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Associate Professor Tim Wester staff profile picture

Contact details +6469518258

Associate Professor Tim Wester BS, MSc, PhD

Associate Professor in Animal Nutrition and Metabolism

Doctoral Mentor Supervisor
School of Agriculture and Environment

Originally from West Allis, Wisconsin in the USA, I received a BS-Agriculture with a chemistry minor from the University of Wisconsin--River Falls. I then studied ruminant nutrition at the University of Nebraska, Lincoln where I was awarded an MS and PhD. From there, I was a postdoctoral fellow with Dr Doug Burrin at the USDA/ARS Children’s Nutrition Research Center, Baylor College of Medicine in Houston, Texas. At Baylor I used the newborn pig model to examine the influence of growth hormone and diet on circulating hormones and protein synthesis in the neonate.  In 1996, I took up a postdoctoral position in Aberdeen, Scotland working at the University of Aberdeen and the Rowett Research Institute with Dr Gerald Lobley. While there, I used stable isotopes to study amino acid kinetics and protein metabolism in sheep.

I was hired as a Research Officer in the Institute of Food, Nutrition and Human Health in 2000. I moved to the Institute of Veterinary, Animal and Biomedical Sciences, and am now with the Monogastric Research Centre in the School of Agriculture and Environment. Since coming to Massey, I’ve explored nutrient utilisation by animals at various levels, from effects of feed and processing, to metabolism of nutrients within the body. I’ve collaborated with other scientists in many species, including seals, dogs, pigs, chickens, crocodiles, dairy cows, and domestic cats. I am curently the resaeach leader for Poultry Nutrition.

I hold a BS-Agriculture from the University of Wisconsin-River Falls, and MS and PhD from the University of Nebraska-Lincoln. I came to Massey in 2000 after postdocs in the US and Scotland. My expertise is in the effects of feed form and diet composition on nutrient digestion and metabolism. I've worked in many species including sheep, cows, crocodiles, and cats. I currently lead the Poultry Nutrition Research Team.

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Professional

Contact details

  • Ph: 06 951 8258
    Location: 3.52, AgHort A
    Campus: Manawatu

Qualifications

  • Bachelor of Science - University of Wisconsin--River Falls (1986)
  • Master of Science - University of Nebraska-Lincoln (1989)
  • Doctor of Philosophy - University of Nebraska, Lincoln (1994)

Certifications and Registrations

  • Licence, Mentor Supervisor, 黑料网

Research Expertise

Research Interests

Poultry Nutrition

Feed Processing

Animal Nutrition and Physiology

Protein Metabolism

Macronutrient Metabolism

Thematics

Future Food Systems

Area of Expertise

Field of research codes
Agricultural And Veterinary Sciences (070000): Animal Growth and Development (070202): Animal Management (070203): Animal Nutrition (070204):
Animal Physiology - Systems (060603):
Animal Production (070200):
Biochemistry and Cell Biology (060100): Biological Sciences (060000): Comparative Physiology (060604): Physiology (060600)

Keywords

Poultry Nutrition, Feed Processing,Protein Metabolism, Macronutrient Metabolism, Stable Isotopes,  Companion Animals

