种群密度对羊 (Phasianus colchicus) 的生长,形态发展,行为和福利参数的影响
1Ankara University, Faculty of Agriculture, Department of Animal Science, 06110, Ankara, Turkey. ucara@ankara.edu.tr.
Tropical animal health and production
|December 19, 2023
概括
羊的较低种群密度 (5羊/m2对10羊/m2) 改善了13周后的体重,形态发育和羽毛质量. 低密度还可以通过减少羽毛和改善息行为来提高福利.
科学领域:
- 动物科学动物科学
- 鸟类生物学 鸟类生物学
- 畜牧业管理 畜牧管理
背景情况:
- 种群密度是影响商业养羊生长,行为和福利的关键因素.
- 游戏鸟类的最佳种群密度仍未得到充分研究,这会影响群体管理和生产力.
研究的目的:
- 调查低 (5/m2) 与高 (10/m2) 种群密度对生长,形态,行为和福利的影响.
- 为了确定最佳的种群密度,以改善羊养殖结果.
主要方法:
- 一项涉及200只羊的研究进行了,比较了低密度和高密度的群体.
- 评估的参数包括体重,形态测量 (尺寸,翼展,长度,宽度),行为观察 (,侵略,食),料消费和福利指标 (脚皮炎,羽毛质量).
主要成果:
- 低种群密度导致14-16周的体重显著增加,形态发育优越.
- 低密度的羊表现出更好的羽毛质量和减少羽毛,这与改善的飞行和息行为有关.
- 虽然低密度在第14周增加了侵略性和料消费,但它通常促进了更好的生长和福利.
结论:
- 建议在低种群密度 (5/m2) 下养羊,以提高肥性能和改善福利条件.
- 减少密度有助于自然行为,如息和息,有助于更好的整体健康和羽毛质量.
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