原生母猪骨矿化动力学作为哺乳期食和的函数
J Heurtault1, S Hiscocks2, M P Létourneau-Montminy3
1Agroscope, Swine Research Group, 1725 Posieux, Switzerland; Department of Animal Sciences, Laval University, Quebec G1V 1A6, Canada.
Animal : an international journal of animal bioscience
|April 5, 2024
概括
母猪在哺乳期和妊娠期动员和恢复骨矿物储备,受到和植物酶饮食的影响. 优化的需求和植物酶的使用可以减少无机的需求和环境排泄.
科学领域:
- 动物科学动物科学
- 营养生物化学 营养生物化学
- 猪生产 生产 猪生产
背景情况:
- 哺乳母猪对的需求很高,导致大量的无机摄入.
- 了解骨矿物质动态对于优化猪中的利用和需求至关重要.
- 骨矿物质的调动和补充会影响母猪的整体健康和营养管理.
研究的目的:
- 量化母猪在哺乳期动员的体内矿物储备.
- 评估饮食中可消化的和植物酶对矿物动员和恢复的影响.
- 为了确定在随后的孕期内矿物质回收的程度.
主要方法:
- 双能X射线吸收计 (DXA) 用于测量24头母猪的体质组成.
- 进行了四种哺乳饮食,含有和没有植物酶的和可消化含量各不相同.
- 身体的矿物质含量在哺乳期和妊娠期的多个时间点被评估.
主要成果:
- 母猪在26天的哺乳期中平均调动了664g的骨矿物质含量 (240g Ca,113g P).
- 饮食中较低的导致骨矿物质动员更大,但植物酶补充剂减轻了这种影响.
- 骨矿物质含量在接下来的妊娠期内得到补充,无论哺乳期饮食如何.
结论:
- 猪骨矿物储备在哺乳期被调动,并在孕期恢复,其动态受和植物酶饮食的影响.
- 涉及足够的可消化和植物酶的饮食策略可以在哺乳期支持骨健康.
- 在需求计算中考虑骨矿化动态可以减少对无机酸盐的依赖,降低分泌量.
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