照明强度对肉福利和表现的影响
Shengyu Zhou1, Tanner Thornton1, Hao Gan2
1Department of Animal Science, The University of Tennessee, Knoxville, TN 37996, USA.
Animals : an open access journal from MDPI
|November 27, 2025
概括
照明强度显著影响肉的生长和福利. 较低的照明 (5卢克斯) 改善了Cobb 700的料转化,而更高的强度 (50卢克斯) 影响了Ross 708的体重和步态.
科学领域:
- 禽畜科学 禽畜科学 禽畜科学
- 动物福利 动物福利
- 农业工程 农业工程
背景情况:
- 照明强度 (LI) 是一个关键的管理因素,影响肉的行为,生理和福利.
- 了解LI的影响对于优化商业肉生产和确保动物福利至关重要.
研究的目的:
- 评估不同光强度 (50,20和5卢克斯) 对两个肉品种 (Ross 708和Cobb 700) 的生长表现和福利指标的影响.
- 为了确定特定菌株对照明强度的反应,以改进肉管理策略.
主要方法:
- 两种肉品种 (Ross 708,Cobb 700) 在单独的受控试验中,在三种照明强度 (50,20,5卢克斯) 下从第8天养到第56天.
- 每两周一次的评估包括生长表现 (体重,料摄入量,FCR) 和福利指标 (步态,羽毛状况,温度,脚皮肤炎).
主要成果:
- 罗斯708:在第42天 (p=0.03) 体重在50卢克斯下降,但在第56天没有显著差异. FCR不受LI的影响.
- 科布700:28日 (p=0.04) 和42日 (p=0.01) 在5卢克斯下观察到较低的FCR.
- 福利:50卢克斯增加了背部温度;5卢克斯改善了羽毛覆盖和降低了腹部温度. 罗斯20卢克斯的羽毛清洁度较差,而50卢克斯的步态得分更好.
结论:
- brojiler 生产和福利指标对照明强度的反应不同,观察到菌株特定的变化.
- 优化照明强度需要考虑肉品种和期望的生产/福利结果.
- 这些发现支持可持续的家禽生产,通过量身定制的照明管理来平衡效率,生长和动物福利.
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