《中国畜牧兽医》 ›› 2017, Vol. 44 ›› Issue (8): 2354-2359.doi: 10.16431/j.cnki.1671-7236.2017.08.020

• 动物营养与饲料科学 • 上一篇    下一篇

天蚕素抗菌肽对817肉杂鸡生长性能及免疫功能的影响

王莉1, 陈晓2, 王书全2   

  1. 1. 南昌大学科学技术学院, 南昌 330029;
    2. 锦州医科大学畜牧兽医学院, 锦州 121001
  • 收稿日期:2017-02-13 出版日期:2017-08-20 发布日期:2017-08-18
  • 通讯作者: 王书全 E-mail:lnmcwsq1968@126.com
  • 作者简介:王莉(1980-),女,陕西渭南人,硕士,讲师,研究方向:细胞生物学和发育生物学,E-mail:lovewangly1980@126.com
  • 基金资助:

    辽宁省高等学校优秀人才支持计划(LJQ2013087);辽宁省中小企业创新基金项目(13C26212100952)

Effects of Antimicrobial Peptide on Growth Performance and Immune Function of 817 Broiler Hybrids

WANG Li1, CHEN Xiao2, WANG Shu-quan2   

  1. 1. College of Science and Technology, Nanchang University, Nanchang 330029, China;
    2. College of Animal Husbandry and Veterinary, Jinzhou Medical University, Jinzhou 121001, China
  • Received:2017-02-13 Online:2017-08-20 Published:2017-08-18

摘要:

试验旨在研究天蚕素抗菌肽对817肉杂鸡生长性能和免疫功能的影响。选取1日龄817肉杂鸡900羽,随机分为5个处理组(对照组、抗生素组及Ⅰ、Ⅱ、Ⅲ组),每组6个重复,每个重复30羽。对照组饲喂基础日粮,抗生素组在基础日粮中添加150 mg/kg金霉素,Ⅰ、Ⅱ、Ⅲ组分别在基础日粮中添加100、200和300 mg/kg天蚕素抗菌肽,试验期42 d。结果显示,Ⅱ、Ⅲ组能显著提高1~21日龄817肉杂鸡的平均日增重(P<0.05),显著降低料重比(P<0.05);显著提高21、42日龄817肉杂鸡的胸腺、法氏囊和脾脏指数(P<0.05);显著提高42日龄肉杂鸡的ND抗体水平和T淋巴细胞转化率(P<0.05),表明在日粮中添加天蚕素抗菌肽能提高817肉杂鸡的生长性能和免疫功能,在本试验条件下,适宜的添加量为200 mg/kg。

关键词: 817肉杂鸡; 天蚕素抗菌肽; 生长性能; 免疫功能

Abstract:

This experiment was conducted to investigate the effects of antimicrobial peptide on growth performance and immune function of 817 broiler hybrids. Nine hundred one-day-old 817 broiler hybrids were chosen and randomly divided into 5 groups with 6 replicates per group and 30 broilers per replicate.The broilers in control group were fed with basal diet, broilers in the antibiotic group were fed with basal diet supplemented 150 mg/kg aureomycin,and that in groups Ⅰ,Ⅱ and Ⅲ were fed with basal diet supplemented 100,200 and 300 mg/kg antimicrobial peptide,respectively. The experiment period was 42 days. The results showed that average daily gain of 817 broiler hybrids in groups Ⅱ and Ⅲ was significantly increased (P<0.05),meanwhile the F/G was significantly decreased at 1-21 days old (P<0.05).The immune organ indexes of thymus,bursa of Fabricius and spleen were significantly increased at 21 and 42 days old (P<0.05),and the antibody level against ND and T lymphocyte transformation rate of 42 days old 817 broiler hybrids were improved (P<0.05). It indicated that antimicrobial peptide could increased growth performance and immune function of 817 broiler hybrids as same with aureomycin,and appropriate dosage of antimicrobial peptide was 200 mg/kg in this experiment.

Key words: 817 broiler hybrids; antimicrobial peptide; growth performance; immunity function

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