| 简阳大耳羊种公羊引入喀斯特高寒山区适应性研究 |
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| 引用本文： | 张贵强,蒋会梅,曹娟.简阳大耳羊种公羊引入喀斯特高寒山区适应性研究[J].畜牧与饲料科学,2013,34(9):21-22,29. |
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| 作者姓名： | 张贵强 蒋会梅 曹娟 |
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| 作者单位： | 贵州省毕节市畜牧技术推广站,贵州 毕节,551700 |
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| 摘 要： | 将简阳大耳羊种公羊引入喀斯特高寒山区,与贵州黑山羊进行杂交,以改良贵州黑山羊中心产区的肉用性能。试验对引入的简阳大耳羊种公羊进行了适应性研究,主要包括行为学观察、生产性能与生理指标的测定、抗病能力观察以及繁殖性能测定。结果表明:①行为学研究得出,放牧条件下简阳大耳羊种公羊反刍时间长于贵州黑山羊;②在引入初期,部分简阳大耳羊种公羊出现了咳嗽症状,经治疗后均痊愈,发病率低于8%,无死亡发生;③简阳大耳羊种公羊在引入2个月后体质量增加最显著,平均体质量增加约11 kg,引入1年后简阳大耳羊种公羊平均体质量增加16.69 kg,为引入时的133.01%,高于贵州黑山羊的增长速度;④引入的简阳大耳羊种公羊主要生理指标正常,与原产地的生理指标基本相符;⑤简阳大耳羊种公羊与贵州黑山羊交配公母比例为（1∶35）1∶40,受胎率在97%以上,羔羊成活率为92.5%,未出现难产。该试验得出,简阳大耳羊种公羊可以作为喀斯特高寒山区发展养羊业的优良杂交父本进行推广。
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| 关 键 词： | 简阳大耳羊种公羊 贵州黑山羊 喀斯特高寒山区 繁殖性能 |
Research on Adaptability of Jianyang Da'er Goat Introducing into Karst Alpine Area |
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| ZHANG Gui-qiang
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JIANG Hui-mei
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CAO Juan.Research on Adaptability of Jianyang Da'er Goat Introducing into Karst Alpine Area[J].Animal Husbandry and Feed Science,2013,34(9):21-22,29. |
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| Authors: | ZHANG Gui-qiang JIANG Hui-mei CAO Juan |
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| Institution: | (Bijie District Animal Husbandry Station,Bijie 551700,China) |
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| Abstract: | Jianyang Da＇er goat were introduced into Karst alpine areas and crossed with Guizhou black goat to improve the performance of Guizhou black goat in the central area. The adaptability of introduced Jianyang Da＇er goat was observed, including the observation of behavior, the detection of production performance and physiological indexes, the observation of disease resistant ability and reproductive performance. The behavior observation result showed that the rumination time of grazing Jianyang Da＇er goat was longer than Guizhou black goat. Some Jianyang Da＇ er goat appeared cough in the early stage of introduction and were cured after treatment, and the incidence rate was less than 8%, no death. The quality of Jianyang Da＇ er goat was increased significantly in two months after the introduction, and the average body weight was increased by about 11 kg; the average body weight of Jianyang Da＇er goat was increased by 16.69 kg in one year after the introduction, which accounts for 133.01% of the introduction and higher than the growth rate of Guizhou black goat. Main physiological indexes of the introduced Jianyang Da＇er goat were normal and were basically same as the physiological indexes of the country of origin. The mating ratio of male Jianyang Da＇er goat and female Guizhou black goat mating ratio was between 1：35 and 1：40, and the pregnancy rate was more than 97%, and the survival rate of lamb was 92.5%, no dystocia. Thereby, Jianyang Da＇er goat can be used as excellent hybrid male for the development of Karst alpine area sheep industry. |
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| Keywords: | Jianyang Da＇er goat Guizhou black goat Karst alpine areas reproductive performance |
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