第11卷‧第12期 - 2,
198412
, pp. 1479-1487
台灣仿仔雞灰藍色基目個案研究
- 作者：
魏榮展
- 作者服務機構：
國立台灣大學畜牧學系畜產研究室
- 中文摘要：
在 、E/－、B1/ 之毛色基因型組合下，表現出灰藍色羽毛；
其外觀之特異性在於 E- 基因應表現的黑色羽毛悉數被 B1 基因稀釋成灰藍色，但
與 E- 基因相關連的黑色腳脛仍保持原色。
本試驗調查此紅色可尼西品系在引入白蘆花血統後，部分個體毛色遺傳型組合
呈 B1/－ ，但 B1－ 基因對紅棕類黑素無稀釋作用，故使紅
色可尼西部分個體成為 B1－ 基因之攜帶者。當以紅色可尼西全部的品系組成試交的
公系配以純黑之澳洲黑母系，可得兩類子代：黑色（E/－、）、灰藍色（E/
－、B1/）；並藉此子代估計此紅色公系親代之 B1－ 基因頻率為0.049±0.00128
，其中另分別估計 US-83 品系、US-84 品系得0.024、0.082。
對灰藍色與黑色仿仔肉?前期生長速率測定，顏色之內並無顯著差異性，故
B1－ 基因在生長速率上不具影響力。t
- 英文摘要：
The phenotype of an individualwith the plumage color of the genotypiccombination, E/－, B1/,is blue. The speciality in appearance isshown that B1-gene would completelydilute the black of E-gene into theblue; however, the black shank colorcorrelated with the E-gene is still notdiversified. The B1-gene of Red Cornish in thisexperiment came from some WhitePlymouth Rock strain and the formermerely becomes a blue gene carrierbecause it is ineffective against phaeo-melanin. As the ratio of the two kinds ofthe progeny, produced with pooledsemen from all Red Cornish strains,could estimate the B1-gene frequency,0.049±0.00128 in population. Two ofthem, US-83 and US-84 strains, are0.024 and 0.082 respectively. About the growth rate test, theblue and black commercials have nosignificant difference, on growth at 8weeks of age between colorations, sothe B1-gene couldn't affect the growthrate.
- 中文關鍵字：
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- 英文關鍵字：
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