Egg white polymorphisms and economic characters in the domestic fowl
Egg white polymorphisms and economic characters in the domestic fowl
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家禽蛋清多态性及经济性状
DOI：
10.1080/00071666708415657
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发表时间：
1967
影响因子：
2
通讯作者：
V. Buvanendran
中科院分区：
文献类型：
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作者：
V. Buvanendran
在由2个白色来航鸡群（每群约1000只母鸡）和一个380只浅色苏塞克斯鸡群组成的3个封闭群体中，研究了4个蛋白色基因座（Ov、II、III和Tf）与4个生产性状的可能关联。研究了5个日龄体重、3个日龄蛋重、性成熟日龄和2个日龄产蛋量。只有最后两个字符进行了研究，在轻苏塞克斯人口。3个蛋白白色基因座对生产性状的影响达显著水平。在体重和蛋重上，Ov基因座具有加性效应，其中OvA等位基因具有上级效应。对体重的影响仅对成年动物有显著性，即，性成熟后体重这表明部分原因是成熟年龄的差异。在2个群体中，基因座II对产蛋量均呈显著的超显性，而在轻型苏斯群体中，Tf基因座杂合子的产蛋量显著低于Tfb/Tfb纯合子。
Synopsis The possible association between genes at 4 egg white loci, Ov, II, III, and Tf and 4 production characters were studied in 3 closed populations consisting of 2 flocks of White Leghorns, each of about 1000 hens, and a Light Sussex flock of 380 hens. The characters studied were: body weight at 5 different ages, egg weight at 3 different ages, age at sexual maturity and egg number at 2 ages. Only the last two characters were studied in the Light Sussex population. Three egg white loci had statistically significant effects on production traits. With body weight and egg weight, the Ov locus had an additive effect, the OvA allele being superior. The influence on body weight was significant only on adults, i.e., post‐sexual maturity weights. This was shown to be partly attributable to differences in age at maturity. Locus II was significantly overdominant with respect to egg number in 2 populations while the Tf locus heterozygotes were significantly inferior to the Tfb/Tfb homozygotes in the Light Suss...