The Application of Erythromycin, Elbayou, and Rica-1 Probiotic in the Rearing of Scylla paramamosain Mud Crab Larvae Development into the Crablet Stage

• Gunarto Gunarto ^[1] ; Bunga Rante Tampangalo ^[1] ; Muliani Muliani ^[1]
  1. [1] Laboratory of Biotechnology and Seed Production of Research Institute for Brackishwater Aquaculture and Fisheries Extension Maros
• Localización: Thalassas: An international journal of marine sciences, ISSN 0212-5919, Vol. 37, Nº. 2, 2021, págs. 465-475
• Idioma: inglés
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• Resumen

  • Antibiotics, chemicals, and probiotics are often used in aquaculture activities to successfully culture species. The purpose of this study was to compare the effectiveness of the application of erythromycin, elbayou, and Rica-1 probiotic in the rearing of S. paramamosain mud crab larvae development to the crablet stage. The newly hatched healthy larvae zoea-1 were cultured in nine fiber tanks with a volume of 200 L each at the density of 80 ind. L−1. The three treatments tested consisted of A) Erythromycin; B) Elbayou; and C) Rica-1 probiotic with a dose of 15 mg L−1 each. Each treatment with three replications. Several parameters were monitored including the larvae density, larvae stage development, and water quality parameters such as ammonia, nitrite, total organic matter (TOM), Vibrio sp, and total bacteria population. At the Day of Rearing (DOR)-15, the larvae developed into zoea-5 with a density of 15.3 ± 2.1 ind. L−1 (A); 16.3 ± 2.5 ind. L−1 (B), and 7.3 ± 1.5 ind. L−1 (C). At DOR-19, some larvae zoea-5 successfully metamorphosed into the megalopa stages. The crablet-D15 production in erythromycin treatment was 141.2 ± 34.1 ind. tank−1, significantly different (P < 0.05) from the Elbayou treatment production of 70.0 ± 3.74 ind. tank−1. However, there was no significant crablet production from the RICA-1 probiotic treatment due to megalopa's death as a consequence of Vibrio harveyi infection. As a result, the erythromycin application of 15 mg L−1 was the most effective for increasing crablet production in rearing mud crab larvae.