Research Outputs

Journal

Nguyen, TT., Chidgey, KL., Wester, TJ., Schreurs, NM., & Morel, PCH. (2024). Using poultry by-product meal to replace soybean meal in grower -finisher pig diets. Animal Feed Science and Technology. 313
[Journal article]Authored by: Chidgey, K., Morel, P., Schreurs, N., Wester, T.
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Thiruchchenthuran, S., Lopez-Villalobos, N., Zaefarian, F., Abdollahi, MR., Wester, TJ., Pedersen, NB., . . . Morel, PCH. (2024). Evaluation of equations for predicting ileal nutrient digestibility and digestible nutrient content of broiler diets based on their gross chemical composition. Animal Feed Science and Technology. 312
[Journal article]Authored by: Lopez-Villalobos, N., Morel, P., Wester, T.
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Barua, M., Abdollahi, MR., Zaefarian, F., Wester, TJ., Girish, CK., Chrystal, PV., . . . Ravindran, V. (2024). Effect of age on the standardized ileal amino acid digestibility of soybean meal and canola meal in broilers. Animal Nutrition. 16, 11-22
[Journal article]Authored by: Wester, T.
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Perera, WNU., Abdollahi, MR., Zaefarian, F., Wester, TJ., & Ravindran, V. (2023). Influence of partial replacement of ground barley with whole barley and exogenous enzyme supplementation in pelleted diets on growth performance, nutrient utilisation and foregut development in broiler starters. Animal Feed Science and Technology. 304
[Journal article]Authored by: Wester, T.
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Leung, YB., Cave, N., & Wester, TJ. (2023). Loss of body weight and lean mass in long-stay, hospitalized canine patients. Journal of Animal Physiology and Animal Nutrition. 107(6), 1444-1455
[Journal article]Authored by: Wester, T.
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Nguyen, TT., Olumodeji, SG., Chidgey, KL., Wester, TJ., Realini, CE., & Morel, PCH. (2023). Increasing sustainability in pork production by using high inclusion levels of co-products distillers dried grains with solubles, wheat middling and canola meal doesn’t affect pig growth performance and meat quality but reduces boar taint. Animal Bioscience. 36(7), 1091-1100
[Journal article]Authored by: Chidgey, K., Morel, P., Wester, T.
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Perera, WNU., Abdollahi, MR., Zaefarian, F., Wester, TJ., & Ravindran, V. (2022). Barley, an Undervalued Cereal for Poultry Diets: Limitations and Opportunities. Animals. 12(19)
[Journal article]Authored by: Wester, T.
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Nguyen, TT., Chidgey, KL., Wester, TJ., & Morel, PCH. (2022). Provision of lucerne in the diet or as a manipulable enrichment material enhances feed efficiency and welfare status for growing-finishing pigs. Livestock Science. 264
[Journal article]Authored by: Chidgey, K., Morel, P., Wester, T.
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Barua, M., Abdollahi, MR., Zaefarian, F., Wester, TJ., Girish, CK., Chrystal, PV., . . . Ravindran, V. (2021). Influence of age on the standardized ileal amino acid digestibility of corn and barley in broilers. Animals. 11(12)
[Journal article]Authored by: Wester, T.
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Barua, M., Abdollahi, MR., Zaefarian, F., Wester, TJ., Girish, CK., Chrystal, PV., . . . Ravindran, V. (2021). An investigation into the influence of age on the standardized amino acid digestibility of wheat and sorghum in broilers. Poultry Science. 100(11)
[Journal article]Authored by: Wester, T.
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Perera, WNU., Abdollahi, MR., Zaefarian, F., Wester, TJ., & Ravindran, V. (2021). High steam-conditioning temperature during the pelleting process impairs growth performance and nutrient utilization in broiler starters fed barley-based diets, regardless of carbohydrase supplementation. Poultry Science. 100(8)
[Journal article]Authored by: Wester, T.
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Barua, M., Abdollahi, MR., Zaefarian, F., Wester, TJ., Girish, CK., Chrystal, PV., . . . Ravindran, V. (2021). Basal ileal endogenous amino acid flow in broiler chickens as influenced by age. Poultry Science. 100(8)
[Journal article]Authored by: Wester, T.
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Barua, M., Abdollahi, MR., Zaefarian, F., Wester, TJ., Girish, CK., & Ravindran, V. (2021). Influence of feed form on the standardised ileal amino acid digestibility of common grains for broiler chickens. Animal Feed Science and Technology. 272
[Journal article]Authored by: Wester, T.
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Barua, M., Abdollahi, MR., Zaefarian, F., Wester, TJ., Girish, CK., & Ravindran, V. (2020). Standardized ileal amino acid digestibility of protein sources for broiler chickens is influenced by the feed form. Poultry Science. 99(12), 6925-6934
[Journal article]Authored by: Wester, T.
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Perera, WNU., Abdollahi, MR., Zaefarian, F., Wester, TJ., & Ravindran, V. (2020). The interactive influence of barley particle size and enzyme supplementation on growth performance, nutrient utilization, and intestinal morphometry of broiler starters. Poultry Science. 99(9), 4466-4478
[Journal article]Authored by: Wester, T.
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Perera, WNU., Abdollahi, MR., Zaefarian, F., Wester, TJ., & Ravindran, V. (2020). The effect of graded inclusions of waxy starch hull-less barley and a multi-component exogenous carbohydrase on the growth performance, nutrient digestibility and intestinal morphometry of broiler chickens. British Poultry Science. 61(4), 442-453
[Journal article]Authored by: Wester, T.
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Leung, YB., Cave, NJ., Heiser, A., Edwards, PJB., Godfrey, AJR., & Wester, T. (2020). Metabolic and Immunological Effects of Intermittent Fasting on a Ketogenic Diet Containing Medium-Chain Triglycerides in Healthy Dogs. Frontiers in Veterinary Science. 6
[Journal article]Authored by: Edwards, P., Godfrey, A., Wester, T.
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Perera, WNU., Abdollahi, MR., Zaefarian, F., Wester, TJ., Ravindran, G., & Ravindran, V. (2019). Influence of inclusion level of barley in wheat-based diets and supplementation of carbohydrase on growth performance, nutrient utilisation and gut morphometry in broiler starters. British Poultry Science. 60(6), 736-748
[Journal article]Authored by: Wester, T.
