Effect of relative humidity at chronic temperature on growth performance, glucose consumption, and mitochondrial ATP production of broilers

文献类型： 外文期刊

第一作者： Zhou Ying

作者： Zhou Ying;Zhang Min-hong;Feng Jing-hai;Diao Hua-jie

作者机构：

关键词： broiler; growth performance; mitochondrial ATP poduction; relative humidity; chronic temperature

期刊名称：JOURNAL OF INTEGRATIVE AGRICULTURE （ 影响因子：2.848； 五年影响因子：2.979 ）

ISSN： 2095-3119

年卷期： 2019 年 18 卷 6 期

页码：

收录情况： SCI

摘要： An experiment was conducted to investigate the effect of relative humidity (RH) at chronic temperature on growth performance, glucose consumption, and mitochondrial adenosine triphosphate (ATP) production of broilers. A total of 180 28-day-old Arbor Acres broilers (half males and half females) were randomly allocated to three treatments, each containing six replicates of 10 birds per treatment, using a completely randomized design. Birds were reared at 35, 60 or 85% RH at 32 degrees C for 15 days (temperature increased by 3 degrees C every 3 days from 20 to 32 degrees C within 15 days: 20-23-26-29-32 degrees C). RH affected (P<0.05) average daily feed intake (ADFI), average daily gain (ADG), average daily water consumption (ADWC), blood glucose concentrations, muscle glycogen levels, avian uncoupling protein (av UCP) mRNA expression, and cytochrome c oxidase (CCO) activity in liver of broilers at 42 days of age. The 85% RH decreased (P<0.05) ADFI, ADG and ADWC; 35% RH decreased (P<0.02) ADG. Both 85 and 35% RH increased (P<0.01) blood glucose and decreased (P<0.05) muscle glycogen. Both 85 and 35% RH increased (P<0.05) av UCP mRNA expression. 35% RH decreased (P<0.05) CCO activity. In conclusion, both high and low RH inceased glucose consumption and reduced mitochondrial ATP poduction, leading to a decline in growth rate.

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