比较剥皮的麻粉和甘露粉作为哺乳乳奶牛的蛋白质补充剂
F Addo1, R Gervais2, K Ominski1
1Department of Animal Science, University of Manitoba, Winnipeg, MB, Canada R3T 2N2.
Journal of dairy science
|August 29, 2023
概括
麻粉可以安全地替代乳牛饮食中的甘露粉,改善原始蛋白质的消化能力,增加牛奶中的多不和脂肪酸. 在牛奶,血液或尿液中没有检测到大麻素.
科学领域:
- 动物科学动物科学
- 乳制品营养 乳制品营养
- 料科学 料科学
背景情况:
- 菜粉是乳牛常见的蛋白质补充剂.
- 麻粉提供了一种具有不同脂肪酸特征的替代蛋白质来源.
- 调查大麻种子粉的影响对于可持续的奶牛养殖至关重要.
研究的目的:
- 为了评估在哺乳乳乳母牛的饮食中用脱皮的麻粉代替甘露粉的效果.
- 评估对干物质摄入量,牛奶产量,牛奶成分,血液代谢物,营养物质消化能力和大麻素转移的影响.
- 为了确定大麻种子粉作为甘露粉替代品的适用性和安全性.
主要方法:
- 一个3x3拉丁方形设计,有12只正在哺乳的荷尔斯坦奶牛.
- 三种饮食治疗:15%的甘露粉 (CM15),15%的剥皮的麻粉 (HM15) 和混合 (CM7.5HM7.5).
- 分析干物摄入量,牛奶产量和成分,脂肪酸概况,血液代谢物,营养消化能力和大麻素水平.
主要成果:
- 在干物质摄入量,牛奶产量,牛奶蛋白,牛奶脂肪或整体纤维消化能力方面没有显著差异.
- 含有大麻粉增加了原始蛋白质的消化能力和血液,尿液和牛奶中的尿素度.
- 牛奶脂肪中的多不和脂肪酸含量随着大麻食补充而增加.
- 在牛奶,血或尿液中没有检测到大麻素.
结论:
- 脱皮的麻粉是哺乳乳乳母牛的可洛拉粉的合适和安全替代品.
- 用大麻粉取代兰花粉可以提高原始蛋白质的消化能力和牛奶中的多不和脂肪酸含量.
- 含有大麻粉不会对关键的生产或代谢参数产生负面影响,并确保不会转移大麻素.
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