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Perera, WNU., Abdollahi, MR., Ravindran, V., Zaefarian, F., Wester, TJ., & Ravindran, G. (2019). Nutritional evaluation of two barley cultivars, without and with carbohydrase supplementation, for broilers: metabolisable energy and standardised amino acid digestibility. British Poultry Science. 60(4), 404-413
[Journal article]Authored by: Wester, T.
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Rattanasomboon, T., Wester, TJ., Smith, SL., & Morel, PCH. (2019). Nutritive value of plantain and chicory for pigs. Livestock Science. 223, 8-15
[Journal article]Authored by: Morel, P., Wester, T.
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Francis, M., Morel, PCH., Wilkinson, BHP., & Wester, TJ. (2017). Alginate increases water stability whilst maintaining diet digestibility in farmed saltwater crocodiles (Crocodylus porosus). Journal of Animal Science. 95(2), 820-826
[Journal article]Authored by: Morel, P., Wester, T.
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Schwendel, BH., Wester, TJ., Morel, PCH., Fong, B., Tavendale, MH., Deadman, C., . . . Otter, DE. (2017). Pasture feeding conventional cows removes differences between organic and conventionally produced milk. Food Chemistry. 229, 805-813
[Journal article]Authored by: Morel, P., Shadbolt, N., Wester, T.
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Wester, TJ., Weidgraaf, K., Hekman, M., Ugarte, CE., Forsyth, SF., & Tavendale, MH. (2015). Amino acid oxidation increases with dietary protein content in adult neutered male cats as measured using [1-<sup>13</sup>C]leucine and [<sup>15</sup>N<inf>2</inf>]urea. Journal of Nutrition. 145(11), 2471-2478
[Journal article]Authored by: Hekman, M., Weidgraaf, K., Wester, T.
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Wester, TJ., Kraft, G., Dardevet, D., Polakof, S., Ortigues-Marty, I., Rémond, D., . . . Savary-Auzeloux, I. (2015). Nutritional regulation of the anabolic fate of amino acids within the liver in mammals: Concepts arising from in vivo studies. Nutrition Research Reviews. 28(1), 22-41
[Journal article]Authored by: Wester, T.
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Schwendel, BH., Wester, TJ., Morel, PCH., Tavendale, MH., Deadman, C., Shadbolt, NM., . . . Otter, DE. (2015). Corrigendum to "Invited review: Organic and conventionally produced milk-An evaluation of influence factors on milk composition" [J. Dairy Sci. 98, (2015) 721-746]. Journal of Dairy Science. 98(4), 2831
[Journal article]Authored by: Morel, P., Shadbolt, N., Wester, T.
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Schwendel, BH., Wester, TJ., Morel, PCH., Tavendale, MH., Deadman, C., Shadbolt, NM., . . . Otter, DE. (2015). Invited review: Organic and conventionally produced milk-An evaluation of factors influencing milk composition. Journal of Dairy Science. 98(2), 721-746
[Journal article]Authored by: Morel, P., Shadbolt, N., Wester, T.
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Schwendel, BH., Morel, PCH., Wester, TJ., Tavendale, MH., Deadman, C., Fong, B., . . . Otter, DE. (2014). Fatty acid profile differs between organic and conventionally produced cow milk independent of season or milking time. Journal of Dairy Science.
[Journal article]Authored by: Morel, P., Shadbolt, N., Wester, T.
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Schwendel, BH., Wester, TJ., Morel, PCH., Tavendale, MH., Deadman, C., Shadbolt, NM., . . . Otter, DE. (2014). Invited review: Organic and conventionally produced milk-An evaluation of influence factors on milk composition. Journal of Dairy Science.
[Journal article]Authored by: Morel, P., Shadbolt, N., Wester, T.
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Singh, Y., Ravindran, V., Wester, TJ., Molan, AL., & Ravindran, G. (2014). Influence of prepelleting inclusion of whole corn on performance, nutrient utilization, digestive tract measurements, and cecal microbiota of young broilers. Poultry Science. 93(12), 3073-3082
[Journal article]Authored by: Wester, T.
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Singh, Y., Ravindran, V., Wester, TJ., Molan, AL., & Ravindran, G. (2014). Influence of feeding coarse corn on performance, nutrient utilization, digestive tract measurements, carcass characteristics, and cecal microflora counts of broilers. Poultry Science. 93(3), 607-616
[Journal article]Authored by: Wester, T.
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Singh, Y., Ravindran, V., Wester, TJ., Molan, AL., & Ravindran, G. (2014). Influence of feeding coarse corn on performance, nutrient utilization, digestive tract measurements, carcass characteristics, and cecal microflora counts of broilers. Poultry Science. 93(3), 607-616
[Journal article]Authored by: Wester, T.
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Abdollahi, MR., Ravindran, VR., Wester, T., Ravindran, GR., & Thomas, DV. (2013). Influence of pellet diameter and length on the quality of pellets and, performance, nutrient utilisation and digestive tract development of broilers fed wheat-based diets. British Poultry Science. 54(3), 337-345 Retrieved from http://www.tandfonline.com/doi/abs/10.1080/00071668.2013.780285
[Journal article]Authored by: Wester, T.
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Abdollahi, MR., Ravindran, V., Wester, TJ., Ravindran, G., & Thomas, DV. (2013). Influence of pellet diameter and length on the quality of pellets and performance, nutrient utilisation and digestive tract development of broilers fed on wheat-based diets. British Poultry Science. 54(3), 337-345
[Journal article]Authored by: Wester, T.
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Abdollahi, MR., Ravindran, V., Wester, TJ., Ravindran, G., & Thomas, DV. (2013). The effect of manipulation of pellet size (diameter and length) on pellet quality and performance, apparent metabolisable energy and ileal nutrient digestibility in broilers fed maize-based diets. Animal Production Science. 53(2), 114-120
[Journal article]Authored by: Wester, T.
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Abdollahi, MR., Ravindran, V., Wester, TJ., Ravindran, G., & Thomas, DV. (2012). Effect of improved pellet quality from the addition of a pellet binder and/or moisture to a wheat-based diet conditioned at two different temperatures on performance, apparent metabolisable energy and ileal digestibility of starch and nitrogen in broilers. Animal Feed Science and Technology.. 175(3-4), 150-157
[Journal article]Authored by: Wester, T.
