果作为热带系统中高产奶牛的替代能源:对摄入量,消化能力,平衡和乳制品性能的影响
Elmer Edgardo Corea Guillen1,2, Gabriela Alejandra Flores Leiva2, Manuel Vicente Mendoza2
1Programa de Maestría y Doctorado en Ciencias de la Salud y Producción Animal, Universidad Nacional Autónoma de México, Mexico City 04510, Mexico.
Animals : an open access journal from MDPI
|March 14, 2026
概括
在奶牛的食中用果肉代替玉米粉减少了料摄入量,营养消化能力和牛奶产量. 这种饮食变化对热带条件下高产奶牛的利能力产生了负面影响.
科学领域:
- 动物科学动物科学
- 类动物营养 类动物营养
- 热带农业 热带农业
背景情况:
- 高产的奶牛需要能量密集的粮食以获得最佳的牛奶产量.
- 果纸质 (CiP) 是一个潜在的替代能源用于牲畜料.
- 评估替代性料成分对于热带地区的可持续奶牛养殖至关重要.
研究的目的:
- 评估将玉米粉 (CM) 取代果肉 (CiP) 作为高产奶牛饮食中主要能源的影响.
- 评估CiP对热带条件下的料摄入量,营养消化能力,牛奶产量和经济可行性的影响.
主要方法:
- 在一个交叉设计研究中,使用了18只哺乳乳母牛进行两种饮食治疗:基于CM或基于CiP的饮食.
- 配料的配方是以同热和同为准的.
- 在两个21天期间测量了料摄入量,营养消化能力 (DM,OM,CP,NDF,ADF),牛奶产量和经济回报.
主要成果:
- 用CiP取代CM导致干物质,有机物质,可消化的有机物质和原始蛋白质摄入量减少.
- 所有测量营养素 (DM,OM,CP,NDF,ADF) 的看似全管道消化能力随着CiP的加入而下降.
- 食CiP的奶牛的牛奶产量较低,而奶牛养效率保持不变. 经济分析有利于基于CM的粮食配给.
结论:
- 在奶牛配给中,部分用果肉 (60%) 取代玉米粉对料摄入量和营养物质消化能力产生了负面影响.
- 使用CiP导致热带环境中的奶牛的牛奶产量和利能力下降.
- 可能需要进一步的研究来优化CiP的利用或探索其在不同乳制品生产系统中的使用.
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