Effect of feeding different levels of protein and energy of Bureau of Indian Standard specification on production performance of crossbred (HS x GH) grower pig

Abstract

Present research work was conducted to study the effect of different levels of protein and energy on growth and nutrient utilization in crossbred grower pigs. Twenty four crossbred grower pigs were divided into four groups of six each. Animals were fed four different rations containing 100% of protein and energy of Bureau of Indian Standard (BIS), 100% of protein and 75% of energy of BIS, 75% of protein and 100% of energy of BIS, and 75% of protein and 75% of energy of BIS in T 1 , T 2 , T 3 and T 4 groups, respectively to observe its effect on growth and nutrient utilization in crossbred grower pig. The pigs were fed on the experimental grower rations twice daily. Crude protein (CP) content (%) of the ration was ranged from 14.10±0.32 to 18.71±0.54. The average dry matter (DM) intake (g/day) was similar across all the groups which were ranged from 1357.0±5.4 to 1362.5. The majority of the nutrient digestibility coefficients were found higher (P<0.01) in T 3 group followed by T 2 , T 1 and T 4 groups. The average body weight gain (g/day) was 395.7±33.1, 383.8±21.1, 379.9±12.6 and 375.3±46.0 in T 1, T 2, T 3 and T 4 groups, respectively. The cost of production per kg live weight (Rs.) was ranged from 55.30±1.7 in T 3 to 64.90±8.80 in T 4 group and the values of others were within this range. The cost of production per kg live weight was lowest (P<0.05) in T 3 in comparison to other groups. It is concluded that ration containing 75% of protein and 100% of energy specified by BIS, can meet the nutritional requirement of grower pig without affecting the growth, feed conversion ratio (FCR) and economy of feeding.