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Development of replacement diets for improved growth and survival rate of scallop juvenile Patinopecten yessoensis
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  • Journal title : The Korean Journal of Malacology
  • Volume 28, Issue 2,  2012, pp.137-143
  • Publisher : The Malacological Society of Korea
  • DOI : 10.9710/kjm.2012.28.2.137
 Title & Authors
Development of replacement diets for improved growth and survival rate of scallop juvenile Patinopecten yessoensis
Nam, Myung-Mo; Park, Jin-Chul; Park, Mi Seon; Lee, Chu;
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This study was done to examine the effect of several diets (Phytoplankton = PHY, Shellfish Diet 1800 = INS, Oil type = OTE, Powder type = PTE) on growth, survival rate and biochemical composition of scallop juvenile Patinopecten yessoensis. The highest survival rate were observed in PTE + PHY (90%). The highest shell length and shell height was observed in PHY and PTE + PHY diet (P > 0.05). The growth with PTE and OTE diet was the lowest in shell length and shell height (P < 0.05). On the other hand, the shell width and meat weight were highest in PHY and PTE + PHY, while the lowest in PTE and OTE (P < 0.05). The content of fatty acids such as DHA and n-3 PUFA levels was significantly higher in the juvenile fed on PTE + PHY than in those fed on PHY and INS alone. Also, the total protein ranged 55.5 to 65.2% in PHY + INS, while 44.8%, 47.9% in PTE and OTE respectively. The RNA and DNA contents were the highest in PHY and PTE + PHY, while the lowest in PTE and OTE (P < 0.05). RNA/DNA ratio significantly higher in juvenile with PHY + INS than those with PTE and OTE alone (P < 0.05). The combination of PTE + PHY could improve the growth and survival of scallop juvenile. Our results suggested that PTE could partially replace live algae in bivalve laval rearing.
Scallop juvenile;Patinopecten yessoensis;Growth;Survival rate;Biochemical composition;
 Cited by
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