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| 不同精粗比对西杂公牛生长发育的影响 | |
| 引用本文： | 刘晓辉,田军德,刘超,刘成理,辛亚平.不同精粗比对西杂公牛生长发育的影响[J].中国牛业科学,2012,38(3):37-39. |
| 作者姓名： | 刘晓辉 田军德 刘超 刘成理 辛亚平 |
| 作者单位： | 1. 天津市兽药饲料监察所,天津,300210 2. 陕西陇县牙科乡兽医站,陕西陇县,721200 3. 陕西省洛川县畜牧局,陕西洛川,727400 4. 天津恒基利德兽药有限公司,天津,300221 5. 西北农林科技大学动物科技学院,陕西杨凌,712100 |
| 基金项目： | 国家863项目[2010AA0Z101][2011AA100307];陕西省农业攻关项目[2010K02-13];国家肉牛牦牛产业技术体系CARS-38资助 |
| 摘 要： | 目的]本试验旨在研究不同日粮精粗比对西杂青年公牛体重及体尺(体高、体长、胸围)的影响,为西杂公牛育肥提供理论依据。方法]选择18头9月龄平均体重约270kg的西杂公牛,随机分为1、2、3组,分别饲喂精粗比为45∶55(低)、50∶50(中)和55∶45(高)的3种日粮。结果]在日粮种类相同的情况下,西杂牛的日增重受精料水平的影响较大,但体尺的日增量受精料水平的影响较小。结论]不同精粗比日粮的西门塔尔公牛的日增重不同,西门塔尔公牛采食精粗比较高的日粮,其增重速度较快。 |
| 关 键 词： | 西杂牛 精粗比 育肥 |
The Effects of Different Ration Levels on Growth and Development of Simmental Cross-bull |
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| LIU Xiao-hui,TIAN Jun-de,LIU Chao,LIU Cheng-li,XIN Ya-ping.The Effects of Different Ration Levels on Growth and Development of Simmental Cross-bull[J].China Cattle Science,2012,38(3):37-39. | |
| Authors: | LIU Xiao-hui TIAN Jun-de LIU Chao LIU Cheng-li XIN Ya-ping |
| Institution: | 1. The supervise institution of Tianjin veterinary and feed, Tianjin 300210; 2. Yake Veterinary Station ,Long County ,shaanxi 721200 3. Luochuan County Bureau of Animal Husbandry Luochuan, Shaanxi 7274004. Tianjin Hengjilide Veterinary Drugs Co. , Ltd. , Tianj in 300221 ; 5. College of Animal Science and Technology, Northwest A ＆ F university , Yang ling , Shaanxi 712100) |
| Abstract: | Objective]The purpose aims to study the effects of different dietary forage to concentrate ratio on body weight and body size （body height, body length,chest circumference） of Simmental young bull. Method] Nineteen 6 months old male Simmental bull with the average weight about 270 kg were randomly divided into three groups and fed concentrate to forage ration of 45 ： 55 （low）, 50 ： 50 （middle） and 55 ： 45 （high） of three kinds of diets, coarse straw hay and corn silage for the trial of 3 months. Result]In the case of the same diet type, daily weight gain of Simmental cross-cattle had material influenced with the level of fertilization,but the body size of Simmental crosscattle had small influence on the level of fertilization. Conclusion] The average daily gain of Simmental bull was different by concentrate to forage ratio diets. The Simmental bulls had faster weight gain by feeding high concentrate to forage ratio diets. |
| Keywords: | Simmental cross bull concentrate to forage ration fattening |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |