蛋公鸡去势对行为和生长发育的影响

来源 :中国畜牧兽医学会家禽学分会第十七次全国家禽学术研讨会 | 被引量 : 0次 | 上传用户：sidiss

【摘要】

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【作者】

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张俊妍刘敬寿杨旭凯黄亚阳高亚辉罗璇宁中华

【机构】

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中国农业大学动物科技学院,畜禽育种国家工程实验室北京,100193 北京中农榜样蛋鸡育种有限责任

【出处】

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中国畜牧兽医学会家禽学分会第十七次全国家禽学术研讨会

【发表日期】

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2015年11期

【关键词】

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蛋公鸡去势手术行为学生长性状

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本试验选取体重相近的11周龄蛋鸡公鸡共28只,随机分成对照组(未进行去势手术,14只)、半阉组(摘除1个睾丸,6只)及全阉组(摘除2个睾丸,8只)三组.试验期为6周.在每周同一时间进行行为学视频拍摄和分析,并测定生长形状指标.结果显示:行为学表现方面,去势对公鸡的攻击、啄物、啄羽等行为学表现等无显著影响(P＞0.05),但公鸡一般行为(饮水、采食、伸脚)发生频次有显著变化.生长性能方面,去势对鸡冠和肉髯的生长发育有显著影响,试验组的鸡冠、肉髯发育指标显著小于对照组(P＜0.05).去势对公鸡的屠宰率、半净膛率、全净膛率、胸肌率等无显著影响(P＞0.05);但半阉组的腿肌率高于对照组(P＜0.01).半阉组的胸肌肉色优于对照组和全阉组,去势具有提高胸肌剪切力的趋势.

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蛋公鸡去势对行为和生长发育的影响

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