不同大豆品种和/或成熟度组的肉中原蛋白和氨基酸消化度值
Alexis McDade1, Md Raihanul Hoque2, Virginia R Sykes3
1Department of Food & Animal Sciences, College of Agriculture. Tennessee State University, Nashville, TN 37209, USA.
Poultry science
|February 12, 2026
概括
大豆成熟度 (MG) 4.5 和 5 组对家禽的营养价值有所改善. 这些大豆品种在肉饮食中提供更好的氨基酸消化能力和料转换比率.
科学领域:
- 动物营养动物营养
- 农业科学 农业科学
- 食品科学 食品科学 食品科学
背景情况:
- 大豆粉 (SBM) 是家禽饮食中主要的蛋白质来源,对原蛋白 (CP) 贡献很大.
- 在SBM中蛋白质和氨基酸 (AA) 的数量和质量对于肉的食配方至关重要.
- 豆类品种的营养特征根据成熟度组 (MG) 不同.
研究的目的:
- 评估不同成熟度组的不同大豆品种的氨基酸和蛋白质消化能力.
- 评估大豆成熟度组在家禽饮食中的体外和体外营养影响.
- 确定最佳的大豆品种,以提高 brojler 的营养.
主要方法:
- 进行了体外多酶测试,以模仿肉消化和评估12种品种的SBM消化能力.
- 在体内对144只Cobb 500肉进行了实验,这些肉从四个MG (3, 4, 4.5, 5) 摄取了SBM.
- 使用单向ANOVA和Tukey的多种范围测试来对体外和体内生物数据进行统计分析.
主要成果:
- 实验室分析显示,从MG 4.5.5的全脂大豆品种中,氨基酸消化能力优越.
- 在体内试验表明,与MG 3和MG 4相比,在用MG 4.5和MG 5大豆粉养的肉中,料转换比率 (FCR) 显著降低.
- 在MG 4.5的第7种体外显示出最高的氨基酸消化能力 (P<0.05).
结论:
- 成熟度组4.5和5的大豆品种对家禽具有有利的营养意义.
- 这些发现表明,从较晚成熟的群体中选择大豆可以提高肉饮食的效率.
- 根据成熟度组优化大豆品种选择可以改善家禽料配方和性能.
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