酵母水解物对早期断奶仔猪生长性能、血清生理生化指标和激素水平以及肠道黏膜形态的影响  

Effects of dietary supplementation with yeast extract on growth performance, hormone level and jejum mucosal morphology of early weaned piglets

作　　者：郭小云[1,2,3] 吴信[1,2,3,4,5] 谢春艳[3] 李彪[4,5] 周慧琦[4,5] 姚娟[5] 印遇龙[1,2,3,4] 

机构地区：[1]南昌大学食品科学与技术国家重点实验室 [2]南昌大学生命科学与食品工程学院,江西南昌330031 [3]中国科学院亚热带农业生态研究所 中国科学院亚热带农业生态过程重点实验室湖南省畜禽健康养殖工程技术中心,湖南长沙410125 [4]湖南农业大学动物科技学院,湖南长沙410128 [5]安琪酵母股份有限公司 湖北省酵母功能重点实验室,湖北宜昌443003

出　　处：《饲料工业》2015年第8期61-64,共4页Feed Industry

基　　金：中国博士后科学基金资助项目[2014M552022];“十二五”农村领域国家科技计划课题[2012BAD39B03]

摘　　要：选取21日龄的杜×长×大三元杂交早期断奶仔猪10窝,按母猪胎次和平均体重相近的原则随机分成2组,即SDPP组(基础日粮+3%的血浆蛋白)和酵母水解物(Yeast extract,YE)组(基础日粮+3%的YE),每组5个重复,试验期为14 d,以研究不同蛋白源对仔猪生长性能、血清生理生化指标和激素水平以及肠道黏膜形态的影响。试验结果表明:1SDPP组与YE组仔猪的平均日增重、采食量、器官指数和腹泻率等指标差异均不显著(P>0.05);2SDPP组与YE组仔猪的血清生理生化指标均差异不显著(P>0.05);3与SDPP组相比,YE组仔猪血清的T3含量显著提高(P<0.05),但两组仔猪血清的胰岛素、T4和皮质醇含量均差异不显著(P>0.05);4与SDPP组相比,YE组仔猪空肠段的隐窝深度降低,且差异显著(P<0.05),绒毛高度和V/C值均差异不显著(P>0.05)。日粮中添加SDPP和YE对早期断奶仔猪生长性能和血清生化指标无明显优势,但对仔猪血清激素水平和肠道黏膜形态有一定的影响。To study Ihe effects of yeast extract on growth performance, hormone level and jejum muco- sal morphology of early weaned piglets, 10 litters with similar average body weight were randomly di- vided into 2 groups： SDPP group （basal diet ＋3%SDPP） and YE group （basal diet ＋ 3%YE） （n=5）. The experiment lasted for 14 （lays. The results showed that： （1） dietary supplementation with SDPP and YE did not affect ADG, ADFI, organ index and diarrhea rate of piglets（P〉0.05）; （2） dietary supplementa- tion with SDPP and YE did not affect blood biochemical indices of early weaned piglets （P〉0.05）;（3） dietary supplement with YE increased T3 concentrations of blood（P〈0.05）.Whereas there were no dif- ferences in the concentration of plasma insulin, T4 and eortisol between two groups.（P〉0.05）; （4） YE supplementation reduced the jejum crypt depth by 21.10% （P〈0.05）, but there were no differenc-es in Villous Height and Villus height：crept depth ratio（P〉0.05）between two groups. In con- clusion, dietary supplementation with SDPP and YE did not affect the growth performance and blood biochemical indiees of piglets. However,YE supplementation inereased the level of T~ and reduced the jejum crypt depth of piglets, which may demonstrated that YE supplementation was contributed to the growth and intestinal development of ear- ly weaned piglets.

关 键 词：血浆蛋白 酵母水解物 早期断奶仔猪 生长性能 激素水平 肠道黏膜形态 

分 类 号：S816.7[农业科学—饲料科学]