コリデール種2才緬羊の形質のヘリタビリティ

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概要

• 論文の詳細を見る

• The records of wool production and body weight were obtained at first shearing time of yearling ewes on Corriedale sheep raised at the Department of Animal Husbandry, Hokkaido National Agricultual Experiment Station, Hokkaido the during the period from 1951 to 1957. They were analysed to determine the heritability estimates of greasy fieece weight, staple length, and body weight before and after shearing for this flock. The paternal half-sib correlation method was used with the records of 283 yealing ewes. The pa.ternal intra-sire daughter on dam regressions method was used with 206 pairs on which records were available on both the daughter and dam. Most of the yealing ewes were produced in the early stages of inbreeding. The average heritability estimates obtained from the paternal half-sib correlation method were O.33 and O.29 for body weight before and after shearing time, O.34 for greasy fieece weight and O. 39 for staple length. The average heritability estimates obtained from the paternal intra-sire daughter-on-dam regression method were O.33 and O.42 for body weight before and after shearing time, O.25 for greasy fleece weight and O.31 for the staple length. When the values iound by two estimated methods as above described were averaged for each four character the heritability estimates for the additive portion of the inheritance fcr these characters in this flock were O.33 and O.36 for body weight before and after shearing, O.30 for greasy fleece weight and O.35 for staple length

• 日本育種学会の論文
• 1961-12-25

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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