Effect of supplementation of an exogenous fibrolytic enzyme mixture on the feed intake, nutrient digestibility and nitrogen balance in crossbred dairy cattle

P.K. ANUP KUMAR; Y.B. RAJESHWARI; T. THIRUMALESH

Volume : V, Issue : XI, November - 2016

Effect of supplementation of an exogenous fibrolytic enzyme mixture on the feed intake, nutrient digestibility and nitrogen balance in crossbred dairy cattle

P. K. Anup Kumar, Y. B. Rajeshwari, T. Thirumalesh

Abstract :

Nine crossed cows (132 � 13.1 DIM, 10.8 � 0.70 kg of milk, 406 � 14 kg of body weight) were divided into three groups of three animal each (based on comparable days in milk, milk yield and body weight) and were utilized in an 12 week feeding trial comprising of three periods of four weeks each in a switch over design. ?e cows in all three groups received finger millet straw (FMS) as the sole roughage and a concentrate supplement (CS). Dietary treatment included the following: 1) Control (T1) 2) exogenous fiolytic enzyme supplemented in CS @ 8g/animal/day (T2) and 3) exogenous fiolytic enzyme supplemented in CS @ 12g/animal/day (T3). ?ere was no difference in the digestibility of DM, OM, CP, NDF and ADF between the control and the EFE supplemented groups. All the cows were in positive nitrogen balance. EFE supplementation @ 8 and 12g/animal/day failed in improving digestibility of nutrients in crossed dairy cattle.