| 奶牛乳房性状与产奶量及排乳性能的关系 |
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| 引用本文： | 王力生,朱洪龙,杨寿春,方必春,杨海.奶牛乳房性状与产奶量及排乳性能的关系[J].中国牛业科学,2007,33(4):14-17. |
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| 作者姓名： | 王力生 朱洪龙 杨寿春 方必春 杨海 |
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| 作者单位： | 1. 安徽农业大学,动物科技学院,安徽,合肥,230036
2. 安徽淮南乳品公司,安徽,淮南,232000 |
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| 摘 要： | 选择胎次相同,泌乳月份相近的经产荷斯坦牛197头,分别测定其后乳房宽度,后乳房深度,后乳房高度,乳房纵沟深,乳头直径,乳头长度等6个高遗传力性状,并与排乳性能及产奶量的相关性进行研究.结果表明:奶牛乳房纵沟深,乳头直径,乳头长度等6个高遗传力性状,并与排乳性能及产奶量的相关性进行研究.结果表明:奶牛乳房纵沟深、后乳房宽度、乳头长、乳头直径与排乳速度有极显著正相关(P＜0.01),后乳房高度与排乳速度呈现中等正相关(P＜0.05),平均排乳时间与后乳房宽度呈现显著正相关(P＜0.05);日产乳量与乳头长度呈中等负相关(P＜0.05),与乳房纵沟深、乳头直径呈显著正相关(P＜0.05),305 d产乳量与乳房纵沟深、后乳房宽度呈极显著强正相关(P＜0.01),与乳头直径呈显著正相关(P＞0.05),与乳头长度有极显著负相关(P＜0.01).
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| 关 键 词： | 奶牛 乳房性状 产奶量 排乳性能 奶牛 乳房性状 产奶量 排乳 性能 关系 Cattle Production Traits Analysis 负相关 产乳量 时间 速度 牛乳房 结果 研究 相关性 遗传力 长度 |
| 文章编号： | 1001-9111（2007）04-0014-04 |
| 收稿时间： | 2006-12-10 |
| 修稿时间： | 2006-12-10 |
Correlation Analysis of Udder Traits and Production in Dairy Cattle |
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| WANG Li-sheng,ZHU Hong-long,YANG Shou-chun,FANG Bi-chun,YANG Hai.Correlation Analysis of Udder Traits and Production in Dairy Cattle[J].China Cattle Science,2007,33(4):14-17. |
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| Authors: | WANG Li-sheng ZHU Hong-long YANG Shou-chun FANG Bi-chun YANG Hai |
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| Institution: | 1. College of Animal Science and Technology, Anhui Agricultural University, Hef ei , Anhui 230036, China 2. Anhui Huainan Dairy Company, Huainan, Anhui 232000, China |
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| Abstract: | Six higher heritability traits including udder width,rear udder depth,rear udder height,udder longitudinal furrow depth,teat diameter and length of 197 postparous cows with the same parity and similar lactation month were measured to investigate the relationships between udder traits and milk production. The results indicated that the velocity of milk ejection had a highly positive correlation with the udder longitudinal furrow depth,rear udder width,teat length and teat diameter(P<0.01),a moderate positive correlation between the velocity of milk ejection and rear udder height(P<0.05),there was a significant positive correlation between average milk ejection time and rear udder width(P < 0.05);daily milk production was negatively correlated with teat length(P < 0.05),but positively with teat diameter and udder longitudinal furrow depth(P < 0.01);305 d milk production displayed a strong positive correlation with udder longitudinal furrow depth,rear udder width and teat diameter(P < 0.05),and a significant negative correlation with teat length(P<0.01). |
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| Keywords: | Dairy cattle Udder traits Milk production Milk ejection |
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