コリデール種2才緬羊の体重、汚毛量,毛長間における遺伝的相関

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概要

• 論文の詳細を見る

• The data used m this study were obtained from Corriedale yearling ewes raised at the Department of Animal Husbandry, Hokkaido National Agricultural Experiment Statich during 7 years from 1951 to 1957. They were analyzed to determine the genetic, environmental and phenotypic correlations among the following four economic characters, body weight before and after shearing, greasy fleece weight and staple length. The *-orrelations among paternal half-sibs were used with the records of 283 yearlin,g ewes. The correlations among paternal intra-sire were used with 206 pairs on which records were available on both the daughter and dam. Heritabilities estimated from paternal intra-sire correlations were 0.41. 0.55.0.35 and, O.37 for body weight before and after shearing, greasv. fleece weight and staple length, res pectively. When correlations were estimated among paternal half-sibs, genetic, environmental and phenotypic correlations between body weight before shearing and other characters ; body weight after shearing and greasy fleece weight showed middle or high values (near ,O. 55-0. 72), and correlations between body weight after shearing and other characters ; staple length and greasy fleece weight showed low values(near O.20-0.37)with the excepticn of positive high genetic correlations (near O.74) between the first and staple length. Also correlations between staple length and other characters; body weight before shearing and greasy fleece weight showed pcsitive low (near O.17-0.26) and middle values (near O.43) with the exception of positive very low genetic correlations (near O.004) between the first and body weight before shearing. When correlaticns were estimated among intra-sire, genetic, environmental and phenotypic correlations between body weight before and after shearing showed positive middle or high values (near O.64-0.75). Also each genetic correlation among characters 'with the exception of correlations between above two characters showed positive middle values. (near O.41-0.45).

• 日本育種学会の論文
• 1962-07-05

著者

• 武田 功

  Hokkaido National Agricultural Experiment Station

• 堅田 彰

  Hokkaido National Agricultural Experiment station

関連論文

• コリデール種2才雌緬羊の選抜指数
• コリデール種2才緬羊の体重、汚毛量,毛長間における遺伝的相関
• コリデール種2才緬羊の形質のヘリタビリティ
• コリデール種緬羊の汚毛量,毛長,体重のRepeatability
• コリデール種雌緬羊の汚毛量,毛長,体重並びに各形質間の関係に対する年令の影響

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