用植物酶解锁植物酸盐:对肉类肉肌肉生长和骨矿化潜力的元分析观点
Emmanuel Nuamah1, Utibe Mfon Okon2, Eungyeong Jeong1
1Department of Animal Science, Jeonbuk National University, Jeonju 54896, Republic of Korea.
Animals : an open access journal from MDPI
|July 27, 2024
概括
补充植物酶在缺乏的饮食中改善肉生长,料摄入量和骨健康. 它的有效性因肉的年龄,品种和食组成而异,而不仅仅是剂量.
科学领域:
- 动物营养和生理学
- 禽畜科学 禽畜科学 禽畜科学
- 环境科学 (动物排泄物)
背景情况:
- 人们越来越担心肉饮食中的 (P) 和 (Ca) 排泄到环境中.
- 在使用外源植物酶的研究中,由于影响P利用的因素,反应不一致.
- 需要对缺乏P和Ca的肉饮食中的植物酶疗效进行定量总结.
研究的目的:
- 量化总结补充植物酶对肉生长表现,骨强度和矿物化的影响.
- 通过子组和元回归分析来探索植物酶效应大小的异质性.
- 评估植物酶对被养为缺乏P和Ca的食的 brojler 的影响.
主要方法:
- 41项研究的系统审查和元分析 (2000-2024年).
- 使用Cochrane SYRCLE偏差风险检查清单进行质量评估.
- 随机效应模型和Hedges使用R软件计算g效应大小;子组和元回归分析.
主要成果:
- 补充植物酶在所有生长阶段显著增加了平均每日料摄入量 (ADFI),平均每日取量 (BWG) 和改善了料转换比率 (FCR) (p < 0.0001).
- 植物酶补充剂在缺乏饮食的肉中持续增强了骨灰,P和Ca含量以及骨强度 (p < 0.0001).
- 肉的年龄,品种,饮食中的P来源和暴露时间显著影响了植物酶对生长和骨参数的影响.
结论:
- 植物酶有效地减轻了饮食中减少的P和Ca的负面影响,改善肉的表现 (ADFI,BWG,FCR),特别是当包含在初始饮食中时.
- 植物酶增强骨灰,矿化和破裂强度,在启动阶段观察到最佳效果.
- 植物酶的疗效受 brojler 特性和饮食因素的影响,而不是仅仅由其剂量.
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