Abstract:
This study examines the effects of exogenous melatonin, zinc amino acid (ZnAA), and combined melatonin and ZnAA treatment to the first sexual maturity stage in female and male broodstock of the Walking catfish, Clarias macrocephalus. The exogenous melatonin was able to accelerate the first puberty stage of C. macrocephalus by enhancing the broodstock maturation and reproductive performance especially on fecundity, larval survival rate, sperm motility and lowered the sperm abnormality.