一个关于马匹和小马的定量,和代谢的元分析
Isabelle Maier1, Ellen Kienzle1
1Department of Veterinary Sciences, Ludwig-Maximilians-Universität München, Schoenleutnerstr. 8, D-85764 Oberschleissheim, Germany.
Animals : an open access journal from MDPI
|October 16, 2024
概括
这一元分析重新评估了马和小马的矿物质需求. 马匹需要较少的,而有机来源提高了消化能力,应避免高度溶解的无机来源.
科学领域:
- 马的营养 马的营养
- 矿物代谢的矿物代谢.
- 比较生理学比较生理学
背景情况:
- 准确估计矿物质需求 (,,) 对于马的健康至关重要.
- 现有的建议可能无法充分考虑马匹和小马之间的差异或不同的矿物来源.
研究的目的:
- 重新评估马和小马对 (Ca), (P) 和 (Mg) 需求的因数计算.
- 为了确定马匹和小马在矿物质需求,消化能力,血清水平和排泄方面的差异.
- 评估无机与有机矿物来源对矿物代谢的影响.
主要方法:
- 对42项研究的数据进行了元分析.
- 应用卢卡斯测试来确定真正的消化能力和内源性便损失.
- 在特定摄入范围内的统计比较 (t 测试,ANOVA,Holm-Sidak 后期测试).
主要成果:
- 马匹表现出较低的内源性便Mg损失和较高的表面Mg消化能力比马匹,这表明Mg需求较低.
- 与"无机"来源相比",有机"的Ca来源显示出更高的真正消化能力和更低的内源性损失.
- 水溶性显著影响P代谢;高度溶解的无机P来源导致高酸血和高酸尿,构成健康风险.
结论:
- 根据新的数据,应根据马匹和小马的Mg要求进行调整.
- 有机的来源被更有效地利用;目前对无机的建议可能过高.
- 由于健康风险,应避免在马的食中使用高度水溶性的无机P来源;对不溶性P来源的要求高于目前推的水平.
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