动物营养学报 >

2016 , Vol. 28 >Issue 2: 402 - 409

DOI: https://doi.org/10.3969/j.issn.1006-267x.2016.02.013

禽营养 Poultry Nutrition

急性偏热处理对肉仔鸡体热调节功能的影响

  • 张少帅 ,
  • 甄龙 ,
  • 张敏红 ,
  • 冯京海 ,
  • 彭骞骞 ,
  • 常玉 ,
  • 周莹 ,
  • 李香 ,
  • 李萌
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  • 1. 中国农业科学院北京畜牧兽医研究所, 动物营养学国家重点实验室, 北京 100193;
    2. 河北工程大学农学院, 邯郸 056021;
    3. 东北农业大学动物科技学院, 哈尔滨 150030

收稿日期: 2015-08-24

  网络出版日期: 2016-02-19

基金资助

国家"十二五"科技支撑课题(2012BAD39B02);中国农业科学院科技创新工程(ASTIP-IAS07)

收起

Effects of Acute Moderate Temperatures on Function of Body Thermoregulation of Broiler Chickens

  • ZHANG Shaoshuai ,
  • ZHEN Long ,
  • ZHANG Minhong ,
  • FENG Jinghai ,
  • PENG Qianqian ,
  • CHANG Yu ,
  • ZHOU Ying ,
  • LI Xiang ,
  • LI Meng
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  • 1. State Key Laboratory of Animal Nutrition, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, China;
    2. College of Agriculture, Hebei University of Engineering, Handan 056021, China;
    3. College of Animal Science and Technology, Northeast Agricultural University, Harbin 150030, China

Received date: 2015-08-24

  Online published: 2016-02-19

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摘要

本试验研究了不同急性偏热处理(26和31℃)对肉仔鸡体热调节功能的影响。试验选取40日龄雄性爱拔益加(AA)肉仔鸡24只,转入人工气候室验舱,随机分成3个处理,每个处理8只。适应2 d,温度21℃,相对湿度60%。42日龄时,试验温度分别调整为21(对照)、26和31℃,相对湿度60%。温度转换在1 h内完成。保持处理条件2 h(急性热处理)后采集试验样品,并在2 h内完成。结果表明:与对照处理相比,1)26℃急性热处理后,肉仔鸡体核温度、皮肤温度极显著升高(P<0.01),呼吸频率、血气指标无显著变化(P>0.05),血液钠离子(Na+)浓度有降低的趋势(0.05<P<0.10),三碘甲腺原氨酸(T3)浓度显著降低(P<0.05)。2)31℃急性热处理后,肉仔鸡体核温度、皮肤温度及呼吸频率极显著升高(P<0.01);血液pH极显著升高(P<0.01),二氧化碳分压(PCO2)、碳酸根离子(CO32-)浓度极显著下降(P<0.01),氧分压(PO2)有升高趋势(0.05< P< 0.10);血液钾离子(K+)浓度极显著升高(P<0.01),Na+浓度有下降趋势(0.05< P< 0.10);血液T3浓度显著下降(P<0.05),皮质酮(CORT)浓度有上升趋势(0.05< P< 0.10)。结论,与21℃相比,急性偏热处理(26和31℃)不同程度影响肉仔鸡体热调节功能。

关键词： 急性偏热环境; 肉仔鸡; 体热调节

本文引用格式

张少帅 , 甄龙 , 张敏红 , 冯京海 , 彭骞骞 , 常玉 , 周莹 , 李香 , 李萌 . 急性偏热处理对肉仔鸡体热调节功能的影响[J]. 动物营养学报, 2016 , 28(2) : 402 -409 . DOI: 10.3969/j.issn.1006-267x.2016.02.013

Abstract

This experiment was conducted to investigate the effects of three different acute ambient temperatures (21, 26 and 31℃) on function of body thermoregulation of broiler chickens. Twenty-four 40-day-old male Arbor Acres (AA) broiler chickens were assigned to three environment controlled chambers, each chamber contained eight birds (as eight replicates). The pre-test period lasted for two days and birds were kept at 21℃ and 60% relative humidity. When broiler chickens were 42 days of age, the temperatures of each environment chamber were regulated to 21 (control), 26 and 31℃ finishing within an hour, respectively, while maintaining the relative humidity at 60% and keeping for two hour, then collecting samples. The results showed as follows:compared with 21℃ treatment, 1) 26℃ treatment significantly increased core body and skin temperatures of broiler chickens (P<0.01). There were no significant effects on respiratory rate and blood gas indices (P>0.05). The concentrations of sodion (Na+) in blood had a decreasing tend (0.05<P<0.10). And the concentration of 3,5,3'-triiodothyronine (T3) in blood was decreased significantly (P<0.05). 2) 31℃ treatment significantly increased core body and skin temperatures, respiratory rate, pH and potassium ion (K+) concentration in blood (P<0.01). The carbon dioxin pressure (PCO2) and the concentration of carbonate ion (CO32-) were significantly decreased (P<0.01), while the concentration of T3 was significantly decreased (P<0.05). Oxygen pressure (PO2) and cortisol (CORT) concentration had increasing tends (0.05<P<0.10), while a decline tend was observed at the concentration of Na+ (0.05<P<0.10). In conclusion, compared with 21℃ treatment, acute moderate temperature treatments (26 and 31℃) can affect function of body thermoregulation of broiler chickens in different degrees.

Key words： acute moderate temperature; broiler chickens; body thermoregulation

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