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Abdollahi, MR., Ravindran, VR., Wester, T., Ravindran, GR., & Thomas, DV. (2012). Effect of improved pellet quality from the addition of a pellet binder and/or moisture to a wheat-based diet conditioned at two different temperatures on performance, apparent metabolisable energy and ileal digestibility of starch and nitrogen in broilers. Animal Feed Science and Technology. 175(3-4), 150-157 Retrieved from http://www.journals.elsevierhealth.com/periodicals/anifee/article/PIIS0377840112001769/abstract
[Journal article]Authored by: Wester, T.
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Abdollahi, MR., Ravindran, VR., Wester, TJ., Ravindran, GR., & Thomas, DV. (2012). The effect of manipulation of pellet size (diameter and length) on pellet quality and performance, apparent metabolisable energy and ileal nutrient digestibility in broilers fed maize-based diets. Animal Production Science. 53(2), 114-120 Retrieved from http://www.publish.csiro.au/?paper=AN12166
[Journal article]Authored by: Wester, T.
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Abdollahi, MR., Ravindran, V., Wester, TJ., Ravindran, G., & Thomas, DV. (2012). Effect of improved pellet quality from the addition of a pellet binder and/or moisture to a wheat-based diet conditioned at two different temperatures on performance, apparent metabolisable energy and ileal digestibility of starch and nitrogen in broilers. Animal Feed Science and Technology. 175(3-4), 150-157
[Journal article]Authored by: Wester, T.
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Abdollahi, MR., Ravindran, V., Wester, TJ., Ravindran, G., & Thomas, DV. (2012). Effect of improved pellet quality from the addition of a pellet binder and/or moisture to a wheat-based diet conditioned at two different temperatures on performance, apparent metabolisable energy and ileal digestibility of starch and nitrogen in broilers. Animal Feed Science and Technology.
[Journal article]Authored by: Wester, T.
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Abdollahi, MR., Ravindran, V., Wester, TJ., Ravindran, G., & Thomas, DV. (2011). Influence of feed form and conditioning temperature on performance, apparent metabolisable energy and ileal digestibility of starch and nitrogen in broiler starters fed wheat-based diet. Animal Feed Science and Technology.. 168(1-2), 88-99
[Journal article]Authored by: Wester, T.
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Wester, TJ., weidgraaf, K., Hekman, M., Tavendale, MH., & Cave, NJ. (2011). Effect of glucose infusion and dietary protein level on urea production in the domestic cat.. Journal of Animal Science. 89 (E-suppl 1), 287-287
[Journal article]Authored by: Wester, T.
Abdollahi, MR., Ravindran, V., Wester, TJ., Ravindran, G., & Thomas, DV. (2011). Influence of feed form and conditioning temperature on performance, apparent metabolisable energy and ileal digestibility of starch and nitrogen in broiler starters fed wheat-based diet. Animal Feed Science and Technology. 168(1-2), 88-99
[Journal article]Authored by: Wester, T.
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Abdollahi, MR., Ravindran, V., Wester, TJ., Ravindran, G., & Thomas, DV. (2011). Influence of feed form and conditioning temperature on performance, apparent metabolisable energy and ileal digestibility of starch and nitrogen in broiler starters fed wheat-based diet. Animal Feed Science and Technology.
[Journal article]Authored by: Wester, T.
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Abdollahi, MR., Ravindran, V., Wester, TJ., Ravindran, G., & Thomas, DV. (2010). Influence of conditioning temperature on performance, apparent metabolisable energy, ileal digestibility of starch and nitrogen and the quality of pellets, in broiler starters fed maize- and sorghum-based diets. Animal Feed Science and Technology.. 162(3-4), 106-115
[Journal article]Authored by: Wester, T.
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Abdollahi, MR., Ravindran, V., Wester, TJ., Ravindran, G., & Thomas, DV. (2010). Influence of conditioning temperature on the performance, nutrient utilisation and digestive tract development of broilers fed on maize- and wheat-based diets. BRITISH POULTRY SCIENCE. 51(5), 648-657
[Journal article]Authored by: Wester, T.
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Abdollahi, MR., Ravindran, V., Wester, TJ., Ravindran, G., & Thomas, DV. (2010). Influence of conditioning temperature on the performance, nutrient utilisation and digestive tract development of broilers fed on maize- and wheat-based diets. British Poultry Science. 51(5), 648-657
[Journal article]Authored by: Wester, T.
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Abdollahi, MR., Ravindran, V., Wester, TJ., Ravindran, G., & Thomas, DV. (2010). Influence of conditioning temperature on performance, apparent metabolisable energy, ileal digestibility of starch and nitrogen and the quality of pellets, in broiler starters fed maize- and sorghum-based diets. Animal Feed Science and Technology. 162(3-4), 106-115
[Journal article]Authored by: Wester, T.
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Wester, TJ., Weidgraaf, K., & Ugarte, CE. (2008). Effect of dietary protein level on whole body protein turnover in the adult cat (Felis catus). FASEB JOURNAL. 22,
[Journal article]Authored by: Weidgraaf, K., Wester, T.
King, MR., Wester, TJ., & Morel, PCH. (2007). The effect of dietary spray-dried bovine colostrum and plasma on the response of pigs to enterotoxigenic E. coli challenge after weaning. Livestock Science. 108(1-3), 292-294
[Journal article]Authored by: Morel, P., Wester, T.
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Wester, TJ., Vazquez-Anon, M., Dibner, J., Parker, DS., Calder, AG., & Lobley, GE. (2006). Hepatic metabolism of 2-hydroxy-4-methylthiobutyrate in growing lambs. JOURNAL OF DAIRY SCIENCE. 89(3), 1062-1071
[Journal article]Authored by: Wester, T.
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Lobley, GE., Wester, TJ., Calder, AG., Parker, DS., Dibner, JJ., & Vazquez-Anon, M. (2006). Absorption of 2-hydroxy-4-methylthiobutyrate and conversion to methionine in lambs. JOURNAL OF DAIRY SCIENCE. 89(3), 1072-1080
[Journal article]Authored by: Wester, T.
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Lobley, GE., Wester, TJ., Holtrop, G., Dibner, JJ., Parker, DS., & Vázquez-Añón, M. (2006). Absorption and digestive tract metabolism of 2-hydroxy-4-methylthiobutanoic acid in lambs. Journal of Dairy Science. 89(9), 3508-3521
[Journal article]Authored by: Wester, T.
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Wester, TJ., Vázquez-Añón, M., Dibner, J., Parker, DS., Calder, AG., & Lobley, GE. (2006). Hepatic metabolism of 2-hydroxy-4-methylthiobutyrate in growing lambs. Journal of Dairy Science. 89(3), 1062-1071
[Journal article]Authored by: Wester, T.
