四种有机肉品种的性能,肉质和血液参数根据范围使用不同而有所不同
Claire Bonnefous1,2, Anne Collin3, Laurence A Guilloteau3
1INRAE, Université de Tours, BOA, 37380, Nouzilly, France. claire.bonnefous@fibl.org.
Scientific reports
|December 27, 2024
概括
使用高范围的有机的生长性能较低,但代谢发生变化,乳房肉的黄色增加. 范围勘探影响养殖,影响生长,肉质和生理状况.
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:
- 有机生产系统允许自由养,使得食和移动等自然行为成为可能.
- 了解使用范围对的新陈代谢,福利,生长和肉质量的影响至关重要.
研究的目的:
- 研究不同品种的场使用与各种生产和生理参数之间的关系.
- 评估范围活动与生长性能,肉质和代谢状态之间的权衡.
主要方法:
- 四种品种 (JA757,S757N,白色布雷斯,双重用途) 在户外准入的情况下被研究.
- 每个品种的高范围 (HR) 和低范围 (LR) 被选择,每个品种有25只雄性.
- 分析了体重,尸体特征,肉质 (黄色),福利指标和血液生物标志物.
主要成果:
- 高范围的使用与所有菌株的尸体重量和/或产量明显降低有关.
- 在JA757和双重用途菌株的高者中观察到乳房肉的黄色增加,这可能是由于饮食.
- 代谢和氧化状态,以及免疫和炎症反应,根据血液生物标志物在高和低范围之间有所不同.
结论:
- 在有机肉生产中使用范围在生长性能和其他因素,如肉的颜色和代谢特征之间进行了权衡.
- 虽然范围活动没有对屠宰时的福利指标产生负面影响,但它显著改变了生理状态.
- 需要进一步的研究来优化放牧系统,以实现均衡的生产成果和动物福利.
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