Performance of crossbred pigs fed on boiled sweet potato supplemented with soybean meal

Two feeding experiments were conducted to evaluate the utilization of boiled sweet potato (BSP) in the rations of crossbred (Hampshire X Khasi local) pigs. In the 1st experiment castrated male eiglets (12; 19.0±0.15 kg BW) divided into 3 equal groups were offered rations containing 0,40 or 60% BSP replacing maire & deoiled rice polish for 50 days. In the 2nd experiment castrated male piglets (16; 9.47±0.17kg BW) divided into 4 equal groups were used to study the utilization of BSP at 40% level with solvent extracted or roasted full fat soybean meal for 30 days. Crossbred grower pigs fed on BSPT at 40% level had significantly (P<0.05) higher ADG than pigs fed control ration without any changes in FCR. However, DM digestibility increased significantly (P<0.05) in grower pigs fed on BSP at 40% level and was at par with control at 60% level where as CP digestibility was maintained up to 40% level and then decreased significantly (P<0.01) at 60% level. In 2nd experiment, DM digestibility increased (P<0.05) along with high (P<0.05) ADG in piglets fed on BSP at 40% level either with solvent extracted soybean meal or full fat roasted soybean meal than the piglets fed without BSP.