
%0 Journal Article
%A Stockdale, CR 
%A Trigg, TE 
%T Effect of pasture allowance and level of concentrate feeding on the productivity of dairy cows in late lactation
%J Australian Journal of Experimental Agriculture
%D 1985/12/01
%V 25
%N 4
%P 739-744
%K 
%R https://doi.org/10.1071/EA9850739
%U https://www.publish.csiro.au/paper/EA9850739 
%X 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. 
