Analysis on the Survival Rate and Growth of Larasati Tilapia (Oreochromis Niloticus) F5 Seed in Saline Media

Abstract

The aim of this research was to observe the impact of different saline media towards the survival rate and growth of red tilapia, variety Larasati Tilapia (O. niloticus) F5 seed cultured in saline media. This research was carried out on March -August 2012 at Satker PBIAT (Centre of Fresh Water Fish Hatchery Working Unit), Janti -Klaten, Central Java Province. Sample used were F5 red Larasati Tilapia seed from selective breeding with approximate length of 3-5 cm. A completely randomized design method was used with 5 treatments and 3 replications. Different saline media for the treatments were A (0‰); B (15‰), C (20‰), D (25‰) and E (30‰). The seeds were cultivated in a plastic container with water capacity of 20 liter and density of 20 fish per container. Result showed that in water media with salinity up to 15‰ the survival rate is equal to salinity of 0‰ at amount of 81.67±2,89%. Increase in salinity of the media result in the decrease of the survival rate where at the saline media of 30‰ the survival rate drops until 71.67±2,89%. Similarly, growth in weight and length. F5 red Larasati tilapia reared in saline media up to 30‰ are still experiencing good growth both in weight and length, but slowed. The best growth was obtained in 15‰ saline medium with gaining in weight and length for 1.40±0.01 grams and 1.89±0.02 cm, respectively

Analysis of high protein feed on the maintenance of tilapia (Oreochromis niloticus) broodstock in brackishwater culture

“…The percentage of the specific growth rate of tilapia broodstock was 0.0102%/day. This value was lower when compared to the results of [25] study which obtained an optimal relative weight growth of 0.05%. Calculations were obtained from the formula Zenneveld et al, [26]; Loekman et al, [27]; Oktaviani et al, [28].…”

PERBAIKAN PERTUMBUHAN DAN TOLERANSI SALINITAS IKAN NILA SRIKANDI (Oreochromis aureus x O. niloticus) MELALUI HIBRIDISASI DAN BACK-CROSS DENGAN O. aureus F-1 DI KARAMBA JARING APUNG LAUT

“…Rerata sintasan pada semua populasi uji di bawah 80% atau lebih rendah dari sintasan ikan nila pada pembesaran di air tawar. Hal ini sesuai dengan Basuki & Rejeki (2015), yang menyatakan bahwa peningkatan salinitas media berpengaruh pada tingginya kematian dan penurunan sintasan ikan nila. Sintasan pada pembesaran di air tawar pada populasi campuran dan monoseks berkisar 90% (Chakraborty, 2010), 93,3%-96,7% (Abdel-Tawwab, 2003, dan 84%-96% pada pemeliharaan dengan hapa (Guner et al, 2005), diiringi sekresi NaCl oleh insang dan berbagai bentuk ion garam oleh ginjal.…”

Role of Natural Food in Enhancing the Productivity of Saline Nile Tilapia in the Mangrove Ecosystem of Segara Anakan Lagoon, Brackish Water Culture

“…Saline Nile Tilapia (Soedibya, 2013;Ekasari et al, 2015;Kusuma et al, 2019) is a tropical fish in shallow waters that thrives in an aquatic ecosystem with varying salinities (Basuki and Rejeki, 2015;Kusuma et al, 2019;Prabu et al, 2019), hence, they can adapt and live in brackish water with a salinity of about 25 o /oo (Ninh et al, 2014). Furthermore, these species are classified as omnivorous fish because they consume a broad spectrum of feed including phytoplankton, periphyton, aquatic plants, small invertebrates, benthic fauna, detritus, and bacteria associated with detritus (Mendoza and Henkel, 2017;Neal et al, 2018;Takenaka et al, 2018;Teoh et al, 2018;Setyawati et al, 2019;Rahman et al, 2021).…”