简短的沟通:牛肉母牛的表现 食Kernza中间小麦草杂与草草杂的干草
Dante M Pizarro1, Arin Crooks2, Michel A Wattiaux3
1Department of Plant and Agroecosystem Sciences, University of Wisconsin-Madison, Madison, WI 53706, United States.
Translational animal science
|March 9, 2026
概括
成熟的肉牛可以在不产生负面影响的情况下,长达60天的时间内养含有50%Kernza草的饮食,这是多年生副产品. 这种料替代品显示了畜牧系统的潜在经济和环境益处.
科学领域:
- 农业科学 农业科学
- 动物科学动物科学
- 飼料科學 飼料科學
背景情况:
- 克恩扎中间小麦草 (Thinopyrum intermedium) 是一种新的多年作物,具有双重用途的谷物和料的好处.
- 像Kernza草这样的作物副产品是牲畜潜在的替代料,但关于牛的表现的数据有限.
研究的目的:
- 为了评估成熟的肉牛食含有Kernza草的饮食的表现.
- 评估Kernza吸管在平均每日收益,干物质摄入量和身体状况上的影响.
主要方法:
- 在两年内进行了两次养试验,每次试验使用36只孕期安格斯母牛.
- 牛被分配到对照饮食 (100%的草草草草) 或治疗饮食 (50%的Kernza草 - 50%的草草草草).
- 使用了一个完全随机的设计,每个动物都有六个动物的六个,有三个复制.
主要成果:
- 在试验1 (P=0.02) 中,Kernza吸管组的平均每日收益较低,但在试验2 (P=0.13) 中没有.
- 在试验1中,干物摄入量没有受到影响 (P=0.08),但在试验2中,养Kernza草的奶牛的干物摄入量有所减少 (P<0.01).
- 在这两项试验中,饮食组之间没有观察到身体状况的显著变化 (P>0.05).
结论:
- 50%的Kernza草在草草地食中可以给肉牛至少60天.
- 这种养策略并没有对动物的表现产生负面影响.
- 在牛肉奶牛的饮食中,Kernza吸管的包含提供了潜在的经济和环境优势.
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