PHENOTYPIC AND GENOTYPIC PERFORMANCES OF BLACK TIGER SHRIMP, Penaeus monodon HAVING FAST GROWTH TRAITS
Abstract: Shrimp breeding
research focusing on fast growth traits is important to develop better
phenotypic and genotypic characters of shrimp spawners. The aim of this
research was to evaluate shrimp breeding technology to produce fry having fast
growth traits. Selection was initiated from the breeding of wild shrimp
spawners (F-0) based on full sib mating, probiotics, biosecurity, and viral
diseases diagnosis. Viral disease diagnoses were performed using 7 viruses
(TSV, WSSV, IHHNV, YHV, BP, MBV, and HPV) provided in the IQ-2000 kit. The
result showed that 11 families of the first generation (F-1) shrimp were
phenotypically varied (big, regular and small size). Number of fry from the
first generation resulted from phenotypic selection that have fast growth trait
ranged between 1.99% and 4.49% of the total fry population. Genotypic
performance of the shrimp broodstock (F-0) and the first generation (F-1)
showed different genetic variations. Heterozigosity values were 0.2872±0.0047
(female) and 0.5487±0.0103 (male) for shrimp broodstock (F-0), 0.704±0.0261 for
the first generation (F-1) having fast growth trait, and 0.6224±0.023 for F-1
having slow growth. Gene markers of fast growth trait were indicated by the
genes with molecular weights of 1,025; 1,280; and 1,325 basepairs and having
different DNA sequences compared to that of slow growth shrimp.
Keywords: breeding; fast
growth; phenotype; genotype; Penaeus monodon
Author: Haryanti, Ahmad
Muzaki, Ida Komang Wardana, Fachrudin, Sari Budi Moria Sembiring, I Gusti
Ngurah Permana
Journal Code: jpperikanangg090029
