全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...

偏热刺激对肉鸡休息行为、生理及生产性能的影响

DOI: 10.3969/j.issn.1006-267x.2015.07.012

Keywords: 偏热刺激,休息行为,生理反应,生产性能,肉鸡

Full-Text   Cite this paper   Add to My Lib

Abstract:

本文旨在研究持续偏热刺激对爱拔益加(AA)肉鸡休息行为、生理和生产性能的影响。将健康、体重接近的192只22日龄AA肉鸡(公母各占1/2)平均分成4个处理,分别置于4个相同环境控制室,每个处理6个重复,每个重复8只鸡。适应7d。29日龄08:00将各室温度分别逐渐(30min内)调到18、22(热中性温度)、26和30℃(±0.5℃)并保持不变,试验期14d。结果表明:温度处理2h,与22℃处理相比,26和30℃处理坐着休息时间百分比显著下降(P<0.05),俯伏休息时间百分比显著升高(P<0.05)。第3、10天,18和26℃处理下丘脑热休克蛋白70(HSP70)浓度显著高于22℃处理(P<0.05)。第1、3和10天,26℃处理体核温度、血浆皮质酮和三碘甲腺原氨酸(T3)浓度与22℃处理差异不显著(P>0.05),30℃处理体核温度显著高于其他处理(P<0.05)。1~7d和8~14d,26和30℃处理平均日采食量(ADFI)显著低于22℃处理(P<0.05)。1~14d,26和30℃处理的ADFI、平均日增重(ADG)显著低于22℃处理(P<0.05)。由此可得,26℃偏热刺激在一定程度上降低了29~42日龄AA肉鸡坐着休息时间百分比和生产性能,提高了俯伏休息时间百分比和下丘脑HSP70浓度。

References

[1]  PEREIRA D F,N??S A,SALGADO D A,et al.Correlations among behavior,performance and environment in broiler breeders using multivariate analysis[J].Revista Brasileira de Ciência Avícola,2007,9(4):207-213.
[2]  MAHMOUD K Z,EDENS F W.Influence of selenium sources on age-related and mild heat stress-related changes of blood and liver glutathione redox cycle in broiler chickens (Gallus domesticus)[J].Comparative Biochemistry and Physiology Part B:Biochemistry and Molecular Biology,2003,136(4):921-934.
[3]  苏红光,张敏红,冯京海,等.持续冷热环境对肉鸡生产性能、糖代谢和解偶联蛋白mRNA表达的影响[J].动物营养学报,2014,26(11):2-8.
[4]  BOKKERS E A,KOENE P.Behaviour of fast- and slow growing broilers to 12 weeks of age and the physical consequences[J].Applied Animal Behaviour Science,2003,81(1):59-72.
[5]  MALLEAU A E,DUNCAN I J H,WIDOWSKI T M,et al.The importance of rest in young domestic fowl[J].Applied Animal Behaviour Science,2007,106(1):52-69.
[6]  PICKEL T,SCHOLZ B,SCHRADER L.Roosting behaviour in laying hens on perches of different temperatures:trade-offs between thermoregulation,energy budget,vigilance and resting[J].Applied Animal Behaviour Science,2011,134(3/4):164-169.
[7]  TISSIéRES A,MITCHELL H K,TRACY U M.Protein synthesis in salivary glands of Drosophila melanogaster:relation to chromosome puffs[J].Journal of Molecular Biology,1974,84(3):389-392.
[8]  DR?GE W.Free radicals in the physiological control of cell function[J].Physiological Reviews,2002,82(1):47-95.
[9]  GERAERT P A,PADILHA J C F,GUILLAUMIN S.Metabolic and endocrine changes induced by chronic heatexposure in broiler chickens:biological and endocrinological variables[J].The British Journal of Nutrition,1996,75(2):205-216.
[10]  王士长,陈静,黄怡,等.热应激对肉鸡生产性能和血清生化指标的影响[J].中国家禽,2007,29(15):11-13.

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133