The Effect of Recombinant Growth Hormone Administration on Bonylip Barb (Osteochilus vittatus) Fry at Diferent Stocking Densities.

  • Carman O
  • Maharani A
  • Alimuddin
  • et al.
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Abstract

Ikan nilem (Osteochilus vittatus) memiliki nilai ekonomi yang tinggi, namun laju pertumbuhannya relatif lambat. Salah satu solusi potensial untuk mempercepat masa budidayanya adalah dengan penggunaan hormon pertumbuhan rekombinan (rGH). Penelitian ini bertujuan untuk mengevaluasi pengaruh pemberian rGH dari Epinephelus lanceolatus (rElGH) secara oral terhadap laju pertumbuhan benih ikan nilem pada kepadatan tebar yang berbeda. Rancangan acak lengkap dengan tiga ulangan digunakan dalam penelitian ini. Benih ikan dengan panjang 4,43±0,03 cm dan berat 0,96±0,03 g dipelihara dalam akuarium berukuran 100 × 50 × 50 cm dengan ketinggian air 20 cm selama 30 hari. Ikan diberi pakan komersial yang mengandung 31–33% protein, dengan pakan yang mengandung rElGH diberikan hingga kenyang dua kali sehari (pukul 08.00 dan 16.00) selama tujuh hari pertama, kemudian dilanjutkan dengan pakan biasa tanpa rElGH. Kinerja produksi terbaik diperoleh pada perlakuan R30 (30 ekor per 100 L dengan rElGH) dengan pertumbuhan bobot mutlak (PBM) 3,4 g, tingkat kelangsungan hidup (TKH) 98,89% dan laju pertumbuhan spesifik (LPS) sebesar 4,8% hari-1 sehingga pertumbuhan ikan nilem yang diberi hormon rEIGH lebih cepat.The nilem fish (Osteochilus vittatus) has high economic value, but its growth rate is relatively slow. One potential solution to accelerate its cultivation period is the use of recombinant growth hormone (rGH). This study aimed to evaluate the effect of oral administration of rGH derived from Epinephelus lanceolatus (rElGH) on the growth rate of nilem fish juveniles at different stocking densities. A completely randomized design with three replications was used in this study. Juvenile fish with an average length of 4.43±0.03 cm and weight of 0.96±0.03 g were reared in aquaria measuring 100 × 50 × 50 cm with a water height of 20 cm for 30 days. The fish were fed commercial feed containing 31–33% protein, with rElGH-supplemented feed given to satiation twice daily (at 08:00 and 16:00) during the first seven days, followed by regular feed without rElGH. The best production performance was obtained in the R30 treatment group (30 fish per 100 L with rElGH), with an absolute weight gain (AWG) of 3.4 g, a survival rate of 98.89%, and a specific growth rate (SGR) of 4.8% per day, indicating that nilem fish given rElGH grew faster.

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APA

Carman, O., Maharani, A., Alimuddin, & Rahmi, K. A. (2025). The Effect of Recombinant Growth Hormone Administration on Bonylip Barb (Osteochilus vittatus) Fry at Diferent Stocking Densities. Indonesian Journal of Aquaculture Medium, 5(2), 17–29. https://doi.org/10.29303/mediaakuakultur.v5i2.7339

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