書誌事項
- タイトル別名
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- Performance of the Progeny of Natural Tetraploid Loaches in Long-Term Communal Rearing Experiments under a Laboratory Condition
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抄録
In the loach Misgurnus anguillicaudatus, triploid (3n) and tetraploid (4n) individuals were produced by crosses using diploid (2n) gametes of natural tetraploids, which had been found in the specimens obtained from fish dealers. Long-term communal rearing experiments from the age of 1 month old to 3 years 1 month old were carried out among diploid (2n female×2n male), triploid (4n×2n) and tetraploid (4n×4n) to compare their performance under a laboratory condition. At the end of experiments, significantly retarded growth was observed in tetraploids and they showed significantly lower body length/head length proportion than diploid and triploid individuals. Triploid females exhibited less developed gonad than tetraploid and diploid individuals, when compared gonad somatic index (GSI) . Triploid and tetraploid males showed lower GSI than diploid males, but tetraploid males gave better gonadal development than triploid males.
収録刊行物
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- 水産増殖
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水産増殖 52 (1), 91-98, 2004
日本水産増殖学会
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詳細情報 詳細情報について
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- CRID
- 1390001204718239872
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- NII論文ID
- 10012720199
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- NII書誌ID
- AN00124667
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- ISSN
- 21850194
- 03714217
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- HANDLE
- 2115/35207
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- NDL書誌ID
- 6899350
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- IRDB
- NDL
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可