Milk production responses to different strategies for feeding supplements to grazing dairy cows
MJ Auldist, LC Marett, JS Greenwood, MM Wright, M Hannah, JL Jacobs, WJ Wales
JOURNAL OF DAIRY SCIENCE | ELSEVIER SCIENCE INC | Published : 2016
Milk production responses of grazing cows offered supplements in different ways were measured. Holstein-Friesian cows, averaging 45 d in milk, were allocated into 8 groups of 24, with 2 groups randomly assigned to each of 4 feeding strategies. These were control: cows grazed a restricted allowance of perennial ryegrass pasture supplemented with milled wheat grain fed in the milking parlor and alfalfa hay offered in the paddock; FGM: same pasture and allowance as the control supplemented with a formulated grain mix containing wheat grain, corn grain, and canola meal fed in the parlor and alfalfa hay fed in the paddock; PMRL: same pasture and allowance as the control, supplemented with a PMR c..View full abstract
The authors are grateful to G. Morris, A. McDonald, D. Mapleson, T. Phillips, C. Macleod, T. Hookey, S. Ziero, L. Dorling (all of DEDJTR Ellinbank), and DEDJTR Ellinbank farm staff for cow feeding and husbandry. Thanks also go to Dairy Australia's Nutrition Advisory Group (Melbourne, Australia) for support with the design and interpretation of this experiment. This research was funded by DEDJTR and Dairy Australia (Melbourne, Australia).