| 杂交组合提高肉牛生产能力的效果研究 |
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| 引用本文： | 宁布.杂交组合提高肉牛生产能力的效果研究[J].中国牛业科学,1999,25(3):25-26. |
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| 作者姓名： | 宁布 |
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| 作者单位： | 内蒙古扎鲁特旗畜牧工作站 |
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| 摘 要： | 在非科尔沁牛育种区选择饲养条件好，冷配基础好和五个牧场，进行不同杂交组合生产性能的研究，并地加系ｘ西杂这一组合的生产性能做了全面的测定分析，研究发现，另系ｘ西杂牛后代公牛６月龄、１２月龄、１８月龄、２４月龄的体重分别为１６３．４，２５６．７，３７３．８和５００．１ｋｇ，该杂交组合后裔５５０天平均日增重的杂咎优势率为１７．４％，加系西牛ｘ加重西牛后代５５０天平均日增重是所有组合中最高的为０．７０６ｋ
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| 关 键 词： | 杂交组合 日增重 西杂牛 肉牛 |
Comparison of Crossing Combinations on Productivity of Beef Cattle |
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| Ning Bu.Comparison of Crossing Combinations on Productivity of Beef Cattle[J].China Cattle Science,1999,25(3):25-26. |
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| Authors: | Ning Bu |
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| Abstract: | Five farms with good feeding condition and better AI extension in non-breeding region of Keerqing cattle were selected to study the productivity of different crossing combinations, specifically for offsprings of Canidian Simmental x Simmental. The body weight of male cattle of this combination at 6, 12, 18 and 24 month was 163.4,256.7,373.8, and 500.1 kg, respectively, heterosis rate of 500 d average daily gain was 17.4%. The 500 d average daily gain of progeny of Canadian Simmental was the highest in all combinations (0.706 kg/d). |
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| Keywords: | Crossing combination Average daily gain Simmental crosses |
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