (nee Davis), K., Lean, I., Garcia, S., Chaves, A., Hall, E. (2014). The impact of milking order on the quality and quantity of pasture accessed. Dairy Research Foundation Symposium, Australia: N/A.
  • Clark, C., Garcia, S., Kerrisk (nee Davis), K., Underwood, J., Nieto, J., Calleija, M., Sukkarieh, S., Cronin, G. (2013). A robot amongst the herd: A pilot investigation regarding the behavioural response of dairy cows. 4th Australian and New Zealand Spatially Enabled Livestock Management Symposium, Camden, New South Wales, Australia.
  • Underwood, J., Calleija, M., Nieto, J., Sukkarieh, S., Clark, C., Garcia, S., Kerrisk (nee Davis), K., Cronin, G. (2013). A robot amongst the herd: remote detection and tracking of cows. 4th Australian and New Zealand Spatially Enabled Livestock Management Symposium, Camden, New South Wales, Australia.
  • Garcia, S., Clark, C., Kerrisk (nee Davis), K., Islam, M., Farina, S., Evans, J. (2013). Gaps and variability in pasture utilisation in Australian pasture-based dairy systems. 22nd International Grasslands Congress, Orange: New South Wales Department of Primary Industry.
  • Horadagoda, A., Clark, C., Kerrisk (nee Davis), K., Islam, M., Kaur Jhajj, R., Garcia, S. (2013). Grazing behaviour of dairy cows when grazing forage rape in a pasture-based automatic milking system. 22nd International Grasslands Congress, Orange: New South Wales Department of Primary Industry.
  • Minnee, E., Clark, C., Clark, D. (2013). Herbage production from five grazable forages. 75th Conference of the New Zealand Grassland Association, Tauranga: New Zealand Grassland Association (Inc).
  • Clark, C., Islam, M., Horadagoda, A., Kaur Jhajj, R., Garcia, S., Kerrisk (nee Davis), K. (2013). Increasing feed conversion efficiency in automatic milking systems: The impact of grain-based concentrate allocation and kikuyu (Pennisetum clandestinum) pasture state on kikuyu pasture digestibility. 22nd International Grasslands Congress, Orange: New South Wales Department of Primary Industry.
  • Kaur Jhajj, R., Clark, C., Horadagoda, A., Golder, H., Garcia, S., Kerrisk (nee Davis), K., Islam, M. (2013). Increasing feed conversion efficiency in automatic milking systems: The impact of grain-based concentrate allocation and kikuyu (Pennisetum clandestinum) pasture state on milk production in an automatic milking system. 22nd International Grasslands Congress, Orange: New South Wales Department of Primary Industry.
  • Kaur Jhajj, R., Clark, C., Horadagoda, A., Golder, H., Garcia, S., Kerrisk (nee Davis), K., Islam, M. (2013). Increasing feed conversion efficiency in automatic milking systems: The impact of grain-based concentrate allocation and kikuyu (Pennisetum clandestinum) pasture state on milk production in an automatic milking system. 22nd International Grasslands Congress, Orange: New South Wales Department of Primary Industry.
  • Garcia, S., Islam, M., Clark, C. (2013). Kikuyu for dairy production. Invited paper. Perennial Grasses in Pasture Production Systems.
  • Islam, M., Clark, C., Kerrisk (nee Davis), K., Garcia, S., Lyons, N. (2013). Land areas required, associated walking distance and milking interval for large herds in pasture based automatic milking system. The Proceedings of Precision Dairy and Expo, Minnesota.
  • Islam, M., Garcia, S., Clark, C., Kerrisk (nee Davis), K. (2013). System fitness of grazeable forages for large herds in automatic milking systems. 22nd International Grasslands Congress, Orange: New South Wales Department of Primary Industry.
  • Clark, C. (2013). What are we feeding to our cows? Current topics in Dairy Production Volume 18, Camden: N/A.
  • Minnee, E., Clark, C., McAllister, T., Hutchinson, K., Lee, J. (2012). Chicory and plantain as feeds for dairy cows in late lactation. 5th Australasian Dairy Science Symposium 2012, Melbourne: Australasian Dairy Science Symposium.
  • Lee, J., Hemmingson, N., Minnee, E., Clark, C. (2012). Chicory and plantain management strategies to increase herbage dry matter yield, nutritive value and plant survival. 5th Australasian Dairy Science Symposium 2012, Melbourne: Australasian Dairy Science Symposium.
  • Horadagoda, A., Garcia, S., Islam, M., Kaur Jhajj, R., Clark, C. (2012). Grazing preferences of forages by dairy cows in different seasons. 5th Australasian Dairy Science Symposium 2012, Melbourne: Australasian Dairy Science Symposium.
  • Tozer, K., Cameron, C., Clark, C., Lee, J. (2012). Impact of lax and intense grazing on chicory utilisation and survival. 5th Australasian Dairy Science Symposium 2012, Melbourne: Australasian Dairy Science Symposium.
  • Clark, C., Waghorn, G., Gregorini, P., Woodward, S., Clark, D. (2011). Diurnal pattern of urinary and faecal nitrogen excretion by dairy cows fed ryegrass pasture twice daily indoors. 8th International Symposium on the Nutrition of Herbivores, Aberystwyth, Wales: Institute of Biological, Environmental and Rural Sciences.
  • Clark, C., Clark, D., Waugh, C., Roach, C., Glassey, C., Woodward, S., Minnee, E., Woodfield, D. (2010). Systems to increase grazeable forage production in the Waikato: A progress report on the tall fescue and perennial ryegrass component of these systems. 72nd Conference of the New Zealand Grassland Association (2010), Lincoln: New Zealand Grassland Association (Inc).
  • Clark, C., Macdonald, K., Dalley, D. (2009). Stocking Rate and Calving Date Decisions for Dairy Farmers. South Island Dairy Event, New Zealand.
  • McLeod, K., Clark, C., Glassey, C., Gregorini, P., Costall, D., Betteridge, K., Jago, J. (2009). Strategically reducing time on pasture: Dairy cow intake, production, welfare, and excretory behaviour. 69th New Zealand Society of Animal Production Annual Conference NZSAP 2009, Canterbury: New Zealand Society of Animal Production.
  • Romera, A., Clark, C. (2008). Paddock to paddock pasture yield variation on dairy farms in the Waikato region of New Zealand. Joint XXI International Grassland Congress / VIII International Rangeland Congress Conference IGC/IRC 2008, China: Guangdong Peoples Publishing House.
  • Beukes, P., Clark, C., Romera, A., Levy, G., Lee, J. (2008). Using a climate-driven farm model to predict pasture mass for individual paddocks on New Zealand dairy farms. 70th Conference of the New Zealand Grassland Association (2008), Dunedin: New Zealand Grassland Association (Inc).
  • Phyn, C., Clark, C., Kolver, E. (2007). Extending lactation to 670 days. South Island Dairy Event (2007), Canterbury, New Zealand.
  • Clark, C., Clark, D., Fulkerson, W. (2007). Feed Conversion efficiency and genotype by environment interaction: matching a cow with high feed conversion efficiency to a low input, pasture based environment. 3rd Australasian Dairy Science Symposium 2007, Australia: National Dairy Alliance.
  • Clark, C., Fulkerson, W., Nandra, K., Dove, H. (2004). Estimating pasture intake using n-alkanes and known supplement intake. 25th Biennial Conference of the Australian Society of Animal Production, Melbourne, Australia: CSIRO Publishing.
  • Clark, C., Fulkerson, W., Nandra, K. (2004). The Effect of Cereal Grain-Based Supplements on Blood B-hydroxyl-butyrate concentrations in dairy cows in a pasture-based system. 25th Biennial Conference of the Australian Society of Animal Production, Melbourne, Australia: CSIRO Publishing.

Other

  • Clark, C. (2006), Identifying indicators of energy balance for pasture based dairy cows in early lactation.

2014

  • Clark, C. (2014). Dairy farmer Z. Dairy Research Foundation Symposium, Australia: N/A.
  • Clark, C., Kwinten, N., van Gastel, D., Kerrisk (nee Davis), K., Lyons, N., Garcia, S. (2014). Differences in Voluntary Cow Traffic between Holstein and Illawarra Breeds of Dairy Cattle in a Pasture-based Automatic Milking System. Asian - Australasian Journal of Animal Sciences, 27(4), 587-591. [More Information]
  • Clark, C., Horadagoda, A., Kerrisk (nee Davis), K., Scott, V., Islam, M., Kaur Jhajj, R., Garcia, S. (2014). Grazing Soybean to Increase Voluntary Cow Traffic in a Pasture-based Automatic Milking System. Asian - Australasian Journal of Animal Sciences, 27(3), 422-430. [More Information]
  • Garcia, S., Islam, M., Clark, C., Martin, P. (2014). Kikuyu-based pasture for dairy production: a review. Crop and Pasture Science, 65(8), 787-797. [More Information]
  • Clark, C., Mitchell, M., Islam, M., Jacobs, B. (2014). Phosphorus content of the soil influences the growth and productivity of Themeda triandra Forssk. and Microlaena stipoides (Labill.) R.Br. Rangeland Journal, 36, 233-237.
  • Talukder, S., Kerrisk (nee Davis), K., Clark, C., Garcia, S., Celi, P. (2014). Rumination patterns and locomotion activity in a dairy cow diagnosed with left displaced abomasum (LDA): A case report. Dairy Research Foundation Symposium, Australia: N/A.
  • Scott, B., Camacho, A., Clark, C., Golder, H., Molfino, J., Kerrisk (nee Davis), K., Lean, I., Garcia, S., Chaves, A., Hall, E. (2014). The impact of milking order on the quality and quantity of pasture accessed. Dairy Research Foundation Symposium, Australia: N/A.

2013

  • Clark, C., Garcia, S., Kerrisk (nee Davis), K., Underwood, J., Nieto, J., Calleija, M., Sukkarieh, S., Cronin, G. (2013). A robot amongst the herd: A pilot investigation regarding the behavioural response of dairy cows. 4th Australian and New Zealand Spatially Enabled Livestock Management Symposium, Camden, New South Wales, Australia.
  • Underwood, J., Calleija, M., Nieto, J., Sukkarieh, S., Clark, C., Garcia, S., Kerrisk (nee Davis), K., Cronin, G. (2013). A robot amongst the herd: remote detection and tracking of cows. 4th Australian and New Zealand Spatially Enabled Livestock Management Symposium, Camden, New South Wales, Australia.
  • Garcia, S., Clark, C., Kerrisk (nee Davis), K., Islam, M., Farina, S., Evans, J. (2013). Gaps and variability in pasture utilisation in Australian pasture-based dairy systems. 22nd International Grasslands Congress, Orange: New South Wales Department of Primary Industry.
  • Horadagoda, A., Clark, C., Kerrisk (nee Davis), K., Islam, M., Kaur Jhajj, R., Garcia, S. (2013). Grazing behaviour of dairy cows when grazing forage rape in a pasture-based automatic milking system. 22nd International Grasslands Congress, Orange: New South Wales Department of Primary Industry.
  • Minnee, E., Clark, C., Clark, D. (2013). Herbage production from five grazable forages. 75th Conference of the New Zealand Grassland Association, Tauranga: New Zealand Grassland Association (Inc).
  • Glassey, C., Clark, C., Roach, C., Lee, J. (2013). Herbicide application and direct drilling improves establishment and yield of chicory and plantain. Grass and Forage Science, 68(1), 178-185. [More Information]
  • Clark, C., Islam, M., Horadagoda, A., Kaur Jhajj, R., Garcia, S., Kerrisk (nee Davis), K. (2013). Increasing feed conversion efficiency in automatic milking systems: The impact of grain-based concentrate allocation and kikuyu (Pennisetum clandestinum) pasture state on kikuyu pasture digestibility. 22nd International Grasslands Congress, Orange: New South Wales Department of Primary Industry.
  • Kaur Jhajj, R., Clark, C., Horadagoda, A., Golder, H., Garcia, S., Kerrisk (nee Davis), K., Islam, M. (2013). Increasing feed conversion efficiency in automatic milking systems: The impact of grain-based concentrate allocation and kikuyu (Pennisetum clandestinum) pasture state on milk production in an automatic milking system. 22nd International Grasslands Congress, Orange: New South Wales Department of Primary Industry.
  • Kaur Jhajj, R., Clark, C., Horadagoda, A., Golder, H., Garcia, S., Kerrisk (nee Davis), K., Islam, M. (2013). Increasing feed conversion efficiency in automatic milking systems: The impact of grain-based concentrate allocation and kikuyu (Pennisetum clandestinum) pasture state on milk production in an automatic milking system. 22nd International Grasslands Congress, Orange: New South Wales Department of Primary Industry.
  • Garcia, S., Islam, M., Clark, C. (2013). Kikuyu for dairy production. Invited paper. Perennial Grasses in Pasture Production Systems.
  • Islam, M., Clark, C., Kerrisk (nee Davis), K., Garcia, S., Lyons, N. (2013). Land areas required, associated walking distance and milking interval for large herds in pasture based automatic milking system. The Proceedings of Precision Dairy and Expo, Minnesota.
  • Romera, A., Beukes, P., Clark, D., Clark, C., Tait, A. (2013). Pasture growth model to assist management on dairy farms: Testing the concept with farmers. Grassland Science, 59, 20-29. [More Information]
  • Griffiths, W., Clark, C., Clark, D., Waghorn, G. (2013). Supplementing lactating dairy cows fed high-quality pasture with black wattle (Acacia mearnsii) tannin. Animal, 7(11), 1789-1795. [More Information]
  • Islam, M., Garcia, S., Clark, C., Kerrisk (nee Davis), K. (2013). System fitness of grazeable forages for large herds in automatic milking systems. 22nd International Grasslands Congress, Orange: New South Wales Department of Primary Industry.
  • Clark, C. (2013). What are we feeding to our cows? Current topics in Dairy Production Volume 18, Camden: N/A.

