SMOLTIFICATION GUIDANCE METHOD OF SALMON/TROUT KIND YEARLING

To provide a salmon/trout kind yearling smoltification guidance method capable of shortening a usual two-year period required for smoltification of yearlings of incubated salmon/trout kind to an approximate six-month period.SOLUTION: A salmon/trout kind yearling smoltification guidance method has: a...

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Bibliographic Details
Main Authors MATSUBARA SO, SUZUKI NOBUO, OGISO SHOZO, NAGAMI ARATA
Format Patent
LanguageEnglish
Japanese
Published 07.12.2023
Subjects
AGRICULTURE
ANIMAL HUSBANDRY
CARE OF BIRDS, FISHES, INSECTS
FISHING
FORESTRY
HUMAN NECESSITIES
HUNTING
NEW BREEDS OF ANIMALS
REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR
TRAPPING
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Summary:To provide a salmon/trout kind yearling smoltification guidance method capable of shortening a usual two-year period required for smoltification of yearlings of incubated salmon/trout kind to an approximate six-month period.SOLUTION: A salmon/trout kind yearling smoltification guidance method has: a fresh water rearing step which rears incubated yearlings in rearing fresh water in a rearing tank of blue atmosphere; a first acclimation step which changes the rearing water from 0 practical salinity to 10; and a second acclimation step which maintains the rearing water within the range between 10 and 20 of practical salinity.SELECTED DRAWING: Figure 1 【課題】通常、孵化したサケ・マス類の当歳魚のスモルト化に要する期間が丸２年かかるところを、約６ヶ月に短縮できる、サケ・マス類の当歳魚のスモルト化誘導方法を提供する。【解決手段】飼育槽内を青色雰囲気とし、孵化後の当歳魚を淡水の飼育水で飼育する淡水飼育工程と、前記飼育水を、実用塩分０から１０に変化にさせる第一馴致工程と、前記飼育水を、実用塩分１０から２０の範囲に維持する第二馴致工程と、を有する、サケ・マス類のスモルト化誘導方法。【選択図】図１
Bibliography:Application Number: JP20220086541