4.1 Article

OBSERVATION ON LARVAL DEFORMITY DURING INDUCED SPAWNING OF WALKING CATFISH, CLARIAS BATRACHUS (ACTINOPTERYGII: SILURIFORMES: CLARIIDAE), AT DIFFERENT COMBINATIONS OF HUMAN CHORIONIC GONADOTROPIN DOSE AND LATENCY PERIOD

期刊

ACTA ICHTHYOLOGICA ET PISCATORIA
卷 39, 期 1, 页码 43-45

出版社

WYDAWNICTWO AKAD ROLNICZEJ W SZCZECINIE
DOI: 10.3750/AIP2009.39.1.08

关键词

Clarias batrachus; deformed larvae; latency period; human chorionic gonadotropin; hCG

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Five combinations of human chorionic gonadotropin (hCG) dose and five latency periods were evaluated to observe the pattern of deformed larvae among the hatchlings in walking catfish, Clarias batrachus (L.). A higher percentage (7%-12%) of deformed larvae were observed at 1000, 2000, and 5000 IU . kg(-1) with 14-23 h latency combinations. The results of the study indicated that 3000 IU . kg(-1) with 14-23 h and 4000 IU . kg(-1) with 14-17 h latency combinations were preferable to reduce the deformed larvae (4%-6%) among the hatchlings during induced spawning of the catfish.

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