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突然和逐渐的光/黑暗切换对 brojlers 的生长性能,行为,发育,肉质特征和免疫力的影响
Umut Can Gündoğar1,2, Esin Ebru Onbaşılar1, Ozan Ahlat3
1Department of Animal Husbandry, Faculty of Veterinary Medicine, Ankara University, Ankara, Turkey.
Animal science journal = Nihon chikusan Gakkaiho
|May 29, 2024
概括
在肉养殖中,逐渐的光/黑暗转换改善了小发育和免疫力,观察到更高的IgG水平. 这种方法比急剧变化更适合肉的最佳生长和健康.
科学领域:
- 动物科学动物科学
- 禽畜科学 禽畜科学 禽畜科学
- 农业科学 农业科学
背景情况:
- 光暗周期是影响家禽福利和生产力的关键环境因素.
- 了解光明和黑暗时期之间的过渡速度的影响对于优化肉管理至关重要.
研究的目的:
- 调查突然与逐渐的光/黑暗过渡对肉生长,行为,肉质和免疫力的影响.
- 为了确定肉养殖的最佳光/黑暗过渡策略.
主要方法:
- 实验对270只雄性肉小进行了实验,分为三组,使用不同的光/黑暗过渡方法.
- 评估了生长表现,行为模式,尸体和肉类特征以及免疫反应 (IgG).
- 在肠道内中测量了的高度和洞穴深度.
主要成果:
- 在突然和逐渐过渡组之间,体重,体重增加,料消耗或死亡率没有显著差异.
- 逐渐过渡组显示运动减少和休息行为增加 (坐着,睡觉).
- 在逐渐过渡组中观察到更高的免疫球蛋白G (IgG) 水平,增加的高度和密室深度.
结论:
- 渐进的光明/黑暗过渡会对 brojler 肠道形态和免疫状态产生积极的影响.
- 虽然整体增长指标相似,但逐步过渡提供福利福利和改善肠道健康指标.
- 对于增强的肉养殖实践,建议采取逐步过渡策略.
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