不同的可代谢能量饮食对肉生长性能,营养消化能力,器官体重,便得分和损伤得分的影响
Usman Kayode Kolawole1,2, In Ho Kim1,2
1Department of Animal Biotechnology.
Journal of animal physiology and animal nutrition
|February 13, 2025
概括
较高的可代谢能量 (ME) 饮食改善了 brojler 的生长. 养肉3250 kcal/kg ME提高了平均每日取和料转换比率,而不影响营养消化能力.
科学领域:
- 动物科学动物科学
- 禽类营养 养 禽类营养
- 鸟类生理学 鸟类生理学
背景情况:
- 优化肉饮食对于高效的肉类生产至关重要.
- 可代谢能量 (ME) 是影响生长表现和营养利用的关键组成部分.
- 了解不同的ME水平对肉健康和生产力的影响至关重要.
研究的目的:
- 为了研究不同代谢能量 (ME) 水平对肉生长表现的影响.
- 评估ME对营养消化能力,便分数,器官重量和病变分数的影响.
- 为了确定1至34天大的肉的最佳ME水平.
主要方法:
- 1134只罗斯肉被分配给三种饮食治疗,每种饮食有不同的ME水平 (3150,3200和3250卡路里/公斤).
- 饮食分为三个阶段:起始阶段 (1-7天),生长阶段 (8-20天) 和完成阶段 (21-34天).
- 评估了生长性能,营养消化能力,便得分,器官重量和病变得分.
主要成果:
- 与最低的ME饮食 (3150 kcal/kg) 相比,被养最高ME饮食 (3250 kcal/kg) 的肉表现出明显改善的平均每日取 (ADG) 和料转换比率 (FCR).
- 在治疗过程中,在料摄入量 (FI),体重增加 (BWG),营养消化能力,便得分,器官重量或损伤得分方面没有发现显著差异.
- 3250 kcal/kg的ME饮食在生长和整体实验期间表现出卓越的表现.
结论:
- 从第1天到第34天为肉提供3250 kcal/kg ME的饮食,适用于提高平均每日益和料转换比率.
- ME水平显著影响肉的生长表现,特别是ADG和FCR.
- 进一步的研究可以探索更高的ME饮食的长期影响和经济可行性.
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