动物营养学报2018，Vol.30Issue(2)：696-706,11.DOI:10.3969/j.issn.1006-267x.2018.02.035
饲粮中添加肠杆菌肽对断奶仔猪生产性能和血清生化指标的影响
Effects of Enterobacitracin Supplementation on Performance and Serum Biochemical Indices of Weaning Piglets
摘要
Abstract
This experiment was designed to study the application effect of enterobacitracin in the production of weaning piglets.One hundred and forty-four healthy piglets (Duroc×Landrace×Large White) at the age of 28 days and with the average body weight of (7.35±0.29) kg were randomly selected and allotted to six groups with four replicates of six piglets per replicate (3 males and 3 females).Piglets in control group were fed a basal diet,and piglets in experimental groups were fed experimental diets supplemented with colistin sulfate (30 g/t),cecropin (300 g/t) and enterobacitracin (300,400 and 500 g/t),respectively.The test lasted for 28 days,including early period (day 1 to 14) and later period (day 15 to 28).The results showed as follows:1) compared with control group,the average daily gain (ADG) of 400 and 500 g/t enterobacitracin groups was significantly increased (P＜ 0.05),and the feed to gain ratio (F/G) was significantly decreased (P＜0.05).At the 7th,14th and 28th day,the diarrhea rate of experimental groups was significantly lower than that of control group (P＜0.01),and the 500 g/t enterobacitracin group had the lowest value.2) The serum urea nitrogen (UN) content of 500 g/t enterobacitracin group was significantly lower than that of control group and 30 g/t colistin sulfate group at the 14th day (P＜0.05),and the serum UN content of 400 and 500 g/t enterobacitracin groups was significantly lower than that of control group at the 28th day (P＜0.05);moreover,the serum UN content of 500 g/t enterobacitracin group was significantly lower than that of 30 g/t colistin sulfate group at the 28th day (P＜0.05).At the 14th and 28th day,the serum globulin (GLB) content of 400 and 500 g/t enterobacitracin groups was significantly higher than that of control group (P＜0.05).3) The serum immunoglobulin G (IgG) content of 500 g/t enterobacitracin group was increased by 13.63％ (P＜0.05) and 13.63％ (P＜0.05) compared with control group,respectively.The serum complement 4 (C4) content of antimicrobial peptide groups was significantly higher than that of control group and 30 g/t colistin sulfate group at the 14th day (P＜0.05).4) At the 14th and 28th day,the serum (MDA) content of antimicrobial peptide groups was significantly lower than that of control group and 30 g/t colistin sulfate group (P＜0.01).At the 28th day,the serum superoxide dismutase (SOD) activity and total antioxidant capacity (T-AOC) were significantly higher than those of control group and 30 g/t colistin sulfate group (P＜0.05).In conclusion,enterobacitracin is superior to cecropin in improving performance,immune function and antioxidant capacity of weanling piglets,and also superior to the antibiotic of colistin sulfate,which is suitable for 500 g/t in the diet.关键词
肠杆菌肽/断奶仔猪/生产性能/免疫性能/抗氧化能力Key words
enterobacitracin/weanling piglets/performance/immune function/antioxidant capacity分类
农业科技引用本文复制引用
卜艳玲,陈静,李建涛,程奇,李海东,刘显军..饲粮中添加肠杆菌肽对断奶仔猪生产性能和血清生化指标的影响[J].动物营养学报,2018,30(2):696-706,11.基金项目
辽宁省科技厅重大项目“昌图瘦肉型猪选育及标准化健康养殖产业化示范基地”(2014215031) （2014215031）
辽宁省科技厅重大项目“昌图瘦肉型猪选育及标准化健康养殖产业化示范基地”(2015103034) （2015103034）
