Produksi Ikan Nila (Oreochromis niloticus) Strain Politeknik Negeri Lampung (PoliNILA) dengan Metode Selective Cross Breeding

Abstract

Tilapia cultivation in Lampung Province still faces many challenges, including the limited availability of tilapia seeds.
This is due to the low availability of tilapia broodstock with superior specifications. This poses a challenge for the Lampung State
Polytechnic to produce new strains of tilapia broodstock with distinctive advantages, thereby boosting seed production and
consumption of tilapia in Lampung Province. One effort that can be made to create new strains of superior tilapia is by using
selective cross-breeding between two superior tilapia species, namely the Srikandi tilapia and the Larasati tilapia. Both types of
tilapia have their own unique superior characteristics, so it is hoped that this will be able to create new strains of tilapia that
combine the advantages of both. The two superior Nile tilapia broodstock will be cross-bred with the composition in Treatment A,
namely male Nile tilapia broodstock Srikandi with female Nile tilapia broodstock Larasati and Treatment B, namely female Nile
tilapia broodstock Srikandi with male Nile tilapia broodstock Larasati with each treatment having two replications. This research
will be conducted for 90 days of maintenance which includes the process of adaptation of broodstock to the environment, the
spawning process and the process of maintaining larvae and seeds. The parameters tested include the number of eggs produced
(fecundity), egg hatching rate, survival rate of larvae and fish seeds (survival rate), daily growth rate of fish seeds (specific
growth rate) and the feed conversion ratio in fish seeds (food conversion ratio).