循环热应激对黄羽肉鸡呼吸机能、生长性能和肝脏抗氧化功能的影响

钟光, 邵丹, 施寿荣, 童海兵, 宋志刚

doi:10.3969/j.issn.1006-267x.2018.03.018

动物营养学报 >

2018 , Vol. 30 >Issue 3: 947 - 952

DOI: https://doi.org/10.3969/j.issn.1006-267x.2018.03.018

禽营养 Poultry nutrition

循环热应激对黄羽肉鸡呼吸机能、生长性能和肝脏抗氧化功能的影响

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1. 山东农业大学动物科技学院, 泰安 271018;
2. 中国农业科学院家禽研究所, 扬州 225125

钟光(1990-),男,山东诸城人,硕士研究生,动物营养与饲料科学专业。E-mail:929479193@qq.com

收稿日期: 2017-09-27

网络出版日期: 2018-03-05

基金资助

江苏省农业三新工程项目（SXGC（2016）289）；国家自然科学基金（31472115）；山东省家禽产业创新团队（SDAIT-011-08）

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Effects of Cyclic Heat Stress on Breathing Function, Growth Performance and Liver Antioxidant Function of Yellow-Feathered Broilers

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1. College of Animal Science and Technology, Shandong Agricultural University, Tai'an 271018, China;
2. Poultry Institute, Chinese Academy of Agricultural Sciences, Yangzhou 225125, China

Received date: 2017-09-27

Online published: 2018-03-05

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摘要

本试验旨在研究循环热应激对黄羽肉鸡呼吸机能、生长性能和肝脏抗氧化功能的影响。选择35日龄体重相近的雄性黄羽肉鸡144只，随机分为常温组和循环热应激组2个组，每组12个重复，每个重复6只鸡。2个组均饲喂基础饲粮，常温组温度为（26.0±0.5）℃，循环热应激组给予如下温度：20：00-次日08：00为26℃，08：00-12：00和16：00-20：00为30℃，12：00-16：00为34℃。试验期6 d。结果表明：循环热应激2 d后，循环热应激组的鸡冠温度、翅下温度、直肠温度、呼吸频率、料重比（F/G）和肝脏蛋白质羰基含量显著高于常温组（P<0.05），平均日采食量（ADFI）、平均日增重（ADG）以及肝脏过氧化氢酶（CAT）、超氧化物歧化酶（SOD）活性显著低于常温组（P<0.05）。循环热应激6 d后，循环热应激组鸡冠温度、呼吸频率、F/G和肝脏蛋白质羰基含量显著高于常温组（P<0.05），ADFI、ADG以及肝脏还原型谷胱甘肽含量和CAT、SOD、谷胱甘肽过氧化物酶活性显著低于常温组（P<0.05）。综上所述，循环热应激能升高黄羽肉鸡的体温，加快呼吸频率，降低生长性能和肝脏抗氧化功能。

关键词： 黄羽肉鸡; 循环热应激; 呼吸机能; 生长性能; 抗氧化功能

本文引用格式

钟光, 邵丹, 施寿荣, 童海兵, 宋志刚 . 循环热应激对黄羽肉鸡呼吸机能、生长性能和肝脏抗氧化功能的影响[J]. 动物营养学报, 2018 , 30(3) : 947 -952 . DOI: 10.3969/j.issn.1006-267x.2018.03.018

Abstract

This study was designed to investigate the effects of cyclic heat stress on breathing function, growth performance and liver antioxidant function of yellow-feathered broilers. A total of 144 thirty-five-day-old yellow-feathered broilers with similar body weight were randomly divided into 2 groups (normal temperature group and cyclic heat stress group) with 12 replicates per group and 6 chicks per replicate. Broilers in the two group were all fed the basal diets, the temperature for normal temperature group next day (26.0±0.5)℃, while the cyclic heat stress group received cyclic heat stress:20:00 to next day 08:00 was 26℃, 08:00 to 12:00 and 16:00 to 20:00 was 30℃, 12:00 to 16:00 was 34℃. The experimental lasted for 6 days. The results showed that after 2 days of cyclic heat stress, the comb temperature, wing temperature, rectal temperature, breathing rate, ratio of feed to gain (F/G) and liver protein carbonyl content of cyclic heat stress group were significantly higher than those of normal temperature group (P<0.05), however, the average daily feed intake (ADFI), average daily gain (ADG) and activities of catalase (CAT) and superoxide dismutase (SOD) in liver were significantly lower than those of normal temperature group (P<0.05). After 6 days of cyclic heat stress, the comb temperature, breathing rate, F/G and liver protein carbonyl content of cyclic heat stress group were significantly higher than those of normal temperature group (P<0.05), however, the ADFI, ADG and activities of CAT, SOD and glutathione peroxidase and content of glutathione in liver were significantly lower than those of normal temperature group (P<0.05). In conclusion, cyclic heat stress can increase body temperature, improve breathing function, reduce the growth performance and liver antioxidant function of yellow-feathered broilers.

Key words： yellow-feathered broiler; cyclic heat stress; breathing function; growth performance; antioxidant function

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