哺乳乳奶牛对不同颗粒配方的料偏好
A L Carroll1, G M Fincham1, K K Buse1
1Department of Animal Science, University of Nebraska-Lincoln, Lincoln, NE 68503.
JDS communications
|September 2, 2024
概括
哺乳期奶牛更喜欢用花粉和玉米粒制成的颗粒,而不是其他配方. 添加调味剂并没有增加对这些首选料颗粒的偏好.
科学领域:
- 动物科学动物科学
- 牛奶牛的营养 牛奶牛的营养
- 料偏好研究 料偏好研究
背景情况:
- 了解料偏好对于优化奶牛营养和管理至关重要.
- 颗粒料通常用于乳制品配给,但它们的味道可能会有所不同.
- 确定首选的料成分可以提高料摄入量和牛的福祉.
研究的目的:
- 为了评估哺乳期泽西奶牛对不同颗粒配方的口味偏好.
- 为了确定调味剂是否可以增强对基本颗粒配方的偏好.
主要方法:
- 进行了两项实验,对多胎母乳牛进行了测试.
- 实验1:根据喜好,奶牛对四种颗粒类型 (ALFC,ENG,DALF,GMIX) 进行排名.
- 实验2:最喜欢的颗粒 (ALFC) 经过添加调味剂 (ALFCO,ALFCM,ALFCL) 的测试.
主要成果:
- 在这两项实验中,由粉,玉米粒和小麦中间体 (ALFC) 组成的颗粒是最受欢迎的.
- 与其他配方相比,ALFC获得了明显更高的偏好排名和首选概率.
- 添加橄花,西瓜或甘调味剂并没有提高对ALFC颗粒的偏好.
结论:
- 用小麦中间体结合的草粉和玉米粒组成的料颗粒配方是哺乳乳乳母牛的首选.
- 这种偏好的颗粒可以成为养策略的宝贵工具,例如在自动化奶制系统中奖励奶牛.
- 不需要调味剂来增强这种首选料颗粒的味道.
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