2012

  • Minnee, E., Clark, C., McAllister, T., Hutchinson, K., Lee, J. (2012). Chicory and plantain as feeds for dairy cows in late lactation. 5th Australasian Dairy Science Symposium 2012, Melbourne: Australasian Dairy Science Symposium.
  • Lee, J., Hemmingson, N., Minnee, E., Clark, C. (2012). Chicory and plantain management strategies to increase herbage dry matter yield, nutritive value and plant survival. 5th Australasian Dairy Science Symposium 2012, Melbourne: Australasian Dairy Science Symposium.
  • Horadagoda, A., Garcia, S., Islam, M., Kaur Jhajj, R., Clark, C. (2012). Grazing preferences of forages by dairy cows in different seasons. 5th Australasian Dairy Science Symposium 2012, Melbourne: Australasian Dairy Science Symposium.
  • Tozer, K., Cameron, C., Clark, C., Lee, J. (2012). Impact of lax and intense grazing on chicory utilisation and survival. 5th Australasian Dairy Science Symposium 2012, Melbourne: Australasian Dairy Science Symposium.
  • Gregorini, P., DelaRue, B., McLeod, K., Clark, C., Glassey, C., Jago, J. (2012). Rumination behavior of grazing dairy cows in response to restricted time at pasture. Livestock Science, 146(1), 95-98. [More Information]

2011

  • Clark, C., Waghorn, G., Gregorini, P., Woodward, S., Clark, D. (2011). Diurnal pattern of urinary and faecal nitrogen excretion by dairy cows fed ryegrass pasture twice daily indoors. 8th International Symposium on the Nutrition of Herbivores, Aberystwyth, Wales: Institute of Biological, Environmental and Rural Sciences.
  • Gregorini, P., Clark, C., McLeod, K., Glassey, C., Romera, A., Jago, J. (2011). Short Communication: Feeding station behavior of grazing dairy cows in response to restriction of time at pasture. Livestock Science, 137(1), 287-291. [More Information]

2010

  • Clark, C., McLeod, K., Glassey, C., Gregorini, P., Costall, D., Betteridge, K., Jago, J. (2010). Capturing urine while maintaining pasture intake, milk production, and animal welfare of dairy cows in early and late lactation. Journal of Dairy Science, 93(5), 2280-2286. [More Information]
  • Clark, C., Romera, A., Macdonald, K., Clark, D. (2010). Inter-paddock annual dry matter yield variability for dairy farms in the Waikato region of New Zealand. New Zealand Journal of Agricultural Research, 53(2), 187-191. [More Information]
  • Clark, C., Clark, D., Waugh, C., Roach, C., Glassey, C., Woodward, S., Minnee, E., Woodfield, D. (2010). Systems to increase grazeable forage production in the Waikato: A progress report on the tall fescue and perennial ryegrass component of these systems. 72nd Conference of the New Zealand Grassland Association (2010), Lincoln: New Zealand Grassland Association (Inc).
  • Romera, A., Beukes, P., Clark, C., Clark, D., Levy, H., Tait, A. (2010). Use of a pasture growth model to estimate herbage mass at a paddock scale and assist management on dairy farms. Computers and Electronics in Agriculture, 74(1), 66-72. [More Information]

