Shrimp breeding research focusing on fast growth traits is important to developÂ better phenotypic and genotypic characters of shrimp spawners. The aim of thisÂ research was to evaluate shrimp breeding technology to produce fry having fastÂ growth traits. Selection was initiated from the breeding of wild shrimp spawners (F-0)Â based on full sib mating, probiotics, biosecurity, and viral diseases diagnosis. ViralÂ disease diagnoses were performed using 7 viruses (TSV, WSSV, IHHNV, YHV, BP, MBV,Â and HPV) provided in the IQ-2000 kit. The result showed that 11 families of the firstÂ generation (F-1) shrimp were phenotypically varied (big, regular and small size). NumberÂ of fry from the first generation resulted from phenotypic selection that have fastÂ growth trait ranged between 1.99% and 4.49% of the total fry population. GenotypicÂ performance of the shrimp broodstock (F-0) and the first generation (F-1) showedÂ different genetic variations. Heterozigosity values were 0.2872Â±0.0047 (female) andÂ 0.5487Â±0.0103 (male) for shrimp broodstock (F-0), 0.704Â±0.0261 for the first generationÂ (F-1) having fast growth trait, and 0.6224Â±0.023 for F-1 having slow growth. GeneÂ markers of fast growth trait were indicated by the genes with molecular weights ofÂ 1,025; 1,280; and 1,325 basepairs and having different DNA sequences compared toÂ that of slow growth shrimp.
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