論文

基本情報

氏名 大内 義光
氏名(カナ) オオウチ ヨシミツ
氏名(英語) Ouchi Yoshimitsu
所属 獣医学部 獣医保健看護学科
職名 助教
researchmap研究者コード R000035739
researchmap機関 岡山理科大学

題名

Thermal Conditioning Can Improve Thermoregulation of Young Chicks During Exposure to Low Temperatures

単著・共著の別

 

著者

Yoshimitsu Ouchi
Vishwajit S. Chowdhury
John F. Cockrem
Takashi Bungo

概要

The risk of climate change is increasing year by year and changing environmental temperatures will increasingly have effects on productivity in the poultry industry. Thermal conditioning is a method of improving thermotolerance and productivity in chickens (Gallus gallus domesticus) that experience high ambient temperatures. Thermal conditioning involves exposure of chickens to high temperatures at an early age. This conditioning treatment can affect tolerance to other type of stress. However, the effect of thermal conditioning on tolerance of low temperatures has not been investigated. Therefore, in this study we investigated the effect of thermal conditioning in chickens on thermoregulation during exposure to low temperatures. Three day-old female broiler chicks were exposed to high ambient temperatures (40°C for 12 h) as a thermal conditioning treatment. A control group of chicks was kept at 30°C. At 7 days-old, both groups of chicks were exposed to low temperatures (16 ± 0.5°C) for 3 h. Thermal conditioning treatment reduced the decrease in rectal temperature during cold exposure that occurred in control chicks. In addition, hypothalamic mRNA expression of brain derived neurotrophic factor, thyrotropin-releasing hormone and arginine vasotocin genes was higher in thermal conditioning treated chicks than control chicks. The mRNA expression of avian uncoupling protein in the liver was also higher in thermal conditioning chicks. These results suggest that thermal conditioning treatment can improve thermoregulatory mechanisms of chicks under low temperature environments.

発表雑誌等の名称

Frontiers in Animal Science

出版者

Frontiers Media SA

3

 

開始ページ

 

終了ページ

 

発行又は発表の年月

2022-06-10

査読の有無

有り

招待の有無

 

記述言語

 

掲載種別

研究論文(学術雑誌)

ISSN

 

ID:DOI

10.3389/fanim.2022.919416

ID:NAID(CiNiiのID)

 

ID:PMID

 

JGlobalID

 

arXiv ID

 

ORCIDのPut Code

 

DBLP ID