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Lobley, GE., Wester, TJ., Calder, AG., Parker, DS., Dibner, JJ., & Vázquez-Añón, M. (2006). Absorption of 2-hydroxy-4-methylthiobutyrate and conversion to methionine in lambs. Journal of Dairy Science. 89(3), 1072-1080
[Journal article]Authored by: Wester, T.
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Wester, TJ., Lobley, GE., Birnie, LM., Crompton, LA., Brown, S., Buchan, V., . . . Lomax, MA. (2004). Effect of plasma insulin and branched-chain amino acids on skeletal muscle protein synthesis in fasted lambs. British Journal of Nutrition. 92(3), 401-409
[Journal article]Authored by: Wester, T.
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Simcock, SE., Rutherfurd, SM., Wester, TJ., & Hendriks, WH. (2005). Total selenium concentrations in canine and feline foods commercially available in New Zealand. New Zealand Veterinary Journal. 53(1), 1-5
[Journal article]Authored by: Wester, T.
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Wester, TJ., Lobley, GE., Birnie, LM., Crompton, LA., Brown, SC., Buchan, V., . . . Lomax, MA. (2004). Effect of plasma insulin and branched-chain amino acids on skeletal muscle protein synthesis in fasted lambs. British Journal of Nutrition. 92(3), 401-409
[Journal article]Authored by: Wester, T.
Lewis, AJ., Wester, TJ., Burrin, DG., & Dauncey, MJ. (2000). Exogenous growth hormone induces somatotrophic gene expression in neonatal liver and skeletal muscle. American Journal of Physiology - Regulatory Integrative and Comparative Physiology. 278(4 47-4)
[Journal article]Authored by: Wester, T.
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Wester, TJ., Lobley, GE., Birnie, LM., & Lomax, MA. (2000). Insulin stimulates phenylalanine uptake across the hind limb in fed lambs. Journal of Nutrition. 130(3), 608-611
[Journal article]Authored by: Wester, T.
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Wester, TJ., Lobley, GE., Birnie, LM., & Lomax, MA. (2000). Insulin stimulates phenylalanine uptake across the hind limb in fed lambs. Journal of Nutrition. 130(3), 608-611
[Journal article]Authored by: Wester, T.
Lewis, AJ., Wester, TJ., Burrin, DG., & Dauncey, MJ. (2000). Exogenous growth hormone induces somatotrophic gene expression in neonatal liver and skeletal muscle. American Journal of Physiology: Regulatory, Integrative & Comparative Physiology. 278(4), 838-844
[Journal article]Authored by: Wester, T.
Burrin, DG., Wester, TJ., Davis, TA., Fiorotto, ML., & Chang, X. (1999). Dexamethasone inhibits small intestinal growth via increased protein catabolism in neonatal pigs. American Journal of Physiology - Endocrinology and Metabolism. 276(2 39-2)
[Journal article]Authored by: Wester, T.
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Lewis, AJ., Dauncey, MJ., Wester, TJ., & Burrin, DG. (1998). Exogenous Growth Hormone (GH) modulates gene expression in neonatal pigs. FASEB Journal. 12(5)
[Journal article]Authored by: Wester, T.
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Wester, TJ., Davis, TA., Fiorotto, ML., & Burrin, DG. (1998). Exogenous growth hormone stimulates somatotropic axis function and growth in neonatal pigs. American Journal of Physiology - Endocrinology and Metabolism. 274(1 37-1)
[Journal article]Authored by: Wester, T.
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Wray-Cahen, D., Nguyen, HV., Burrin, DG., Beckett, PR., Fiorotto, ML., Reeds, PJ., . . . Davis, TA. (1998). Response of skeletal muscle protein synthesis to insulin in suckling pigs decreases with development. American Journal of Physiology - Endocrinology and Metabolism. 275(4 38-4)
[Journal article]Authored by: Wester, T.
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Wester, TJ., Fiorotto, ML., Klindt, J., & Burrin, DG. (1998). Feeding Colostrum Increases Circulating Insulin-Like Growth Factor I in Newborn Pigs Independent of Endogenous Growth Hormone Secretion. Journal of Animal Science. 76(12), 3003-3009
[Journal article]Authored by: Wester, T.
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Wray-Cahen, D., Nguyen, HV., Burrin, DG., Beckett, PR., Fiorotto, ML., Wester, TJ., . . . Davis, TA. (1997). Response of skeletal muscle protein synthesis (PS<inf>m</inf>) to insulin (INS) declines with development. FASEB Journal. 11(3)
[Journal article]Authored by: Wester, T.
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2
Bunin, DG., Wester, TJ., Davis, TA., & Fiorotlo, ML. (1996). Dexamethasone treatment decreases growth of the distal small intestine in neonatal pigs. FASEB Journal. 10(3)
[Journal article]Authored by: Wester, T.
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Burrin, DG., Wester, TJ., Davis, TA., Amick, S., & Heath, JP. (1996). Orally administered IGF-I increases intestinal mucosal growth in formula-fed neonatal pigs. American Journal of Physiology - Regulatory Integrative and Comparative Physiology. 270(5 39-5)
[Journal article]Authored by: Wester, T.
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171
Krehbiel, CR., Britton, RA., Harmon, DL., Wester, TJ., & Stock, RA. (1995). The effects of ruminal acidosis on volatile fatty acid absorption and plasma activities of pancreatic enzymes in lambs.. Journal of animal science. 73(10), 3111-3121
[Journal article]Authored by: Wester, T.
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Wester, TJ., Britton, RA., Klopfenstein, TJ., Ham, GA., Hickok, DT., & Krehbiel, CR. (1995). Differential effects of plane of protein or energy nutrition on visceral organs and hormones in lambs.. Journal of animal science. 73(6), 1674-1688
[Journal article]Authored by: Wester, T.
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Green, DA., Brink, DR., Bauer, ML., & Wester, TJ. (1992). Estradiol-17 beta effects on lipid metabolism of adipose tissue in nutritionally induced lean and obese ovariectomized ewes.. Journal of animal science. 70(7), 2120-2129
[Journal article]Authored by: Wester, T.
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Wester, TJ., Gramlich, SM., Britton, RA., & Stock, RA. (1992). Effect of grain sorghum hybrid on in vitro rate of starch disappearance and finishing performance of ruminants.. Journal of animal science. 70(9), 2866-2876
[Journal article]Authored by: Wester, T.
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Drouillard, JS., Klopfenstein, TJ., Britton, RA., Bauer, ML., Gramlich, SM., Wester, TJ., . . . Ferrell, CL. (1991). Growth, body composition, and visceral organ mass and metabolism in lambs during and after metabolizable protein or net energy restrictions.. Journal of animal science. 69(8), 3357-3375
[Journal article]Authored by: Wester, T.
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Conference

