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An investigation into the reproducibility of triploid brown trout, Salmo trutta L., production using heat shock
Author(s) -
Moffett I J J,
Crozier W W
Publication year - 1995
Publication title -
aquaculture research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.646
H-Index - 89
eISSN - 1365-2109
pISSN - 1355-557X
DOI - 10.1111/j.1365-2109.1995.tb00861.x
Subject(s) - salmo , brown trout , biology , trout , zoology , shock (circulatory) , aquaculture , fishery , fish <actinopterygii> , medicine
A single heat shock of 28°C for 10 min, applied 15 min after water activation to five different batches of brown trout, Salmo trutta L., ova and replicated within one batch produced triploid rates ranging from 22% to 100% and variable survival to hatch ranging from 9.4% to 47.9%. Variability was greater among batches than among replicates. In general, the treatment reduced survival to hatch by 50%. The range of triploid yields obtained from a single heat shock regime is discussed in terms of potential advantages to aquaculture.