2009

  • Gregorini, P., Clark, C., Jago, J., Glassey, C., McLeod, K., Romera, A. (2009). Restricting time at pasture: Effects on dairy cow herbage intake, foraging behavior, hunger-related hormones, and metabolite concentration during the first grazing session. Journal of Dairy Science, 92(9), 4572-4580. [More Information]
  • Clark, C., Macdonald, K., Dalley, D. (2009). Stocking Rate and Calving Date Decisions for Dairy Farmers. South Island Dairy Event, New Zealand.
  • McLeod, K., Clark, C., Glassey, C., Gregorini, P., Costall, D., Betteridge, K., Jago, J. (2009). Strategically reducing time on pasture: Dairy cow intake, production, welfare, and excretory behaviour. 69th New Zealand Society of Animal Production Annual Conference NZSAP 2009, Canterbury: New Zealand Society of Animal Production.

2008

  • Romera, A., Clark, C. (2008). Paddock to paddock pasture yield variation on dairy farms in the Waikato region of New Zealand. Joint XXI International Grassland Congress / VIII International Rangeland Congress Conference IGC/IRC 2008, China: Guangdong Peoples Publishing House.
  • Beukes, P., Clark, C., Romera, A., Levy, G., Lee, J. (2008). Using a climate-driven farm model to predict pasture mass for individual paddocks on New Zealand dairy farms. 70th Conference of the New Zealand Grassland Association (2008), Dunedin: New Zealand Grassland Association (Inc).

2007

  • Phyn, C., Clark, C., Kolver, E. (2007). Extending lactation to 670 days. South Island Dairy Event (2007), Canterbury, New Zealand.
  • Clark, C., Clark, D., Fulkerson, W. (2007). Feed Conversion efficiency and genotype by environment interaction: matching a cow with high feed conversion efficiency to a low input, pasture based environment. 3rd Australasian Dairy Science Symposium 2007, Australia: National Dairy Alliance.
  • Fulkerson, W., Neal, J., Clark, C., Horadagoda, A., Nandra, K., Barchia, I. (2007). Nutritive value of forage species grown in the warm temperate climate of Australia for dairy cows: Grasses and legumes. Livestock Science, 107, 253-264.

2006

  • Fulkerson, W., Nandra, K., Clark, C., Barchia, I. (2006). Effect of cereal-based concentrates on productivity of Holstein-Friesian cows grazing short-rotation ryegrass (Lolium multiflorum) or kikuyu (Pennesitum clandestinum) pastures. Livestock Science, 103(1/2), 85-94.
  • Clark, C. (2006), Identifying indicators of energy balance for pasture based dairy cows in early lactation.
  • Clark, C., Fulkerson, W., Nandra, K., Smith, H., Macmillian, K. (2006). Pattern of change in the concentration of milk acetone and its association with ovarian activity for pasture-based cows in early lactation. Livestock Science, 105(3), 144-150.

2005

  • Clark, C., Fulkerson, W., Nandra, K., Barchia, I., Macmillan, K. (2005). Erratum to "The use of indicators to assess the degree of mobilisation of body reserves in dairy cows in early lactation on a pasture-based diet"[Livest. Prod. Sci. 94 (2005) 199–211]. Livestock Science, 100(2), 276-276.
  • Clark, C., Fulkerson, W., Nandra, K., Barchia, I., Macmillian, K. (2005). The use of indicators to assess the degree of mobilisation of body reserves in Dairy cows in early lactation on a pasture-based diet. Livestock Science, 94(3), 199-211.

2004

  • Clark, C., Fulkerson, W., Nandra, K., Dove, H. (2004). Estimating pasture intake using n-alkanes and known supplement intake. 25th Biennial Conference of the Australian Society of Animal Production, Melbourne, Australia: CSIRO Publishing.
  • Clark, C., Fulkerson, W., Nandra, K. (2004). The Effect of Cereal Grain-Based Supplements on Blood B-hydroxyl-butyrate concentrations in dairy cows in a pasture-based system. 25th Biennial Conference of the Australian Society of Animal Production, Melbourne, Australia: CSIRO Publishing.

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