Wester, T., & Mammone, R. (2018). Rate of Gastric Emptying in Cats Fed a Cereal- or Meat-based Diet (P11-014). Vol. 2 , Nutrition 2018 Current Developments in Nutrition
[Conference Abstract]Authored by: Wester, T.
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Schwendel, BH., Wester, TJ., Morel, PCH., Fong, B., Tavendale, MH., Deadman, C., . . . Otter, DE.Differences Between Organic and Conventionally Produced Milk Reduce When Both Systems Use Pasture-feeding. FASEB JOURNAL. 0892-6638.
[Conference]Authored by: Morel, P., Shadbolt, N., Wester, T.
Wester, TJ., Weidgraaf, K., Hekman, M., Bequette, BJ., Cave, NJ., & Tavendale, MH.Upregulation of Glucose Production by Increased Dietary Protein in the Adult Cat (Felis catus). FASEB JOURNAL. 0892-6638.
[Conference]Authored by: Wester, T.
1
Francis, M., Wester, TJ., Morel, PCH., Wilkinson, BHP., & Langelet, E. (2014). Improving water stability of extudate feed for farmed C.porosus. , 23rd working meeting of the Crocodile Specialist Group
[Conference Abstract]Authored by: Morel, P., Wester, T.
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Francis, M., Wester, TJ., Morel, PCH., Wilkinson, BHP., & Langelet, E. (2014). Impact of Na alginate on nutrient digestibility of extrudate feed for farmed C. porosus.. , 23rd working meeting of the Crocodile Specialist Group
[Conference Abstract]Authored by: Morel, P., Wester, T.
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Singh, Y., Ravindran, V., & Wester, TJ. (2014). Influence of pre-pelleting inclusion of whole corn on performance, nutrient utilization and digestive tract measurements of young broilers. (pp. 676 - 676). , 2014 Joint Annual Meeting Linking Animal Science and Animal Agriculture
[Conference Abstract]Authored by: Wester, T.
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Francis, M., Wester, TJ., Morel, PCH., & Wilkinson, BHP. (2014). Sodium alginate addition improves water stability and utilization of extrudated feed for farmed saltwater crocodiles (c.porosus).. (pp. 663 - 663). , 2014, Joint Annual Meeting Linking Animal Sience and Animal Agriculture
[Conference Abstract]Authored by: Morel, P., Wester, T.
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Schwendel, BH., Morel, PCH., Wester, TJ., Tavendale, MH., Deadman, C., Fong, B., . . . Otter, DE. (2015). Fatty acid profile differs between organic and conventionally produced cow milk independent of season or milking time. In Journal of Dairy Science Vol. 98 (pp. 1411 - 1425).
[Conference Abstract]Authored by: Morel, P., Shadbolt, N., Wester, T.
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38
Singh, Y., Wester, TJ., Molan, AL., Ravindran, G., & Ravindran, V. (2013). Influence of whole wheat feeding on the development of coccidiosis in broilers. (pp. 119 - 119). , American dairy science association
[Conference Abstract]Authored by: Wester, T.
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Kerr, SJ., Nuijten, WHM., Wester, TJ., Purchas, RW., & Morel, PC. (2013). Growth potential of New Zealand genotypes. In P. Morel (Ed.) Proceedings of the 黑料网 Advancing Pork Production Seminar. Vol. 3 (pp. 22 - 25). New Zealand: 黑料网 Advancing Pork Production Seminar
[Conference Paper in Published Proceedings]Authored by: Morel, P., Wester, T.
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Abdollahi, MR., Ravindran, V., Wester, TJ., Ravindran, G., & Thomas, DV. (2012). Influence of pellet size on pellet quality and nutrient utilisation and performance of broilers.. Poster session presented at the meeting of American Society of Animal Science
[Conference Poster]Authored by: Wester, T.
Abdollahi, MR., Wester, TJ., Thomas, DV., Ravindran, G., & Ravindran, V. (2012). Influence of conditioning temperature on broiler performance: A balance between nutrient availability and physical pellet quality. Proceedings of the 15th AAAP Animal Science Congress. (pp. 655 - 660). : 15th AAAP Animal Science Congress
[Conference Paper in Published Proceedings]Authored by: Wester, T.
Abdollahi, MR., Ravindran, G., Wester, TJ., Thomas, DV., & Ravindran, V. (2012). Effects of manipulation of pellet diameter and length on pellet quality, nutrient utilisation and broiler performance. In V. Ravindran (Ed.) Proceedings of the Massey Technical Update Conference. Vol. 14 (pp. 29 - 38). : Massey Technical Update Conference
[Conference Paper in Published Proceedings]Authored by: Wester, T.
Abdollahi, MR., Wester, TJ., Ravindran, G., Thomas, DV., & Ravindran, V. (2012). Influence of pellet size on pellet quality and performance and nutrient utilization of broilers. In Animal Science Journal Vol. 90 (pp. 563). , 2012, Joint annual meeting: Wiley
[Conference Abstract]Authored by: Wester, T.
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Schwendel, BH., Morel, P., Wester, T., Tavendale, MH., Deadman, C., Fong, B., . . . Otter, DE. (2012, November). Differentiation of organic from conventionally produced milk. Presented at 5th Australasian Dairy Science Symposium. Melbourne, VIC, Australia.
[Conference Oral Presentation]Authored by: Wester, T.
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Schwendel, BH., Morel, P., Wester, T., Tavendale, MH., Deadman, C., Fong, B., . . . Otter, DE. (2012). Differentiation of organic from conventionally produced milk. In J. Jacobs (Ed.) Proceedings of the 5th Australasian Dairy Science Symposium. (pp. 159 - 161). Australia: 5th Australasian Dairy Science Symposium
[Conference Paper in Published Proceedings]Authored by: Shadbolt, N., Wester, T.
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Wester, T. (2012, December). What's up pussy-cat: Protein metabolism in a domestic carnivore. Presented at Institute of Veterinary, Animal and Biomedical Sciences [IVABS] Research Colloquium. Palmerston North, New Zealand.
[Conference Oral Presentation]Authored by: Wester, T.
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Wester, T. (2012). What's up pussy-cat: Protein metabolism in a domestic carnivore. In Institute of Veterinary, Animal and Biomedical Sciences [IVABS] Research Colloquium: Programme and Abstracts(pp. 17 - 17). , Institute of Veterinary, Animal and Biomedical Sciences [IVABS] Research Colloquium New Zealand: Institute of Veterinary, Animal and Biomedical Sciences
[Conference Abstract]Authored by: Wester, T.
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Abdollahi, MR., Ravindran, G., wester, TJ., Thomas, DV., & Ravindran, V. (2011). Effects of pellet binder or moisture addition at different conditioning temperatures on pellet quality and broiler performance. In V. ravindran (Ed.) Proceedings of the Massey Technical Update Conference. Vol. 13 (pp. 54 - 63). : Massey Technical Update Conference
[Conference Paper in Published Proceedings]Authored by: Wester, T.
Singh, Y., Wester, TJ., Molan, AL., Ravindran, G., & Ravindran, V. (2011). Influence of whole wheat inclusion and die hole diameter on performance of nutrient utilization of broilers. Advancing Poultry Production: Proceedings of the Massey technical Update Conference. Vol. 13 (pp. 67 - 75). New Zealand: Advancing Poultry Production: Massey Technical Update Conference
