물렁가시붉은새우(Pandalopsis japonica) 부화유생 사육을 위한 영양강화 알테미아, 바지락살 및 배합사료의 공급 효과
Effects of Three Diets on the Larval Growth of Pandalid Shrimp Pandalopsis japonica
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초록
Larvae of pandalid shrimp Pandalopsis japonica are benthic, and may prefer bottom to planktonic food items. Threediets, enriched Artemia meta-nauplii (AR), clam meat (CM), and crumbled shrimp (CD), were evaluated as food forearly larvae in terms of biometric growth R:D ratios. Larvae fed AR and CM had significantly greater total lengthand dry weight than did larvae fed CD (P<0.05). Survival was significantly greater in larvae fed CM than in thosefed AR and CD (P<0.05). R:D ratios were also significantly higher in larvae fed AR and CM than in those fed CD(P<0.05). Planktonic Artemia meta-nauplii containing high levels of fatty acids and amino acids were not suitable foreither normal somatic growth or survival at early benthic larval stages. Furthermore, it is necessary to determine theoptimal feeding duration to increase digestibility of AD. Thus, we propose that clam meat is the best diet for pandalidshrimp larvae.
Abstract
Larvae of pandalid shrimp Pandalopsis japonica are benthic, and may prefer bottom to planktonic food items. Threediets, enriched Artemia meta-nauplii (AR), clam meat (CM), and crumbled shrimp (CD), were evaluated as food forearly larvae in terms of biometric growth R:D ratios. Larvae fed AR and CM had significantly greater total lengthand dry weight than did larvae fed CD (P<0.05). Survival was significantly greater in larvae fed CM than in thosefed AR and CD (P<0.05). R:D ratios were also significantly higher in larvae fed AR and CM than in those fed CD(P<0.05). Planktonic Artemia meta-nauplii containing high levels of fatty acids and amino acids were not suitable foreither normal somatic growth or survival at early benthic larval stages. Furthermore, it is necessary to determine theoptimal feeding duration to increase digestibility of AD. Thus, we propose that clam meat is the best diet for pandalidshrimp larvae.
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