The Effects Of Fermented Soybean Meal Used In Weaning Piglet Feed

This research discussed the possibility of replacing fishmeal with fermented soybean meal in weaning piglet feed. Different fermented soybean meal from either inland producers or imported were compared to provide important reference data for developing and utilizing fermented soybean meal in stockbreeding.The paper contained three studies. Study one selected fifty-four weaning-piglets (average initial BW=12.03±0.5kg) bornt about forty days. They were randomly divided into three treatments; body weight and gender were parallelism. There were three replicates in each treatment, and six piglets each replicate. Every treatment feeded different feed, and feeded and drank ad libitum. Immunity was according to the hog farm management system. Preparing experiment was six days and real experiment was four days, calculating nutrients digestibility using exterior indicator. This was to view the effects of different levels of fermented soybean meal replaceing fishmeal on weaning-piglets' nutrient digestibility. Slaughtered the piglets at the end of experiment, sampled at duodenum, jejunum and ileum, analyzed the configuration. Study two was to research the influence of different levels of fermented soybean meal replacing fishmeal on weaning-piglets performance.The devise of experiment was same as study one. Study three selected fifty-four weaning-piglets (average initial BW=7.76±0.5kg) bornt about twenty-eight days. There were three replicates in each treatment, and six piglets each replicate. Feeding three kinds of diets from different origins, it was to investigate the effects of soybean meal inland and imported on piglets' performance.The results were as follows:(1) Increased the level of fermented soybean meal in diet, the apparent digestibility of dry matter (P=0.001) and crude protein (P=0.02) increased significantly, there were no significant difference of crude protein digestibility between fishmeal 6% and fermented 8%.(2) Fermented soybean meal significantly increased the villus height of jejunum (P=0.03 ) and duodenum (P=0.04) .(3) There were no significant differences (P>0.05) on piglets' performance when increasing fermented soybean meal.(4) Feed weaned piglets by different resource fermented soybean meal diets, result showed there were no significant difference (P>0.05).