Jelawat fish reproduction

Jelawat fish reproduction. Jelawat fish begin spawning at the beginning of the rainy season, which is in October-November. During the rainy season, jelawat able to spawn spawning 2-3 times. When rain and rain water flooded the surrounding area, jelawat began to spawning. The fish are mature gonads migratory into estuaries and perform spawning morning accompanied rintikan rainwater. Jelawat egg is floating. The fertilized eggs were then taken to the water flow downstream and hatch during the trip. Children jelawat measuring 2 cm -3 will arise to the surface of the water and swim in droves along the banks of the river, upstream against the current. While children jelawat size 4- 5 cm glad to be in places that are protected from sunlight that water is rather calm. Jelawat can spawning naturally in ponds, but only spawn at the start of the rainy season. Jelawat fish do not spawn outside the rainy season. To overcome that is then applied to the artificial spawning techniques (induced breeding) by way hipofisasi (use of the pituitary gland) and some sort of synthetic hormone ovaprim. Jelawat has successfully dihipofisasi in early 1978 by LPPD Bogor. 2004 BBI Pavilion, West Kalimantan, has succeeded in producing seeds in bulk jelawat. While BBAT Jambi successful breeding of mass jelawat since 2006.
Source: M. Ghufran H. Kordi k. The consumption of fish farming Freshwater, 2013

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