Effects of Fermented Soybean Meal on Growth,Serum Parameters and the Intestine Morphology in Weaned Piglet

A study was conducted to investigate effect of fermented soybean meal and soybean meal on growth performance, serum parameters and small intestine morphology in weaned piglets.Sixty crossbred piglets (Duroc×Landrace×Yorkshire) with an average initial weight of (8.62 ±0.21) kg were allotted to two dietary treatments on the basis of weight, and ancestry was equalized across treatments in a randomized complete block design. Three replications with ten pigs per replicate were used for each treatment. All piglets were weaned at 35 d and fed for 23 days. The control was fed a corn-soybean meal (SBM) diet, and the treatment diet replaced the soybean meal by fermented soybean meal (FSBM). The results showed that serum IgG of piglets fed FSBM decreased by 6.35% (P0.05) compared with the control; meanwhile, F/G, the level of diarrhea and serum urea nitrogen decreased by 8.39%(P0.05), 39.96%(P0.01) and 39.47%(P0.01) respectively, compared with the control. FSBM is beneficial to keep the integrality of small intestine morphology and decrease immunity response to soybean protein in piglets.