动物营养学报2018，Vol.30Issue(3)：947-952,6.DOI:10.3969/j.issn.1006-267x.2018.03.018
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
Effects of Cyclic Heat Stress on Breathing Function, Growth Performance and Liver Antioxidant Function of Yellow-Feathered Broilers
摘要
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.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Key words
yellow-feathered broiler/cyclic heat stress/breathing function/growth performance/antioxidant function分类
农业科技引用本文复制引用
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):947-952,6.基金项目
江苏省农业三新工程项目(SXGC(2016) 289) （SXGC(2016）
国家自然科学基金(31472115) （31472115）
山东省家禽产业创新团队(SDAIT-011-08) （SDAIT-011-08）