[Conference Paper in Published Proceedings]Authored by: Wester, T.
Singh, Y., Wester, TJ., Molan, AL., Ravindran, G., & Ravindran, V. (2011). Influence of whole wheat inclusion and die hole diameter on performance and nutrient utilization of broilers. Proceedings of the Massey Technical Update Conference 2011. Vol. 13 (pp. 67 - 75). New Zealand: Advancing Poultry Production
[Conference Paper in Published Proceedings]Authored by: Wester, T.
Wester, TJ., Weidgraaf, K., Hekman, M., Cave, NJ., & Tavendale, MH. (2011). Effect of glucose infusion and dietary protein level on urea production in the domestic cat. In Journal of Animal Science Vol. 89 (pp. 287 - 288).
[Conference Abstract]Authored by: Wester, T.
Wester, TJ., Weidgraaf, K., Hekman, M., Cave, NJ., & Tavendale, MH. (2011). Effect of dietary starch level on protein metabolism in domestic cats. In Journal of Animal Science Vol. 89 (pp. 287 - 287).
[Conference Abstract]Authored by: Wester, T.
Abdollahi, M., Thomas, DV., Wester, T., Ravindran, GR., & Ravindran, VR. (2011). Effects of a commercial pellet binder and moisture addition on pellet quality and, the performance and nutrient utilisation of broilers. Proceedings of the Australian Poultry Science Symposium. Vol. 22 (pp. 61 - 64). Australia: 22nd Annual Australian Poultry Science Symposium
[Conference Paper in Published Proceedings]Authored by: Wester, T.
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Abdollahi, M., Wester, T., Thomas, D., Ravindran, GR., & Ravindran, VR. (2011). Influence of feed form and conditioning temperature on the performance and nutrient utilisation of broiler starters fed wheat-based diet. Proceedings of the 22nd Annual Australian Poultry Science Symposium. Vol. 22 (pp. 209 - 211). Australia: 22nd Annual Australian Poultry Science Symposium
[Conference Paper in Published Proceedings]Authored by: Wester, T.
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Abdollahi, MR., Ravindran, V., Ravindran, G., Wester, TJ., & Thomas, DV. (2010). Influence of conditioning temperature and feed form on the nutrient utilisation and the performance of broilers fed wheat-based diets. In V. Ravindran (Ed.) Proceedings of the Massey Technical Update Conference. Vol. 12 (pp. 67 - 76). : Massey Technical Update Conference
[Conference Paper in Published Proceedings]Authored by: Wester, T.
Abdollahi, MR., Ravindran, V., Ravindran, G., Thomas, DV., & Wester, TJ. (2010). Influence of conditioning temperature on pellet quality and the performance and nutrient utilisation of broilers fed maize- and sorghum-based diets. In R. Sumner (Ed.) Proceedings of the New Zealand Society of Animal Production. Vol. 70 (pp. 272 - 274). : 70th Conference 黑料网
[Conference Paper in Published Proceedings]Authored by: Wester, T.
Singh, Y., Wester, TJ., Ravindran, G., & Ravindran, V. (2010). Performance, nutrient utilization and gizzard development of broiler starters fed diets containing ground or whole corn. In JOURNAL OF DAIRY SCIENCE Vol. 93 (pp. 651 - 651). : ELSEVIER SCIENCE INC
[Conference Abstract]Authored by: Wester, T.
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Abdollahi, M., Ravindran, VR., Ravindran, GR., Wester, T., & Thomas, D. (2010). Brief communication: Influence of conditioning temperature on pellet quality and the performance and nutrient utilisation of broilers fed maize- and sorghum-based diets. Proceedings of the New Zealand Society of Animal Production. Vol. 70 (pp. 272 - 274). New Zealand: New Zealand Society of Animal Production
[Conference Paper in Published Proceedings]Authored by: Wester, T.
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Singh, Y., Wester, T., Ravindran, GR., & Ravindran, VR. (2010). Brief communication: Influence of whole maize feeding on the performance of broiler starters. Proceedings of the New Zealand Society of Animal Production. Vol. 70 (pp. 269 - 271). New Zealand: New Zealand Society of Animal Production
[Conference Paper in Published Proceedings]Authored by: Wester, T.
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Abdollahi, MR., Ravindran, GR., Wester, TJ., Thomas, DV., & Ravindran, VR. (2009). Conditioning temperature effects in maize- and sorghum-based diets. In VR. Ravindran (Ed.) Proceedings of the Advancing Poultry Production: Massey Technical Update Conference. (pp. 36 - 44). New Zealand: Advancing Poultry Production: Massey Technical Update Conference
[Conference Paper in Published Proceedings]Authored by: Wester, T.
Wester, TJ., Weidgraaf, K., Ugarte, CE., & Tavendale, M. (2008). Effect of dietary protein level on urea production and protein turnover in the adult cat (Felis catus). In Journal of Animal Science Vol. 86 (pp. 213 - 213). : American Society of Animal Science
[Conference Abstract]Authored by: Weidgraaf, K., Wester, T.
Wester, TJ., Weidgraaf, K., & Forsyth, SF. (2006). Measurement of whole body protein turnover in the adult cat (Felis catus). In FASEB JOURNAL Vol. 20 (pp. A1045 - A1045). , Experimental Biology 2006 Meeting: FEDERATION AMER SOC EXP BIOL
[Conference Abstract]Authored by: Weidgraaf, K., Wester, T.
Wester, TJ., Morel, PC., & Shilton, AN. (2005). Reducing nitrogen and phosphorus excretion through diet manipulation. (pp. 231 - 232). , 10th Biennial Conference of the Australasian Pig Science Association Werribee, VIC: Australasian Pig Science Association
[Conference Abstract]Authored by: Morel, P., Wester, T.
Shilton, AN., Morel, PC., & Wester, TJ. (2003). Waste yield ratios from a New Zealand pig unit. Vol. IX (pp. 159). , Manipulating Pig Production IX: Proceedings of the Ninth Biennial Conference of the Australasian Pig Science Association Werribee, VIC: Australasian Pig Science Association
[Conference Abstract]Authored by: Morel, P., Wester, T.
Wester, TJ., Morel, PC., & Shilton, AN. (2002, May). Reducing nutrient flow from a pig unit: A Sustainable farming fund project. Presented at Advancing Pork Production Seminar: New Zealand Pork Industry Key Issues and Massey Research Updates. Palmerston North, NZ.
[Conference Oral Presentation]Authored by: Morel, P., Wester, T.
Morel, PCH., Meyer, P., Wester, TJ., & Purchas, RW. (2001). Use of piglets to assess meat iron bioavailability. In MANIPULATING PIG PRODUCTION VIII, PROCEEDINGS Vol. 8 (pp. 40 - 40). , 8th Biennial Conference of the Australasian-Pig-Science-Association: AUSTRALASIAN PIG SCIENCE ASSOC
[Conference Abstract]Authored by: Morel, P., Wester, T.
1
Wester, TJ., Vazquez Anon, M., Parker, D., Dibner, J., Calder, AG., & Lobley, GE. (2000). Synthesis of methionine (Met) from 2-hydroxy-4-methylthio butanoic acid (HMB) in growing lambs. In Journal of Animal Science Vol. 78 (pp. 269 - 269). Savoy, IL: American Society of Animal Science
[Conference Abstract]Authored by: Wester, T.
Wester, TJ., Vazquez Anon, M., Parker, D., Dibner, J., Calder, AG., & Lobley, GE. (2000). Metabolism of 2-hydroxy-4-methylthio butanoic acid (HMB) in growing lambs. In Journal of Animal Science Vol. 78 (pp. 268 - 269). Savoy, IL: American Society of Animal Science
[Conference Abstract]Authored by: Wester, T.
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Teaching and Supervision

