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description Journal article public Jurnal Iktiologi Indonesia

Feed Conversion and Seed Survival of Nile Tilapia (Oreochromis. Niloticus Linnaeus, 1758) Feed by Recombinant Growth Hormone Through Immersion and Feed

Nurul Azzahra Lukman, Andi Aliah Hidayani, Asmi Citra Malina, Alimuddin Alimuddin, Muhammad Fuadi
Published 28 Февраль 2022

Abstract

Tilapia (Oreochromis niloticus) is one of the freshwater fish that is of great interest to the public, because its protein content is quite high, namely 55.58%. One of the problems in tilapia cultivation is that the need for feed is very high, where only 25% of the feed given is converted as a result of production and the rest is wasted as waste. This greatly affects the costs in the cultivation business. One alternative to overcome this problem is the use of Recombinant Growth Hormone (rGH). This study aimed to evaluate the effect of rGH administration on feed conversion ratio and survival of Tilapia (O. niloticus) given rGH through a combination method of submersion and feed rGH (oral boosting). The test animals used tilapia seeds with a size of 2-3 cm with 40 days of maintenance. A plastic jar with a volume of 10 L filled with 8 L of water and stocking density of 40 tilapia seeds. Test animals were given feed commercial made feed at a dose of 5% of body weight. This study used a completely randomized design (RAL) consisting of 4 treatments with 3 replications each, namely A (control), B (submersio), C (feed rGH oral boosting), and D (submersio+feed rGH oral boosting). The results showed that the effect of rGH administration gave the best results in treatment D, submersion+ feed rGH (oral boosting), the ratio feed conversion (FCR) was (0.77 ± 0.02) and survival rate was 92.50%. Provision of rGH through the combination method of submersion + feed rGH (oral boosting) can increase the efficiency of good utilization and high survival.

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