肉特定光谱对生长表现和上皮层活动的影响:在商业农场进行的试点研究
Livio Galosi1, Luca Todini1, Laura Menchetti1
1School of Biosciences and Veterinary Medicine, University of Camerino, Via Circonvallazione 93-95, 62024 Matelica, MC, Italy.
Veterinary sciences
|December 27, 2024
概括
肉特定的LED照明改善了的生长和均性,而不会影响长期的压力激素水平. 这种照明策略提高了生产率,但需要进一步的研究来证实在商业环境中发现的结果.
科学领域:
- 动物科学动物科学
- 鸟类生理学 鸟类生理学
- 农业工程 农业工程
背景情况:
- 优化肉生产率对于家禽业至关重要.
- 光谱是影响肉生理和表现的关键环境因素.
- 了解特定光谱对压力指标的影响对于动物福利至关重要.
研究的目的:
- 为了评估特定于肉的LED光谱对肉性能的影响.
- 为了评估光谱对羽毛中的皮质和脱水氨的度的影响.
- 在不同的LED光照条件下分析便中的葡萄皮质和雄激素代谢物.
主要方法:
- 两组罗斯308肉 (每组n=9000) 被暴露在白色LED (WL) 或肉特定的LED (BSL) 光中.
- 每周测量身体重量和均度.
- 收集了羽毛和落样本进行激素分析 (fCC,fDHEA,GCMs,AMs).
主要成果:
- 与WL组相比,BSL组的最终体重显著增加,并改善了均性.
- 群体之间在羽毛皮质 (fCC) 或脱水氨 (fDHEA) 度上没有发现显著差异.
- 在BSL组的便中发现了较高的葡萄糖皮质醇代谢物 (GCM) 度,这表明短期葡萄糖皮质醇分泌增加.
结论:
- 肉特定的LED照明可以提高肉的生产性能和统一性.
- 观察到的生产率改善并没有导致长期的HPA轴激活.
- 建议对这些试点研究结果在商业环境中进行进一步的验证.
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