Position: Home > Articles > THE UDDER TRAITS AND THEIR HERITABILITY OF DAIRY COWS
Chinese Journal of Animal and Veterinary Sciences
1981
(1)
67-72
奶牛乳房形态的遗传力
作 者：
陈幼春;于汝梁;吴凤春;许尚忠;唐鼎恩;王兆卓;王毓英;姚化人;杨继尧;赵淑卿
摘 要：
本文系北京市北郊农场畜牧一队202头黑白花奶牛乳房性状及其遗传力的测定结果。按中国农科院畜牧研究所提出的奶牛乳房鉴定符号对乳房进行分类,包括乳房形状,细致度和质地,以及乳房静脉曲张度四种,在乳房形状中,盆状的占18.8%,碗状的占53.9%,圆形的占28.2%;在各类细致度中,细致的占60.0%,一般的占34.5%,粗糙的占5.5%;在乳房静脉中发达的占到29.7%,一般的占54.3%,差的占16.6%,质地中腺质的占95.5%。经测定乳房形状的遗传力为0.15,细致度为0.13,质地为0.07,乳房静脉曲张程度为0.0022。按同父同母的姊妹间观察结果,发现其相似性很好。母方的乳房性状遗传力更强些。荷斯坦牛对我国黑白花乳房似有改进作用。
译 名：
THE UDDER TRAITS AND THEIR HERITABILITY OF DAIRY COWS
作 者：
Chen Youchun Yu Ruliang Wang Yuying Wu Fengchun Xu Shangzhong Tang Dingen Wang Zhaozhuo (Institute of Animal Science,Chinese Academy of Agricultural Sciences.)
Yao huaren Yang Jiyao (Beijiao Dairy Farm,Beijing)
Zhao Shuqing (Dong-bei-wang Dairy Farm,Beijing)
摘 要：
The heritability of udder traits was investigated on 202 cows,and 127 of them were daughters of six bulls.The udder traits were evaluated by means of the judging scores method for udders pro- posed by our Institute. Heritabilities for the shape,guality and texture of udders,and the quality of mammary vein we- re 0.15,0.13,0.07 and nil(0.0022)respectively.The basin-shaped udder is the most desirable type among all types of udders.Maternal effects on the udder traits of daughters were greater than the pa- ternal.The results obtained here are similar to those reported by Zubrianov.Scores of the udder trait were suggerted as an item in the type-performance card.According to the results of this preliminary inverstigation,the Holstein Friesians,semens of which were imported from North America,seemed to be able to improve the udder shape of the Chinese cows studied.
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