不同的食分支链氨基酸比率,原蛋白水平和蛋白质来源可以影响 brojlers 的生长性能和肉类产量
Doyun Goo1, Amit K Singh1, Janghan Choi2
1Department of Poultry Science, University of Georgia, Athens, GA, USA.
Poultry science
|October 2, 2024
概括
均衡的分支链氨基酸 (BCAA) 比例和大豆饮食促进的生长和肌肉发育. 相反,过量的白和无结合氨基酸会对性能和肉类产量产生负面影响.
科学领域:
- 动物营养 动物营养
- 禽畜科学 禽畜科学 禽畜科学
- 生物化学 生物化学
背景情况:
- 分链氨基酸 (BCAA) 对的生长,免疫力和肌肉合成至关重要.
- 不平衡的BCAA比率,受原蛋白 (CP) 水平或蛋白质来源变化的影响,可以导致BCAA对抗性,并阻碍的生长.
- 了解最佳的BCAA比率和蛋白质来源对于改善肉生产至关重要.
研究的目的:
- 为了研究不同BCAA比率在不同CP水平下对 brojler性能的影响.
- 评估大豆粉 (SBM) 与含有非结合氨基酸 (WM+AA) 的小麦中间食品作为蛋白质来源对 brojiler生长和肉质的影响.
- 确定最佳的饮食策略,以增强的生长,肌肉增长和整体健康.
主要方法:
- 实验1:960只雄性Cobb 500肉被食不同BCAA比率 (低,中,高素) 和CP水平的饮食.
- 实验2:640只雄性Cobb 500肉被食不同蛋白质来源 (SBM与WM+AA) 和CP水平的饮食.
- 分析了生长性能,尸体特征,肌肉重量,基因表达和骨矿物成分.
主要成果:
- 高素饮食对生长,尸体重量,乳腺肌肉和矿物成分产生了负面影响,特别是高CP (P <0.05).
- 与WM+AA饮食相比,大豆粉 (SBM) 饮食改善了生长,乳腺肌肉,肌肉生长基因表达和骨矿物成分.
- 高CP加剧了WM+AA饮食对 brojler表现的负面影响 (P<0.05).
结论:
- 均衡的BCAA比率对于的最佳生长和肌肉发育至关重要.
- 基于大豆的饮食对肉的表现和肉类产量有积极的影响.
- 过度的白和在饮食中使用非结合氨基酸可以损害的生长和肉类生产.
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