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在生命早期对户外范围的视觉访问,但不是环境复杂性,增加肉的范围行为

P S Taylor¹, L Fanning², B Dawson²

¹School of Rural and Environmental Science, Faulty Science, Agriculture, Business and Law, University of New England, Armidale, New South Wales, 2530, Australia; Animal Welfare Science Centre, Faculty of Science, The University of Melbourne, Parkville, Victoria, 3010, Australia; School of Agriculture, Food and Ecosystem Sciences, Faculty of Science, The University of Melbourne, Parkville, Victoria, 3010, Australia.

Poultry science

|October 9, 2023

概括

为肉提供早期视觉访问户外范围,鼓励探索并降低死亡率. 这种简单的环境丰富使它们为户外使用做好了准备,改善了福利和潜在的生产成果.

科学领域:

动物行为动物行为
禽畜科学禽畜科学禽畜科学
动物福利动物福利

背景情况:

许多不使用户外通道,如果提供.
这种不情愿可能源于环境从受控的室内条件转向复杂的户外范围的重大转变.
生命早期的准备可以提高肉的范围采用.

研究的目的:

调查是否在生命早期增加室内环境复杂性鼓励肉使用户外范围.
评估早期视觉访问和环境复杂性对行为,场使用和死亡率的影响.

主要方法:

科布500被分配到三个组:视觉访问 (VA),环境复杂性 (EC) 和控制.
VA组有透明的盖子,可以从第一天开始在户外观看;EC组有室内丰富 (haybale,风扇,屏障).
无线电频率识别 (RFID) 追踪范围使用,并从第1到第5周观察行为,在21天后进入户外.

主要成果:

与EC和对照组相比,视觉访问 (VA) 更活跃,在第一周更多地食.
较高比例的VA进入了范围,延迟时间较短,在户外花费的时间比EC和对照组多.
与EC和对照组相比,VA组的死亡率明显较低.

结论:

早期对户外范围的视觉访问显著增加了肉的活动,减少了进入范围的犹,并增强了户外时间.
这种早期环境丰富策略也明显降低了死亡率.
需要进一步的研究来阐明行为机制,并优化商业应用的建议.

关键词:

活动活动活动活动活动活动.环境的丰富环境的丰富这里是自由放牧区.自然光是自然光的一种.养殖养殖养殖养殖

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