虫幼虫和黑兵幼虫作为牛食用低质量的料的新型蛋白质补充剂
Mikael N Carrasco1, Merritt L Drewery1
1Department of Agricultural Sciences, Texas State University, 601 University Dr., San Marcos, TX 78666, USA.
Translational animal science
|September 6, 2024
概括
虫幼虫 (MWL) 和黑兵幼虫 (BSFL) 作为牛的可持续蛋白质补充剂显示出有前途. MWL可能比BSFL更有效地提高料利用率,因为这两种料都是传统料的可行替代品.
科学领域:
- 动物科学动物科学
- 营养科学 营养科学
- 可持续农业 可持续农业
背景情况:
- 全球人口的增长需要增加动物蛋白质的生产.
- 传统的蛋白质料,如大豆面临供应压力.
- 昆虫蛋白质,包括粉幼虫 (MWL) 和黑兵幼虫 (BSFL),正在作为可持续的替代品进行探索.
研究的目的:
- 评估整个干燥的MWL和脱脂的BSFL作为牛食用料的蛋白质补充剂的有效性.
- 确定MWL和BSFL对肉牛料利用的影响.
主要方法:
- 一个5x5的拉丁方形实验,用五只小口的小牛.
- 治疗包括对照,大豆粉 (CONV),BSFL,MWL和BSFL和MWL (MIX) 的50/50混合物.
- 补充剂以100mgN/kgBW的剂量提供给消费低质量的料的牛.
主要成果:
- 与对照组相比,蛋白质补充剂显著增加了料有机物摄入量 (FOMI).
- 补充BSFL导致FOMI低于CONV,而MWL显示出非显著的趋势,即FOMI高于CONV.
- 随着蛋白质补充,总可消化的有机物摄入量 (TDOMI) 增加;然而,有机物消化率 (OMD) 和NDFD消化率 (NDFD) 没有受到治疗的影响.
结论:
- 无论MWL和BSFL都是牛的可行的蛋白质补充剂.
- 与BSFL相比,MWL可能会对肉牛的料利用提供更大的刺激.
- 基于昆虫的蛋白质为牛料提供了一个可持续的选择,减少了对传统来源的依赖.
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