OPEN ACCESS PEER-REVIEWED | RESEARCH ARTICLE

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Yohanna R. Widyastuti
Jojo Subagja
Rudhy Gustiano

Abstract

Selection program is one alternative to control and improve growth performance. It is well known that decreasing growth rate has a correlation to the early maturation of the brood stocks. Objective of the present study was to elaborate the information of bioreproduction parameters of selected tilapia brood stocks coming from selective breeding on the growth improvement. Three groups of brood stock were used in this study defining as the first generation of selected brood stock (01) and the second generation (02) and farmer’s tilapia (M). Each group of brood stock has 5 pair brood stocks as replications. Hormone injection was given for artificial spawning. Eggs were then incubated in the jars equipped with recirculation system. Larvae were transferred to aquaria for growth observation. Results showed that artificial spawning could be done on tilapia using hCG injection as priming prior to ovaprim. Although there were no significantly different (P > 0.05) in egg diameters, the eggs of selected brood stock were still slightly bigger than non selected brood stock. Larvae of the second generation of selected brood stock has better growth rate than the first generation and non-selected one.

Keywords:
bioreproduction, Oreochromis, selection, breeding.

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References

Bolivar, R.B., AJE.Eknath, H.L.Bolivar and T.A. Abella. 1993. Growth and reproduction of individually tagged Nile tilapia (Oreochromis niloticus) of different strains. Aquaculture 111:159-169.

Bromage, N.R & R.J Robert. 1995. Nile tilapia (Oreochromis niloticus). In Bromage, N.R. and R.J. Robert (Eds.). Broods lock management and egg and larval quality, Blackwell Science Ltd., USA. P: 277-320.

Horstgen-Schwark, G and H.J Langholz, 1998. Prospects of selecting for late maturaty in tilapia (Oreochromis niloticus) III: A selection experiment under laboratory conditions. Aquaculture 167: 123 -133.

Rana, K.J. 1986. An evaluation of two types of containers for the artificial incubation of Oreochromis eggs. Aquaculture & Fisheries Management, 17:139- 145.

Uraiwan, S, 1988. Direct and indirect responses to selection" for age at first maturation of Oreochromis niloticus. In RSV Pullin, et a/. (Editors.). The second international symposium on tilapia in aquaculture p: 295 - 300.

Gustiano, R dan O.Z. Ariftn. 2007. Respon dan heretabilitas seleksi famili pada ikan nila generasi ketiga (G3) (dalam proses publikasi).