Interspecific hybridization of salmonid fish. II. Survival and growth up to the 4th month after hatching in F1 generation hybrids
1982
Blanc, J.M. | Chevassus, B. | Ecologie Comportementale et Biologie des Populations de Poissons (ECOBIOP) ; Institut National de la Recherche Agronomique (INRA)-Université de Pau et des Pays de l'Adour (UPPA) | Laboratoire de physiologie des poissons ; Institut National de la Recherche Agronomique (INRA)
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Afficher plus [+] Moins [-]anglais. Among various combinations attempted with six species of Salmonidae, eight crosses provided viable fry 15 days after hatching. Subsequent survival of these hybrids was studied up to the 4th month after hatching. Reasonably good success rates were exhibited by coho salmon ♀ × chinook salmon ♂ hybrids (50% of control) and, to a much lesser degree, by brown trout ♀ × brook trout ♂ and rainbow trout ♀ × coho salmon ♂ hybrids (20% of control).Body length was measured in the lots which could be raised to fingerling stage. No hybrid superiority in growth was evidenced, with the exception of brown trout ♀ × brook trout ♂ which performed better than the brown trout control lot. The use of such hybrids for practical aquaculture would require evidence of superiority at the adult stage and the possibility of improved larval survival.
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