MAYA RESTANTI, - (2022) TEKNIK PEMBENIHAN IKAN NILEM (Osteochilus hasselti) DI BALAI BENIH IKAN (BBI) GENTENG, KABUPATEN BANYUWANGI, PROVINSI JAWA TIMUR. Other thesis, UNIVERSITAS AIRLANGGA.

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Abstract

Nilem fish (Osteochilus hasselti) is one of the freshwater commodities that is in great demand in the community as a consumption fish and as a therapeutic fish. The production of nilem fish (Osteochilus hasselti) from 2016 to 2018 has increased, from 6,654 tons in 2016 to 8,167.57 tons in 2018. The high demand for nilem fish production (Osteochilus hasselti) in the market must certainly be in line with the increase in the production of nilem fish (Osteochilus hasselti) seed in quality and quantity continuously. However, in the hatchery period the problems that are often encountered. The high mortality in hatching eggs so that it requires the farmer's understanding of the technique of hatchery of nilem fish (Osteochilus hasselti). The solution to these problems is in the form of the purpose of field work practice activities, namely knowing the technique of hatchery of nilem fish (Osteochilus hasselti), problems, and solutions in nilem hatchery activities of nilem fish (Osteochilus hasselti). Field Work Practice was held at the Fish Seed Center (BBI) Genteng, Banyuwangi Regency, East Java on July 11, 2022 – September 11, 2022. The method used is a descriptive method with data retrieval including primary data and secondary data. Data were taken by making observations, active participation, interviews and literature studies. The technique of hatchery of nilem fish (Osteochilus hasselti) at Fish Seed Center (BBI) Genteng includes the maintenance of mothers who are given feed in the form of using MS PREO 130-2 protein 31% pellets by ad satiation method. Selection of mature male broods of gonads aged 10-12 months and females aged 12-18 months, spawning is carried out using the injection of the hormone ovaprim with a ratio of male to female, which is 1: 1 consisting of 5 male broods and 5 female broods. The maintenance of larvae is given feed in the form of boiled chicken eggs and Tubifex sp worms by ad libitum method. The spawning results obtained from the calculation were fecundity of 17,952 eggs/head, FR 70%, HR 74%, and SR 69%. The water quality in the spawning pond, egg hatching ponds, and larval maintenance ponds the temperature is a temperature of 25°C – 32°C; pH 7.8-9.3 ; DO 7 mg/L - 9 mg/L ; ammonia 0 mg / L - 0.25 mg / L; nitrate 5 mg/L – 10 mg/L, and nitrites 0 mg/L.

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