JP5522395B2 - 魚類の飼育方法 - Google Patents
魚類の飼育方法 Download PDFInfo
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- JP5522395B2 JP5522395B2 JP2010215522A JP2010215522A JP5522395B2 JP 5522395 B2 JP5522395 B2 JP 5522395B2 JP 2010215522 A JP2010215522 A JP 2010215522A JP 2010215522 A JP2010215522 A JP 2010215522A JP 5522395 B2 JP5522395 B2 JP 5522395B2
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- fish
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/80—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
- Y02A40/81—Aquaculture, e.g. of fish
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- Farming Of Fish And Shellfish (AREA)
Description
(1)容積60Lの水槽を2つ用意し、それぞれに、孵化後2日目のティラピア(Oreochromis niloticus)の稚魚100匹を入れ、60日間飼育した。飼育水槽の水温は、それぞれ37±0.5℃(温熱処理群)および27±0.5℃(対照群)に保持した。なお、それぞれの水槽には、ブロアーで十分空気を吹き込み、また、ティラピアの餌は、魚類稚魚用餌料を1水槽当たり2〜5gとした。60日間飼育後の各群の体重および生存率並びに不妊化率の結果を表1に、また飼育45日間の魚体重の経時変化を図1に示す。
[log(最終体重)−log(初体重)]×100/飼育日数
*2 肥満度: 最終体重×100/最終容積
*3 飼料効率: 全消費飼料/全体重
*4 GSI(ゴナドソマティク・インデックス):
全生殖腺重量×100/全体重
上記実施例1の養殖により得たティラピアの、温熱処理群および対照群について、それぞれの雌魚および雄魚を解剖し、その生殖器官(卵巣および精巣)を観察した。また、それらの組織についても、常法により染色し、光学顕微鏡(×20〜400)により観察した。
経済的にも、また飼育の管理の点でも極めて有利なものである。
Claims (4)
- 孵化前2日から孵化後160日後の稚魚を、36〜42℃の水温下で、40〜60日間飼育した後、更に24〜30℃の温度で飼育することを特徴とするスズキ目シクリッド科魚類の生殖細胞の死滅化ないしは縮小化による肥育方法。
- 24〜30℃の温度での飼育を、3〜24ヶ月間行う請求項1記載のスズキ目シクリッド科魚類の生殖細胞の死滅化ないしは縮小化による肥育方法。
- 不妊魚を得るものである請求項1または2記載のスズキ目シクリッド科魚類の生殖細胞の死滅化ないしは縮小化による肥育方法。
- 一般飼育に比べ、同じ期間で体重が1.3〜2倍大きい魚を得るものである請求項1ないし3の何れかの項に記載のスズキ目シクリッド科魚類の生殖細胞の死滅化ないしは縮小化による肥育方法。
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JP2010215522A JP5522395B2 (ja) | 2010-09-27 | 2010-09-27 | 魚類の飼育方法 |
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JP2010215522A JP5522395B2 (ja) | 2010-09-27 | 2010-09-27 | 魚類の飼育方法 |
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JP2012065634A JP2012065634A (ja) | 2012-04-05 |
JP5522395B2 true JP5522395B2 (ja) | 2014-06-18 |
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JP2010215522A Active JP5522395B2 (ja) | 2010-09-27 | 2010-09-27 | 魚類の飼育方法 |
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Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
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KR101318058B1 (ko) | 2012-11-26 | 2013-10-15 | 전라남도 | 일정량의 정소를 함유한 수컷 참조기 양식 굴비 제조방법 |
CN103931538B (zh) * | 2014-05-15 | 2015-09-30 | 云南省渔业科学研究院 | 一种野生西昌白鱼的人工繁殖方法 |
KR102319352B1 (ko) * | 2021-02-03 | 2021-10-29 | 바이오메디팜 어업회사법인 주식회사 | 첨연어의 수컷화 비율을 높이는 비호르몬적 방법 |
CN113016670B (zh) * | 2021-03-30 | 2023-02-03 | 海南省海洋与渔业科学院 | 一种罗非鱼咸水养殖方法 |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
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JPH0391425A (ja) * | 1989-09-05 | 1991-04-17 | Kinoe Taaminaru Kk | 不妊化マス類の人工養殖方法 |
JP4997412B2 (ja) * | 2007-11-26 | 2012-08-08 | 岩手県 | 魚類の性統御方法 |
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