The Growth and Survival Rate of Juvenile Abalone, Haliotis discus hannai at Different Intermediate Culture Type in Net Cage or Indoor Tank

Abstract

This study was conduct to investigate the effect of Intermediate culture types on the growth and survival rate of the abalone, Haliotis discus hannai, in net cage and indoor tank. Intermediate cultures were to determine there that was to setting at marine net cage culture (NCC) in net cage, floor culture (FC), net floor culture (NFC), double shelter culture (DSC) and indoor net cage culture (INCC) in indoor tank, in two replicate. In the growth performance of juvenile abalone reared through intermediate culture, that the absolute growth rate (AGR SL , AGR SB ), daily growth rate (DGR SL , DGR SB ), and specific growth rate (SGR SL , SGR SB ) to the shell length ( SL ) and shell breadth ( SB ) of NCC were higher than those of different groups (P < 0.05). As weight gain (WG), daily weight gain (DWG) and specific weight gain (SWG) to body weight through intermediate culture types in indoor tank was not significant. Also that, survival rate among experimental groups of intermediate culture in indoor tank was not significant. Therefore, these results is showed that should to cultivate for net cage so that intermediate culture of juvenile abalone over 2 cm, accordingly research to effective progress of juvenile abalone intermediate culture in indoor tank be should from various reason as well as feed and rearing condition.

Growth Characteristics of Juvenile Abalone, Haliotis discus hannai by Commercial Artificial Diet Feeding rate during the Winter Season in Indoor Tank

“…북방전복 종묘생산에서는 단위면적 부착성 규조류 등의 먹 이 부족으로 배합사료를 공급하였으나 (한, 1998), 전복 성장 에 효과적인 배합사료 원료의 개발과 함께 절적향상이 이루어 지 지면서 성장 촉진에 배합사료가 중요성이 점차 높아지고 있 다 (Lee et al, 1997;2004;Kim et al, 2003;Cho et al, 2006;2010;Ferreira et al, 2015) (한, 1998;NFRDI, 2008, ;2014). 그러나 양식대상 종에 있어 너무 적은 먹이 공급은 정 상인 성장이 보장될 수 없어 출하 시 정상적인 수입이 확보되 지 않아 경제성에 심각한 영향을 미칠 수 있다.…”