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

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

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

Chinese Journal of Animal Nutrition >

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

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

Short Communications

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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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

Cite this article

CUI Xiaoyan , WANG Shuman , YUAN Jianmin , ZHANG Bingkun , YAN Daren . Maize at Different Storage Periods: Effects on Immune Function of Broilers[J]. Chinese Journal of Animal Nutrition, 2013 , 25(4) : 849 -855 . DOI: 10.3969/j.issn.1006-267x.2013.04.024

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