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中国农学通报

中国农学通报 ›› 2009, Vol. 25 ›› Issue (24): 15-19.

所属专题： 畜牧兽医

• 畜牧 动物医学 蚕 蜂 • 上一篇    下一篇

洋蓟的营养价值评定及BMY牛育肥效果

王安奎,金显栋,亐开兴,付美芬,张继才,杨世平,王 喆,杨国荣,袁希平,黄必志   

  • 收稿日期:2009-07-07 修回日期:2009-07-27 出版日期:2009-12-20 发布日期:2009-12-20
  • 基金资助:

    云南省技术创新人才培养计划

The Nutrient Evaluation of Cynaya scolymus. L and Finishing Effect on BMY Cattle

  • Received:2009-07-07 Revised:2009-07-27 Online:2009-12-20 Published:2009-12-20

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摘要：

通过对洋蓟及副产品的营养价值进行系统评定，为合理开发洋蓟饲料产品奠定基础，同时观察洋蓟饲料对肉牛育肥效果。对洋蓟及副产品的营养成分测定，并进行肉牛育肥（30头BMY牛公牛）试验。结果表明，洋蓟副产品的粗蛋白含量在10.33%以上，洋蓟粉、青贮洋蓟及洋蓟花苞的体外干物质消化率、NDF和ADF分别为60.09%、26.71%、26.51%，54.97%、31.10%、31.24%和47.14%、34.24%、26.08%，而且洋蓟及饲料产品的瘤胃降解率均高于大部分常用的粗饲料，云南黄牛对洋蓟粉的干物质和粗蛋白的表观消化率为65.14%和50.09%，说明洋蓟副产物相当于优质牧草的营养水平；育肥试验还表明，饲喂洋蓟颗粒料和青贮洋蓟的ADG分别为1153.33 g和873.33 g，明显高于青贮玉米的636.67 g（P<0.01），洋蓟副产品饲喂肉牛的效果明显胜过青贮玉米，可大大提高肉牛养殖效益。洋蓟副产物的营养价值相当于优质牧草的水平，值得肉牛养殖业加以利用。

Abstract:

The nutrient evaluation of artichoke, Cynaya scolymus. L and its by-product were overall analyzed to develop feedstuff related to artichoke and to clarify the effects of beef finishing. So the artichoke’s nutrient ingredients were analyzed and 30 BMY bulls were finished. The results showed that the crude protein contents of artichoke by-products were above 10.33%, and that the in vitro dry matter digestibility, NDF and ADF of artichoke power, silage artichoke and artichoke buds were 60.09%, 26.71%, 26.51%; 54.97%, 31.10%, 31.24% and 47.14%, 34.24%, 26.08%, respectively. Moreover, the degradation rate in rumen of artichoke’s by-products were higher than the most of usual forages; the DMD and CPD were 65.14% and 50.09%, respectively, indicating the nutrient levels were similar to high-quality forages. Finishing trials showed that the ADGs treated by artichoke pellet feed of artichoke and silage artichoke were 1 132 g and 838 g, respectively, which were significantly higher than silage corn (620 g) (P<0.01). The finishing effects treated by artichoke’s by-products surpassed the silage whole-plant corn, improving the benefits of beef industry. The nutrient values of artichoke’s by-products were closer to the high-quality forages and good for utilizing in beef industry.