Pertumbuhan, konversi dan retensi pakan, dan proksimat tubuh benih ikan sidat yang diberi hormon pertumbuhan rekombinan ikan kerapu kertang melalui perendaman Growth, feed conversion and retention, and proximate of eel juvenile treated by immersion of recombinant giant grouper growth hormone

摘要: This study was aimed to determine the immersion dose of recombinant giant grouper growth hormone (rElGH) increase eel juvenile (glass eel). After shock salinity treatment (NaCl 3% for 2 min), glass were immersed in water containing 0.9% NaCl, 0.01% bovine serum albumin, and different rElGH (0, 0.12, 1.2, 12 120 mg/L). Glass fed on blood worm first month, commercial diet second month rearing. Fish rearing performed 60 L aquarium at density 150 fish per aquarium. The results showed that higher body weight obtained mg/L, by increment about 37.4% compared control. mg/L also increased specific rate 29.3% (p<0.05) Furthermore, treatment, feed conversion ratio decreased 33.7% 25.6% control, respectively. Protein (7.15±0.08%) lipid (9.95±0.10%) retentions rElGH-treated than those control (protein 6.17±0.07%; 5.73±0.06%). Lower protein content (12.73%), while (8.35%) crude carbohydrate (3.22%) found (13.24%, 5.90%, 1.76%, respectively). Thus, general, could generate high performances juvenile, application can be useful aquaculture production.