Contact Supervisor

Summary of Doctoral Supervision

Position Current Completed
Main Supervisor 2 0
Co-supervisor 2 8

Current Doctoral Supervision

Main Supervisor of:

  • Mikael Sihite - Doctor of Philosophy
    Effect of feed processing and particle size on nutrient utilisation in broiler chickens
  • Obright Hamungalu - Doctor of Philosophy
    Evaluation of pulses as alternative protein source in poultry diets - Nutritional aspects

Co-supervisor of:

  • Janani Thiruchchenthuran - Doctor of Philosophy
    Factors affecting feed ingredients digestibility in pig and poultry
  • Amira Mahmoud Mahmoud - Doctor of Philosophy
    Advancing Black Soldier Fly (Hermetia illucens L.) Production and Nutrition: A Sustainable Solution for Poultry Feeding

Completed Doctoral Supervision

Co-supervisor of:

  • 2023 - Thanh Nguyen - Doctor of Philosophy
    FEED NOT FOOD: ALTERNATIVE FEEDSTUFFS FOR GROWING-FINISHING PIGS
  • 2022 - Mukti Barua - Doctor of Philosophy
    Investigations into the impact of feed form and age on the standardised ileal amino acid digestibility of feed ingredients for broiler chickens
  • 2021 - Yuet-Ming Leung - Doctor of Philosophy
    Using intermittent fasting and a ketogenic diet to improve nutritional and clinical outcomes in long-stay, hospitalised canine spinal patients
  • 2020 - Wellawattage Perera - Doctor of Philosophy
    Influence of feed processing and enzyme supplementation on performance, nutrient utilization and gut morphology of poultry fed barley-based diets
  • 2017 - Brigitte Schwendel - Doctor of Philosophy
    Differentiation between organic and conventionally produced milk in pasture based farming systems
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  • 2013 - Yashpal Singh - Doctor of Philosophy
    Whole grain inclusion in poultry diets: Effects on performance, nutrient utilisation, gut development, caecal microflora profile and coccidiosis challenge
  • 2011 - Mohammadreza Abdollahi - Doctor of Philosophy
    Influence of feed processing on the performance, nutrient utilisation and gut development of poultry and feed quality
  • 2007 - Sarah Todd - Doctor of Philosophy
    Metabolism of Selenium in Cats and Dogs