不同储存期玉米对肉鸡免疫功能的影响

崔小燕; 王树满; 袁建敏; 张炳坤; 闫大任

doi:10.3969/j.issn.1006-267x.2013.04.024

动物营养学报 >

2013 , Vol. 25 >Issue 4: 849 - 855

DOI: https://doi.org/10.3969/j.issn.1006-267x.2013.04.024

研究简报 Short Communications

不同储存期玉米对肉鸡免疫功能的影响

崔小燕 ,
王树满 ,
袁建敏 ,
张炳坤 ,
闫大任

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1. 东北林业大学野生动物资源学院, 哈尔滨 150040;
2. 中国农业大学动物科技学院, 动物营养学国家重点实验室, 北京 100193

收稿日期: 2012-11-26

网络出版日期: 2013-03-25

基金资助

“十二五”国家科技支撑计划课题(2011BAD26B04);家禽产业技术体系北京市创新团队家禽团队

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Maize at Different Storage Periods: Effects on Immune Function of Broilers

CUI Xiaoyan ,
WANG Shuman ,
YUAN Jianmin ,
ZHANG Bingkun ,
YAN Daren

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1. College of Wildlife Resources, Northeast Forest University, Harbin 150040, China;
2. State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China

Received date: 2012-11-26

Online published: 2013-03-25

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摘要

本试验旨在探讨不同储存期玉米对肉鸡免疫功能的影响。选取1日龄雌性科宝商品代雏鸡144只,根据体重均衡原则分成3组(每组8个重复,每个重复6只),分别饲喂由储存2、4年的玉米配制的试验饲粮,与储存0年的玉米作对照,试验期42 d,测定17日龄时血液淋巴细胞转化率,21、42日龄时免疫器官指数、血清免疫球蛋白G含量、血清新城疫抗体效价和血清溶菌酶活性指标。结果表明:1)21日龄时,与对照组相比,储存2年的玉米对肉鸡免疫器官指数、血液特异性免疫和非特异性免疫均没有显著影响(P>0.05),但储存4年的玉米显著降低了肉鸡胸腺指数、法氏囊指数和脾脏指数(P<0.05),显著降低了淋巴细胞对伴刀豆球蛋白A的反应性(P<0.05),以及血清免疫球蛋白G含量、新城疫抗体效价和溶菌酶活性(P<0.05)。2)42日龄时,与对照组相比,储存2年的玉米对肉鸡免疫器官指数、血液特异性免疫和非特异性免疫也均没有显著影响(P>0.05),但储存4年的玉米显著降低了肉鸡脾脏指数和血清免疫球蛋白G含量(P<0.05),对其他免疫指标没有显著影响(P>0.05)。结果显示,玉米储存期过长可导致肉鸡的免疫功能下降。

关键词： 玉米; 储存期; 肉鸡; 免疫功能

本文引用格式

崔小燕 , 王树满 , 袁建敏 , 张炳坤 , 闫大任 . 不同储存期玉米对肉鸡免疫功能的影响[J]. 动物营养学报, 2013 , 25(4) : 849 -855 . DOI: 10.3969/j.issn.1006-267x.2013.04.024

Abstract

This study was conducted to explore the effects of maize at different storage periods on immune function of broilers. Two hundred and forty one-day-old Cobb 500 female broilers were chosen and allocated to 3 groups (8 replicates per group and 10 chickens per replicate) according to the principle of body weight balance. Broilers in control group were fed maize stored 0 year and broilers in experiment groups were fed maize stored 2 or 4 years. The experiment lasted for 42 days. Lymphocyte proliferation rate of peripheral blood of broilers at 17 days of age, immune organ indexes, serum immunoglobulin G content, serum antibody titer of Newcastle disease, and serum lysozyme activity of broiler at 21 and 42 days of age were tested. The results showed as follows: 1) At 21 days of age, compared with the control group, maize stored two years had no significant effects on immune organ indexes, blood specific immunity and nonspecific immunity of broilers (P>0.05). However, maize stored four years significantly decreased thymus index, spleen index, bursa of Fabricius index, peripheral lymphocyte concanavalin A stimulus index, and serum immunoglobulin G content, antibody titer of Newcastle disease and lysozyme activity of broilers at 21 days of age (P<0.05). 2) At 42 days of age, compared with the control group, maize stored two years had no significant effects on immune organ indexes, blood specific immunity and nonspecific immunity of broilers (P>0.05), but maize stored four years significantly decreased spleen index and serum immunoglobulin G content of broilers (P<0.05), there were no significant differences in the other indexes among all groups (P>0.05). In conclusion, maize at longer storage periods decreases the immune function of broilers.

Key words： maize; storage periods; broiler; immune function

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