动物营养学报2024，Vol.36Issue(7) ：4329-4338.DOI:10.12418/CJAN2024.373

不同放养密度对雪峰乌骨鸡生长性能、屠宰性能、血清生化和免疫指标的影响

Effects of Stocking Density on Growth Performance,Slaughter Performance,Serum Biochemical and Immune Indexes of Xuefeng Black Bone Chickens

王俣博 谢静 姚亚铃 曲湘勇 郭松长 李梅春 刘加兴 刘志铁 贺长青
动物营养学报2024，Vol.36Issue(7) ：4329-4338.DOI:10.12418/CJAN2024.373
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  • 维普
  • 万方数据

不同放养密度对雪峰乌骨鸡生长性能、屠宰性能、血清生化和免疫指标的影响

Effects of Stocking Density on Growth Performance,Slaughter Performance,Serum Biochemical and Immune Indexes of Xuefeng Black Bone Chickens

王俣博 1谢静 1姚亚铃 2曲湘勇 1郭松长 1李梅春 3刘加兴 4刘志铁 5贺长青1
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作者信息

  • 1. 湖南农业大学动物科学技术学院,长沙 410128
  • 2. 湖南省怀化市畜牧水产事务中心,怀化 418200
  • 3. 湖南云飞风农业有限公司,怀化 418200
  • 4. 湖南博富循环农业有限公司,岳阳 414500
  • 5. 湖南文妹子现代农业科技生态园有限公司,衡阳 421001
  • 折叠

摘要

本试验旨在研究不同放养密度对雪峰乌骨鸡生长性能、屠宰性能、血清生化以及免疫指标的影响.选用健康的35日龄、体重一致的脱温雪峰乌骨鸡母鸡苗1 620只,随机分为3个放养密度组,分别为低密度组(LSD组,60只/667 m2)、中密度组(MSD组,120只/667 m2)和高密度组(HSD组,180只/667 m2),每组6个重复(林地面积500 m2),LSD组每个重复45只,MSD组每个重复90只,HSD组每个重复135只.预试期7 d,正试期78 d.结果显示:1)LSD组雪峰乌骨鸡的平均日增重和料重比显著高于MSD组和HSD组(P＜0.05).2)LSD组宰前活重和屠体重均显著高于MSD组和HSD组(P＜0.05).3)LSD组血清中谷草转氨酶活性显著低于HSD组(P＜0.05),LSD组和MSD组血清中碱性磷酸酶活性显著高于HSD组(P＜0.05);LSD组血清中甘油三酯含量显著高于HSD组(P＜0.05);HSD组血清中超氧化物歧化酶活性显著低于LSD组和MSD组(P＜0.05).4)HSD组血清中免疫球蛋白G、免疫球蛋白M、白细胞介素-2、白细胞介素-6和肿瘤坏死因子-a含量显著高于LSD组和MSD组(P＜0.05),MSD组血清中免疫球蛋白A含量显著高于LSD组和HSD组(P＜0.05).由此可见,放养密度为60只/667 m2时能有效提高雪峰乌骨鸡的生长性能,同时保证有较好的屠宰性能、抗氧化能力及免疫力.

Abstract

This experiment was conducted to investigate the effects of stocking density on growth performance,slaughter performance,serum biochemical and immune indexes of Xuefeng black bone chickens.A total of 1 620 healthy 35-day-old Xuefeng black bone chickens were randomly assigned into 3 groups,low stocking density group(LSD group,60 birds/667 m2),medium stocking density group(MSD group,120 birds/667 m2)and high stocking density group(HSD group,180 birds/667 m2).The pre-trial period lasted for 7 days and the experimental period lasted for 78 days.The results showed as follows:1)the average daily weight gain and feed/gain of Xuefeng black bone chickens in the LSD group were significantly higher than those in the MSD and HSD groups(P＜0.05).2)Live weight before slaughter,dressings weight in the LSD group were significantly higher than those in the MSD and HSD groups(P＜0.05).3)In serum,aspartate aminotrans-ferase activity in the LSD group was significantly lower than that in the HSD groups(P＜0.05),alkaline phos-phatase activity in the LSD and MSD groups was significantly higher than that in the HSD group(P＜0.05);triglyceride content in the LSD group was significantly higher than that in the HSD group(P＜0.05);superox-ide dismutase activity in the HSD group was significantly lower than that in the LSD and MSD groups(P＜0.05).4)In serum,the contents of immunoglobulin G,immunoglobulin M,interleukin-2,interleukin-6,and tumor necrosis factor-α in the HSD group were significantly higher than those in the LSD and MSD groups(P＜0.05),and the content of immunoglobulin A in the MSD group was significantly higher than that in the LSD and HSD groups(P＜0.05).In conclusion,the stocking density of 60 birds/667 m2 can effectively improve the growth performance of Xuefeng black bone chickens,and at the same time ensure better slaughter perform-ance,antioxidant capacity and immunity.[Chinese Journal of Animal Nutrition,2024,36(7):4329-4338]

关键词

雪峰乌骨鸡/放养密度/生长性能/屠宰性能/血清指标

Key words

Xuefeng black bone chickens/stocking density/growth performance/slaughter performance/ser-um indexes

引用本文复制引用

基金项目

乌骨鸡林下无抗养殖技术研发及示范项目()

湖南省科技厅创新平台与人才计划项目(2022NK4156)

出版年

2024
动物营养学报
中国畜牧兽医学会

动物营养学报

CSTPCDCSCD北大核心
影响因子：1.297
ISSN：1006-267X
参考文献量33
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