谷仓内光强度的分布是否会影响肉的生产和福利?
T Shynkaruk1, M Parsons1, C A B Adler1
1Department of Animal and Poultry Science, University of Saskatchewan, Saskatoon, SK, Canada.
British poultry science
|October 28, 2024
概括
肉养殖中的可变光强度 (VLI) 对整体生产率的影响最小,但减少了骨问题. 鸟类表现出特定位置的行为,这表明通过适应光强度偏好来改善福利.
科学领域:
- 动物科学动物科学
- 禽畜科学 禽畜科学 禽畜科学
- 动物福利 动物福利
背景情况:
- 肉生产系统通常使用统一的照明.
- 了解照明环境对肉福利和生产力的影响,对于可持续农业至关重要.
研究的目的:
- 评估可变光强度 (VLI) 对肉福利和生产力的影响.
- 为了将VLI与统一光强度 (CON) 控制组进行比较.
主要方法:
- 罗斯308只肉 (n=7,256) 被养成35天的年龄.
- 实验组被暴露于均的10卢克斯 (CON) 或VLI (2-5卢克斯在墙壁附近,84-133卢克斯在料器附近).
- 使用ANOVA分析的数据在p≤0.05.05时具有意义.
主要成果:
- VLI增加了早期料摄入量,但没有影响体重;CON提高了整体效率.
- 在VLI下,骨相关死亡率降低.
- 在治疗之间没有观察到足,,步态得分,异质细胞与淋巴细胞的比率或黑激素度的显著差异.
结论:
- 在VLI下养肉对生产和大多数福利指标的影响有限.
- 肉的行为取决于位置,不管光线处理如何.
- 满足鸟类对不同强度光线的偏好可能会提高福利.
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