肉的光强度偏好受品种,年龄,白天的时间和行为的影响
Jerine A J van der Eijk1, Tomas Izquierdo Garcia-Faria2, Stephanie Melis2
1Wageningen Livestock Research, Wageningen University and Research, P.O. Box 338, 6700 AH, Wageningen, The Netherlands. jerine.vandereijk@wur.nl.
Scientific reports
|February 21, 2025
概括
肉,快速生长和缓慢生长,根据年龄和一天的时间表现出不同的光强度偏好. 了解这些偏好可以优化肉管理,以改善福利和行为.
科学领域:
- 动物科学动物科学
- 家禽养殖家禽养殖家禽养殖家禽养殖
- 动物福利 动物福利
背景情况:
- 光强度对于肉的行为和福利至关重要.
- 关于光强度偏好的知识有限,特别是在增长较慢的肉品种.
- 慢生长的肉在欧盟生产系统中越来越重要.
研究的目的:
- 为了确定快速生长和缓慢生长的肉的光强度偏好.
- 研究年龄和一天中的时间对这些偏好的影响.
- 为了将光强度偏好与特定的肉行为相关联.
主要方法:
- 肉被安置在有四个部分的里,每个部分提供不同的光强度 (0.2,20,50或1000 lux).
- 在不同年龄和不同时间进行了行为观察.
- 对肉品种的偏好进行了分析 (快速增长与缓慢增长).
主要成果:
- 这两种肉类型在更高的光强度下表现出更活跃的行为,在更低的光强度下表现出更不活跃的行为.
- 年轻的 brojlers 喜欢更高的光强度,而老的 brojlers 喜欢更低的强度.
- 偏好随着白天的时间而变化,在光周期的开始和结束时偏好更高的强度.
- 缓慢生长的肉在老化时更倾向于最低的强度.
结论:
- 光强度可以被操纵,以在肉屋内为特定行为创建功能区.
- 光强度计划应适应肉的年龄和白天的时间,考虑品种特定的差异.
- 提供光强度的选择可能会提高肉的福利,因为个人的偏好.
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