Growth Performance and Condition Factor of Juvenile Milkfish (Chanos chanos) Cultured in a Marine Pen in Relation to Body Size and Temperature

JARQ : Japan Agricultural Research Quarterly
ISSN 00213551
書誌レコードID(総合目録DB) AA0068709X

The growth performance and condition factor (CF) of milkfish (Chanos chanos) in relation to body size and temperature were investigated in a shallow marine pen culture system in coastal waters of the Philippines. Three common models were tested to determine the best-fit model for the growth of milkfish, and the logistic model was found to be best for both weight-based and length-based growth. Daily specific growth rate in weight (DSGRw) and length (DSGRL) were positively correlated with water temperature, while both DSGRw and DSGRL were correlated negatively with the size of the fish, which supported the fit of the growth model. CF of milkfish exhibited a positive correlation with the feed conversion ratio and significant seasonal variations. The ratio was lower in the fast growth season (dry season) than in the slow growth season (rainy season). By integrating these controversial findings, we were able to posit that low temperature and inefficient feeding makes ‘fat’ fish and vice versa. This may be explained by changes in proximate body composition (e.g., protein and water content) and the change in metabolic rate brought about by different water temperatures.

作成者 Masashi KODAMA Rose Ann DIAMANTE Nerissa D. SALAYO Raisa Joy G. CASTEL Joemel G. SUMBING
公開者 Japan International Research Center for Agricultural Sciences
受付日 2019-11-18
受理日 2020-07-13
国立情報学研究所メタデータ主題語彙集(資源タイプ) Article
開始ページ 191
終了ページ 200
DOI 10.6090/jarq.55.191
言語 eng