China Animal Husbandry and Veterinary Medicine ›› 2020, Vol. 47 ›› Issue (5): 1481-1488.doi: 10.16431/j.cnki.1671-7236.2020.05.022

• Genetics and Breeding • Previous Articles     Next Articles

Correlation Between Growth Traits and Immune Indexes of Xueshan Chickens

LIU Xiangping1, ZHU Jing1, BAI Hao2, KONG Linglin2, GU Huabing1, DOU Xinhong1   

  1. 1. Jiangsu Institute of Poultry Science, Yangzhou 225125, China;
    2. College of Animal Science and Technology, Yangzhou University, Yangzhou 225009, China
  • Online:2020-05-20 Published:2020-05-18

Abstract: In order to explore the correlation between growth traits and some immune indexes of high-quality chickens,13-week-old Xueshan chickens were taken as the materials,and the roosters and hens were divided into three groups according to their body weight.Roosters:High weight group(≥1 300 g),medium group(1 100~1 300 g) and small weight group(≤1 100 g);Hens:High weight group(≥1 200 g),medium group (1 000~1 200 g) and small weight group (≤1 000 g).The body weight,body size(shin length and shin circumference) and immune indexes(the serum concentrations of IL-1β,α-interferon,IgM and IgG) of the three groups were measured,respectively.The correlation between body weight,body size and immune indexes were analyzed.The results showed that there was a significantly positive correlation between the body weight and shin length and shin circumference (P<0.05) of 13-week-old Xueshan chickens,and the trend was consistent in different sex.All immune indexes showed significant difference between different weight groups (P<0.05),and the trend of rooster and hen was the same.The serum concentrations of α-interferon,IgM and IgG in the high weight group were significantly lower than those in the medium and small weight groups (P<0.05).The concentration of IL-1β in the high weight group was significantly higher than that of the medium and small weight groups (P<0.05).Except for the inflammatory factor IL-1β,body weight was negatively correlated with immune traits in roosters,with a correlation coefficient ranging from -0.271 to -0.248.Body weight in hens was negatively correlated with IgM and α-interferon (P<0.05),the correlation between body size and immune traits was not significant.There was a significant positive correlation between body weight and body size (P<0.05).There was also a significant positive correlation between immune indexes,especially between cellular immunity and humoral immunity.The results showed that the growth traits of Xueshan chicken had a significant effect on immune performance,and there was an antagonistic relationship between body weight and immune indexes.

Key words: quality chicken; body weight; body measurement; growth trait; immune indexes

CLC Number: