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Replacement of squid and krill meal by snail meal ( Buccinum striatissimum ) in practical diets for juvenile of kuruma shrimp ( Marsupenaeus japonicus )
Author(s) -
Moss Amina S,
Koshio Shunsuke,
Ishikawa Manabu,
Yokoyama Saichiro,
Nhu Truong H,
Dawood Mahmoud A O,
Wang Weilong
Publication year - 2018
Publication title -
aquaculture research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.646
H-Index - 89
eISSN - 1365-2109
pISSN - 1355-557X
DOI - 10.1111/are.13772
Subject(s) - biology , shrimp , snail , meal , krill , juvenile , zoology , fish meal , fishery , squid , weight gain , antarctic krill , food science , ecology , endocrinology , body weight , fish <actinopterygii>
A 60‐day feeding trial was conducted to investigate the effects of substituting squid and krill meal with marine snails ( Buccinum striatissimum ) into the diets of juvenile kuruma shrimps ( Marsupenaeus japonicus ). Five experimental diets were formulated to contain varying levels of snail meal at 0%, 25%, 50%, 75% and 100% (D1, D2, D3, D4 and D5, respectively) and fed to juvenile kuruma shrimps (initial mean weight 0.27 ± 0.02 g). The results showed that weight gain, feed intake and specific growth rate were improved significantly in D4 and D5 groups when compared with D1 group ( p < 0.05). Significant differences were not detected in survival rate among all shrimps fed diets containing several levels of snail meal ( p > 0.05). Crude protein content of shrimps fed the control diet was significantly lower than other treatments ( p < 0.05). Lipid content in shrimps fed 50% snail meal were significantly higher than the control while cholesterol content in shrimps fed 100% snail meal were significantly decreased and polyunsaturated fatty acid contents were significantly increased in shrimps fed 75%–100% snail meal ( p < 0.05). These results suggest that supplementing snail meal for complete replacement of squid and krill meal can be done to improve juvenile kuruma shrimps’ growth and reducing their cholesterol levels.