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Effects of dietary calcium and phosphorus supplementation on the growth performance of juvenile spotted babylon Babylonia areolata culture in a recirculating culture system
Chaitanawisuti, N.; Sungsirin, T.; Piyatiratitivorakul, S. (2010). Effects of dietary calcium and phosphorus supplementation on the growth performance of juvenile spotted babylon Babylonia areolata culture in a recirculating culture system. Aquacult. Int. 18(3): 303-313. http://dx.doi.org/10.1007/s10499-009-9244-8
In: Aquaculture International. Springer: London. ISSN 0967-6120; e-ISSN 1573-143X, more
Peer reviewed article  

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Keywords
    Aquaculture systems > Recirculating systems
    Chemical elements > Metals > Alkaline earth metals > Calcium
    Chemical elements > Nonmetals > Phosphorus
    Cultures > Shellfish culture > Mollusc culture
    Population functions > Growth
    Babylonia areolata (Link, 1807) [WoRMS]
    Marine/Coastal
Author keywords
    Babylonia areolata; Calcium; Phosphorus; Recirculating culture system;Growth

Authors  Top 
  • Chaitanawisuti, N.
  • Sungsirin, T.
  • Piyatiratitivorakul, S.

Abstract
    A feeding experiment was conducted to determine the effects of dietary calcium and phosphorus, and the interaction between calcium and phosphorus, on the growth of juvenile spotted babylon, Babylonia areolata, cultured in a recirculating culture system. Nine isonitrogenous experimental diets supplemented with three levels of calcium (1, 4, and 7%) for each of three levels of phosphorus (1, 3, and 5%) were prepared using fish meal, squid meal, and shrimp meal as the main protein sources. Juveniles with an initial average body weight of 0.59 ± 0.09 g were fed to satiation once daily with one of the nine diets for 180 days. Absolute and specific growth rates were calculated for both shell length and whole wet body weight. Results showed that dietary calcium and phosphorus supplementation significantly affected the growth of juvenile spotted babylon (P < 0.05), but not survival and feed-conversion ratio. The specific growth rate in shell length (SGRL) ranged from 0.32 to 0.39% day−1. No significant difference among phosphorus levels and no significant interaction between calcium and phosphorus in SGRL of the spotted babylon (> 0.05) was found, but significant differences were observed among calcium levels, irrespective of phosphorus levels (< 0.05). For 1 and 7% supplemental calcium, the spotted babylon had significantly higher SGRL than those fed diets supplemented with 4% calcium. However, the specific growth rate in body weight (SGRW) ranged from 0.91 to 1.19% day−1 with no significant difference among calcium and phosphorus levels and no significant interaction between calcium and phosphorus (> 0.05). Survival and feed-conversion ratio were not significantly affected by dietary calcium and phosphorus levels with ranges from 91.00 to 95.00% and 2.43 to 2.76, respectively. At the end of the experiment, shell abnormality of B. areolata was found for all feeding trials.

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