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Windowing Chicken Eggs for Developmental Studies
Published on: October 1, 2007
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在个体水平上使用块与卵质量的改善和产母的骨骨折有关
Tunmise F Ehigbor1, A Michelle Edwards2, Ana K Rentsch1
1Department of Animal Biosciences, Ontario Agricultural College, University of Guelph, Guelph, Ontario, N1G2W1 Canada; Campbell Centre for the Study of Animal Welfare, University of Guelph, Guelph, Ontario N1G2W1 Canada.
Poultry science
|September 7, 2025
概括
使用打块 (PBs) 的产母保持了更好的蛋厚度和强度. 骨骨折的增加了PB的使用,这表明PB满足骨修复和蛋形成的个人需求.
科学领域:
- 动物科学动物科学
- 禽畜科学 禽畜科学 禽畜科学
- 动物营养 动物营养
背景情况:
- 产母需要大量的来形成蛋和维护骨,特别是在灯光灭灯附近.
- 块 (PBs) 为提供了可访问的来源和丰富.
- 了解的偏好和使用PBs对于优化摄入量和福利至关重要.
研究的目的:
- 为了研究块偏好 (PBp) 和使用,骨折状态 (KS) 和产母的蛋质量之间的关系.
- 为了确定PB使用是否与卵厚度和强度的提高有关.
- 为了探索骨折如何影响制行为.
主要方法:
- 两个产卵母品种 (Dekalb White和Bovans Brown) 被安置在丰富的子中,并提供了三种不同和谷物含量的PBs.
- 观察到的行为,被归类为PBs的"用户"或"非用户".
- 测量了蛋的重量,贝的破裂强度和贝厚度,并通过X线图评估了骨折.
主要成果:
- 在研究阶段之间,PB偏好显示出中等的一致性 (kappa = 0.6).
- PB偏好与骨骨折状态,蛋重量或贝破裂强度无关.
- 与非使用者相比,PB用户随着时间的推移保持了外厚度,并表现出更高的外破裂强度.
- 在第二阶段,头新骨折的母增加了他们的PB行为.
结论:
- 个体母使用块可能表明对卵形成和骨修复的具体需求.
- 块的使用,而不是单独的偏好,与改善蛋质量有关.
- 块可以作为一种有价值的工具来支持产母的代谢和骨健康.
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