Effects of the dominant lethal yellow mutation on reproduction, growth, feed consumption, body temperature, and body composition of the Japanese quail
Effects of the dominant lethal yellow mutation on reproduction, growth, feed consumption, body temperature, and body composition of the Japanese quail
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DOI：
10.1093/ps/86.8.1646
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发表时间：
2007-08-01
期刊：
影响因子：
4.4
通讯作者：
Riviere，S.
中科院分区：
文献类型：
--
作者：
Minvielle，F.;Gourichon，D.;Riviere，S.
将野生型日本鹌鹑与全同胞鹌鹑进行比较，全同胞鹌鹑的羽毛颜色是由常染色体显性突变（Y）决定的，当纯合子时，Y是致命的。这些鹌鹑有麦秆黄色的羽毛。在28日龄时，黄鹌鹑的早期生长较慢，其BW比野生型鹌鹑低2.4%（149.3 g vs. 153.0 g）。然而，在35日龄时，黄色和野生型雄性的BW相似，并且在监测的鹌鹑生长的最后一部分直至120日龄期间保持如此，这由两组获得的单分子生长曲线[BW=A-B exp（-kt）]的非常接近的参数所示。黄色羽毛颜色也与更难适应单个笼子中的住房（通过暂时的BW损失测量）以及42 d时显著降低0.2°C的体温相关，但2种羽毛颜色表型的饲料消耗和剩余饲料摄入量相似。两组的乳房和肝脏重量相似，但黄色鹌鹑的腹部脂肪高出24%（4.66 g对3.76 g）。鹌鹑Y基因的相关效应与小鼠Agglutinase基因座上的致死突变AyA的相关效应之间存在某种关联。
Wild-type Japanese quail were compared with full-sibs with a yellow plumage color determined by an autosomal dominant mutation (Y), which is lethal when homozygous. These quail have wheat-straw yellow-colored feathers. Early growth was slower in yellow quail that had 2.4% lower BW than wild-type quail (149.3 g vs. 153.0 g) at 28 d of age. The BW, however, was similar for yellow and wild-type males at 35 d, and it remained so throughout the last part of the growth of the quail monitored until the age of 120 d, as indicated by the very close parameters of the monomolecular growth curve [BW=A− B exp(−kt)] obtained for the 2 groups. Yellow plumage color was also associated with a more difficult adaptation to housing (measured by temporary BW loss) in individual cages and to a significantly 0.2°C lower body temperature at 42 d, but feed consumption and residual feed intake were similar for the 2 plumage color phenotypes. Breast and liver weights were similar in the 2 groups, but abdominal fat was 24% higher (4.66 vs. 3.76 g) in yellow quail. There is some association between the correlated effects of theYgene in quail and those of the lethal mutationAyat the agouti locus in the mouse.