アユの体重に関する選択反応および実現遺伝率

• 辻村 明夫

  和歌山県内水面漁業センター

書誌事項

タイトル別名

• Selection Response and Realized Heritability of Body Weight in Ayu, Plecoglossus altivelis.
• アユ ノ タイジュウ ニ カンスル センタク ハンノウ オヨビ ジツゲン イデンリツ

抄録

Truncation selection of body weight was performed to esitmate the selection response in Ayu Plecoglossus altivelis. Truncation selection had been carried out until the 4th generation to a large selected line and until the 3rd generation to a small selected line. In the 3rd generation, the body weight of the large selected line was 1.49 times larger than that of the non-selected line, and the body weight of the small selected line was 0.51 times smaller than that of the non-selected line.<BR>The average realized heritability, which was dertermined by the ratio of the body weight of the large and small selected lines to the non-selected line in each generation, was 0.370 in the large selected line and 0.580 in the small selected line.<BR>In several rearing experiments, the large selected line showed better performance in body weight than other lines in the 3rd generation. These results suggest that truncation selection is effective to improve growth performance in Ayu.

収録刊行物

• 水産増殖

  水産増殖 48 (3), 571-577, 2000

  日本水産増殖学会

キーワード

• Ayu
• Body weight
• Selection response
• Realized heritability

詳細情報

• CRID: 1390001204718348288
• NII論文ID: 10006325224
• NII書誌ID: AN00124667
• DOI: 10.11233/aquaculturesci1953.48.571
• ISSN: 21850194
• ISSN: 03714217
• NDL書誌ID: 5536797
• Web Site: https://agriknowledge.affrc.go.jp/RN/2010620348
• Web Site: http://id.ndl.go.jp/bib/5536797
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I5536797
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • IRDB
  • NDL
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可