在养羊的食中增加多酶复合物的食度的评估
Germán David Mendoza-Martínez1, Pedro Abel Hernández-García2, Cesar Díaz-Galván1
1Departamento de Producción Agrícola y Animal, Universidad Autónoma Metropolitana Xochimilco, México City 04960, Mexico.
Animals : an open access journal from MDPI
|April 27, 2024
概括
将多酶复合物 (M-E) 添加到羔羊食中,改善了料的转化和营养物质的消化能力. 这种酶混合物还改变了肠微生物种群,降低了甲排放强度,为动物表现和环境影响带来了双重好处.
科学领域:
- 动物科学动物科学
- 微生物学 微生物学
- 环境科学 环境科学
背景情况:
- 动物营养研究重点是提高料效率和减少对环境的影响.
- 在牲畜饮食中补充酶是一种提高营养利用的策略.
- 了解酶对乳头功能和甲生产的影响对于可持续农业至关重要.
研究的目的:
- 为了评估多酶复合物 (Optimax E®) 的水平增加对养殖羊羔的表现的影响.
- 评估该酶复合物的对营养消化能力和乳头微生物群组成的影响.
- 为了估计能源利用率 (NEm,NEg) 和反动物甲排放水平.
主要方法:
- 四十只羔羊被分配给四种饮食治疗,其中多酶复合物的水平各不相同 (0,0.2,0.4,0.8%DM),持续77天.
- 测量了料转化,营养物质消化能力 (DM,NDF),肠微生物种群 (类和家族),以及能量参数.
- 计算了甲排放强度 (每公斤DMI或AGD).
主要成果:
- 增加多酶复合物水平改善了料转化和能量利用 (NEm,NEg).
- 干物质和NDF的体内消化能力在酶补充时线性和二次性增加.
- 体微生物群发生了转移,细菌群减少,细菌群增加,增强了细菌群和细菌群的比率;甲排放强度线性降低.
结论:
- 多酶复合物Optimax E®提高了成长中的羔羊的性能和营养物质的消化能力.
- 补充酶可以积极调节肠微生物群,促进更有效的发酵.
- 这种酶复合体显示出降低羊羔生产中温室气体排放强度的潜力.
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