The Effect of Live Food on Larvalof Malabar Grouper (Epinephelus malabaricus) in Early-Stage Age

Received: 06-03-2020

Accepted: 13-04-2020

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Issue: Vol. 18 No. 3 (2020)

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CHĂN NUÔI – THÚ Y – THỦY SẢN

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Son, H., Hai, P., & Van, K. (2024). The Effect of Live Food on Larvalof Malabar Grouper (Epinephelus malabaricus) in Early-Stage Age. Vietnam Journal of Agricultural Sciences, 18(3), 212–220. http://testtapchi.vnua.edu.vn/index.php/vjasvn/article/view/652

The Effect of Live Food on Larvalof Malabar Grouper (Epinephelus malabaricus) in Early-Stage Age

Hoang Nhat Son (*) 1 , Pham Cong Hai 2 , Kim Van Van 3

  • 1 Viện Nghiên cứu nuôi trồng Thủy sản
  • 2 Trường Cao đẳng Công nghệ, Kinh tế và Thủy sản
  • 3 Khoa Thủy sản, Học viện Nông nghiệp Việt Nam

    • Keywords

    Live feed, rearing, larval, Malabar grouper

    Abstract


    This study aimed to determine the types and densities of live foods that affect the growth and survival of grouper larvae (Epinephelus malabaricus) from 0 to 12 days old. In the first experiment, the feeding regime consisted of four types of live feeds (three rotifer strains: Proales similis, Brachionus rotundiformis, Brachionus plicatilisand the trochophore of Pacific oyster) for larval nursing. The results showed that super small rotifers (Proales similis) (size 50-60µm) were most suitable for larval rearing of grouper to 12 days old. In experiment 2, the densities of rotifer (P. similis) at 10 individuals/ml and 15 individuals/ml were showed the best results in nursing of larval grouper, denoted as the survival rate of 12-day-old larvae was 8.3-11.7%; the population’s subdivision coefficients and the average length of grouper larvae were 4.4-8.8% and 601.8-603.6μm, respectively.

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