
TY  - JOUR
A1  - Stockdale, CR 
A1  - Trigg, TE 
T1  - Effect of pasture allowance and level of concentrate feeding on the productivity of dairy cows in late lactation
JF  - Australian Journal of Experimental Agriculture
JO  - Aust. J. Exp. Agric.
Y1  - 1985
VL  - 25
IS  - 4
SP  - 739
EP  - 744
KW  - 
UR  - https://doi.org/10.1071/EA9850739 
N2  - This experiment examined the effects of level of concentrate feeding and pasture allowance on the productivity of dairy cows in late lactation. Thirty-two cows in their 8th month of lactation were allocated to eight treatments; these were combinations of two pasture allowances (about 15 and 26 kg DM/cow.day) and four levels of concentrates (0,2,4 kg/cow.day and ad libitum). Milk and protein yields increased linearly with level of supplementation but the response of milk fat yield was curvilinear; peak fat yield occurred at 4 to 5 kg DM/cow.day of concentrates fed. The marginal returns from feeding 1 kg of concentrates were 0.57 kg milk, 0.030 kg fat and 0.022 kg protein from feeding up to 5 kg DM/ cow.day. The different pasture allowances significantly influenced only fat yield; the cows at the higher allowance produced 0.044 kg more fat than did the cows at the lower allowance. 
ER  -

