用植物补充的奶牛的哺乳性能,肠道甲排放和营养利用
L F Martins1, S F Cueva1, T Silvestre1
1Department of Animal Science, The Pennsylvania State University, University Park, PA 16802.
Journal of dairy science
|January 14, 2024
概括
补充奶牛的饮食用Capsicum oleoresin (CAP) 或CAP加丁香油 (CAPCO) 改善了体重增加和能量利用. 补充CAPCO可降低甲 (CH4) 产量和强度,表明潜在的环境效益.
科学领域:
- 动物科学动物科学
- 营养生物化学 营养生物化学
- 环境科学 环境科学
背景情况:
- 奶牛是肠道甲 (CH4) 排放的重要来源.
- 提高能源利用率和减少对环境的影响是乳制品生产的关键目标.
- 植物性料添加剂有潜力调节反动物发酵和动物表现.
研究的目的:
- 评估Capsicum oleoresin (CAP) 和CAP加爪油 (CAPCO) 组合对奶牛的哺乳性能,营养使用,肠道CH4排放和血液标记物的影响.
- 评估这些植物对能量利用和体重增加的影响.
- 调查奶牛养殖中潜在的CH4缓解策略.
主要方法:
- 一项为期10周的随机完整块设计研究,对48只霍尔斯坦牛 (18只原生,30只多生).
- 三种饮食治疗:基础饮食 (CON),CON+300毫克/母牛/天CAP,或CON+300毫克/母牛/天CAPCO.
- 测量包括干物质摄入量 (DMI),牛奶产量 (MY),牛奶成分,体重 (BW) 增加,能量利用效率,CH4排放,反发酵,营养消化能力和血液参数.
主要成果:
- 与CON相比,CAP和CAPCO补充增加了BW收益和提高了能源利用效率.
- 使用CAPCO,CH4排放产量和强度降低了多达11%,特别是在初生雌牛中.
- 鲁米纳酸减少,而牛奶转脂肪酸倾向于随着植物补充而减少.
- 没有观察到对DMI,MY,牛奶成分或营养物质整体消化能力的显著影响,除了对粉消化能力降低的趋势.
结论:
- 补充CAP或CAPCO的食补充剂并没有对哺乳性能产生负面影响,但在哺乳期高峰的奶牛中增加了能量利用和BW收益.
- 卡普科公司 (CAPCO) 证明了CH4缓解效应,特别是在原生母牛中,这表明了对环境的积极影响.
- 植物补充剂可能是改善料效率和减少乳制品养殖环境足迹的可行策略.
相关概念视频
Key Elements for Plant Nutrition
18.8K
Like all living organisms, plants require organic and inorganic nutrients to survive, reproduce, grow and maintain homeostasis. To identify nutrients that are essential for plant functioning, researchers have leveraged a technique called hydroponics. In hydroponic culture systems, plants are grown—without soil—in water-based solutions containing nutrients. At least 17 nutrients have been identified as essential elements required by plants. Plants acquire these elements from the...
18.8K
Overview of Metabolism
30.2K
Living cells constantly carry out various chemical reactions which are necessary for their proper functioning. These reactions are interlinked to one another via multiple pathways. The collection of these chemical reactions is known as metabolism.
Plant Metabolism
Sunlight, the primary source of energy in plants, is first absorbed by the chlorophyll pigments present in their leaves. Plants then use this energy to carry out photosynthesis, where water is oxidized into oxygen and carbon dioxide...
Plant Metabolism
Sunlight, the primary source of energy in plants, is first absorbed by the chlorophyll pigments present in their leaves. Plants then use this energy to carry out photosynthesis, where water is oxidized into oxygen and carbon dioxide...
30.2K


