低温对产性能的影响以及产生理应激反应
Da-Hye Kim1, Ju-Yong Song1, Jina Park1
1Department of Animal Science and Technology, Konkuk University, 120 Neungdong-ro, Gwangjin-gu, Seoul 05029, Republic of Korea.
Animals : an open access journal from MDPI
|December 23, 2023
概括
低温会对产卵母的表现产生负面影响,增加料摄入量,改变蛋颜色. 这项研究表明,最初的抗氧化系统中断和脂质代谢变化没有诱导母显著的应激反应.
科学领域:
- 动物科学动物科学
- 禽畜科学 禽畜科学 禽畜科学
- 环境生理学环境生理学
背景情况:
- 环境温度显著影响家禽生产和福利.
- 了解产母对寒冷压力的生理反应对于优化管理策略至关重要.
研究的目的:
- 为了研究低环境温度对产卵母的表现,蛋质量和生理参数的影响.
- 评估寒冷暴露对产卵母氧化应激标志物和血清生物化学的影响.
主要方法:
- 40只Hy-Line Brown产卵母在4周内暴露在低温 (12±4.5°C) 或正常温度 (24±3°C) 中.
- 评估的参数包括产卵性能,蛋质量,体温,黄黄胺,黄黄皮质和血清生物化学.
主要成果:
- 低温增加了活体体重,料摄入量和料转化率 (p < 0.05).
- 皮肤表面的温度下降,而黄黄和血清总胆固醇/三糖度增加 (p < 0.05).
- 在暴露于低温的母中,蛋颜色强度更高.
结论:
- 产母的低温暴露最初会破坏抗氧化剂系统并改变脂质代谢.
- 这些变化发生在没有显著诱导应激反应的情况下,这表明了适应机制.
- 结果提供了关于在寒冷环境条件下管理产母的见解.
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