Effects of supplementation Ca-salt of palm oil fatty acid in the lactating dairy cow diet on productivity and milk compositions

Abstract

       The aim of this experiment was to evaluate the effects of supplementation Ca-salt of palm oil fatty acid (Ca-PO) in the lactating dairy cows diet on dry matter intake, milk yield and milk compositions. Ten crossbred Holstein Frisian lactating dairy cows with averaging milk yield of 7.21±2.35 kg and 159±48 days in milk were used. The animals were stratified random balance by using milk yield and milk compositions divided into 2 groups including control and supplemented Ca-PO at 300g/d. The experiment lasted for 35d with the first 7d was the adjustment period followed by 28d was collection period. The results showed that supplementation Ca-PO at 300g/d in lactating dairy cow diet had no significant differences on dry matter intake and milk yield (p<0.05). However, supplemented Ca-PO significant to increased milk fat and tended to increase total solid percentage when compare to the control group (p<0.10). For milk protein, lactose and solid not fat percentage had no significant differences (p>0.05). It can be concluded that supplemented Ca-PO at 300g/d can increased the concentration of milk fat and no detrimental effect on milk yield.