蛋白酶解物对早期断奶仔猪肠黏膜形态和生长性能的影响

本文旨在研究自制蛋白酶解物对早期断奶仔猪生长性能的影响。选用40头健康杜×长×大三元杂交商品仔猪(约3.5 kg/头),随机分为5个处理组(1个对照组,4个试验组),每个处理组设4个重复,每重复2头。对照组添加1.5%血浆蛋白粉,试验1~4组分别添加2%玉米蛋白粉酶解物(HCPP)、豆粕酶解物(HSM)、鱼粉酶解物(HFM)和酵母酶解物(HY)。仔猪14日龄断奶,预试期2 d,正试期14 d。试验测定了早期断奶仔猪生长性能和肠黏膜形态。结果表明:日粮中添加2%酵母酶解物通过保护小肠黏膜的正常形态结构,能有效地提高早期断奶仔猪平均日增重(24.64%,P<0.05)和日采食量(7.80%),并改善饲料转化率(13.68%)。

Effects of Supplemental Hydrolyzed Protein on Intestinal Mucosal Morphology and Performance of Early Weaned Piglets

To investigate the effects of supplemental hydrolyzed protein on performance and intestinal mucosal morphology of early weaned piglets,40 piglets(14-day-old) were used and divided into 5 groups randomly.The control group was fed basal diet supplemented with 1.5% spray dried plasma protein(SDPP),groups 1 to 4 were fed basal diet supplemented with 2% hydrolyzed corn protein powder(HCPP),hydrolyzed soybean meal(HSM),hydrolyzed fish meal(HFM) and hydrolyzed yeast(HY),respectively.The experiment lasted 14 days.Results showed that dietary supplementation of 2% HY improved duodenum and jejunum mucosal morphology,and increased ADG,ADFI and FCR by 24.64%(P<0.05),7.80% and 13.68%,respectively.