Bill Wales

Gene expression of the heat stress response in bovine peripheral white blood cells and milk somatic cells in vivo

JB Garner, AJ Chamberlain, C Vander Jagt, TTT Nguyen, BA Mason, LC Marett, BJ Leury, WJ Wales, BJ Hayes

Journal article  |  2020  |  Scientific Reports

Heat stress in dairy cattle leads to reduction in feed intake and milk production as well as the induction of many physiological s..

Supplementing the diet of dairy cows with fat or tannin reduces methane yield, and additively when fed in combination

SRO Williams, MC Hannah, RJ Eckard, WJ Wales, PJ Moate

Journal article  |  2020  |  ANIMAL

Addition of fats to the diets of ruminants has long been known to result in a reduction in enteric methane emissions. Tannins have..

Evaluation of the n-alkane technique for estimating the individual intake of dairy cows consuming diets containing herbage and a partial mixed ration

MM Wright, MJ Auldist, E Kennedy, FR Dunshea, N Galvin, MC Hannah, WJ Wales

Journal article  |  2020  |  ANIMAL FEED SCIENCE AND TECHNOLOGY

Estimation of dry matter intake (DMI) using the n-alkane technique was evaluated in lactating dairy cows fed fresh herbage and a p..

Influence of proportion of wheat in a pasture-based diet on milk yield, methane emissions, methane yield, and ruminal protozoa of dairy cows.

PJ Moate, MH Deighton, J Jacobs, BE Ribaux, GL Morris, MC Hannah, D Mapleson, MS Islam, WJ Wales, SRO Williams

Journal article  |  2020  |  J Dairy Sci

Wheat is the most common concentrate fed to grazing dairy cows in Australia, but no studies have examined the effects of wheat pro..

A whole-farm investment analysis of a partial mixed ration feeding system for dairy cows

S Henty, CKM Ho, MJ Auldist, WJ Wales, B Malcolm

Journal article  |  2020  |  ANIMAL PRODUCTION SCIENCE

Aim: A dairy farm in south-west Victoria was analysed to discern the impact on profit and risk of changing from a feeding system i..

Genomic prediction of serum biomarkers of health in early lactation.

TDW Luke, TTT Nguyen, S Rochfort, WJ Wales, CM Richardson, M Abdelsayed, JE Pryce

Journal article  |  2019  |  J Dairy Sci

In this study, we estimated genetic parameters and genomic prediction accuracies of serum biomarkers of health in early-lactation ..

Volatile Fatty Acids in Ruminal Fluid Can Be Used to Predict Methane Yield of Dairy Cows.

S Richard O Williams, Murray C Hannah, Joe L Jacobs, William J Wales, Peter J Moate

Journal article  |  2019  |  Animals (Basel)

The dry matter intake (DMI) of forage-fed cattle can be used to predict their methane emissions. However, many cattle are fed conc..

Modification of the sterol profile in milk through feeding.

S Duong, N Strobel, S Buddhadasa, MJ Auldist, WJ Wales, PJ Moate, G Cox, JD Orbell, MJ Cran

Journal article  |  2019  |  J Dairy Sci

The fortification of milk with phytosterols is an increasingly common practice to enhance the sterol profile and offer consumers p..

Responses to metabolic challenges in dairy cows with high or low milk yield during an extended lactation

LC Marett, MJ Auldist, WJ Wales, KL Macmillan, FR Dunshea, BJ Leury

Journal article  |  2019  |  JOURNAL OF DAIRY SCIENCE

Responses of dairy cows with high or low milk yield (MY) beyond 450 d in milk (DIM) to 3 metabolic challenges were investigated. T..

Associations between immune competence, stress responsiveness, and production in Holstein-Friesian and Holstein-Friesian x Jersey heifers reared in a pasture-based production system in Australia

JW Aleri, BC Hine, MF Pyman, PD Mansell, WJ Wales, B Mallard, MA Stevenson, AD Fisher

Journal article  |  2019  |  JOURNAL OF DAIRY SCIENCE

The objectives of this study were to assess antibody and cellular immune responses in first-lactation dairy heifers reared under a..