Effects of Diet Protein Level and Bacillus Subtilis on Growth Performance in Early-Weaned Piglets

Three hundred and sixty weaning piglets(21 days)were assigned four experimental treatments.The diet protein level of group 1 and 2 was 20%,and the diet protein level of group 3 and 4 was 18%.The feed additive Bacillus Subtilis were used in group 2 and 4.The experimental period was 14 days after weaning.During the weaning of 7 days,the average daily gain and feed intake of group 2 piglets were higher(P 0.05)than those of group 1,and were similar with group 3 and 4(P 0.05).The diarrhoea ratio of group 4 piglets was lowest among four groups.During the period of experimental days,group 2 and 4 piglet fed Bacillus Subtilis had higher average daily gain than those of group 1 and 3.These findings proved that the lower diet protein level could decrease the piglet diarrhoea,and feed additive Bacillus Subtilis could improve the growth performance for early-weaned piglets.