Abstract
Silver rasbora (Rasbora argyrotaenia) is a fish that high economic price, a relatively short maintenance period, and cultivation can be in a narrow area. The purpose of this research was to know the effect and optimum dosage of S. platensis supplementation in diet to sperm performance of silver rasbora. This study was conducted in February until March 2019 at Wet Laboratory and Instrument Laboratory Universitas Airlangga, Banyuwangi Campus, Indonesia. A total 24 male of silver rasbora with initial weight of 3.96 ± 0.41 g and length of 7.58 ± 0.41 cm was randomly distributed in 4 tanks (6 fish per tank) according to 4 different treatment doses of S. platensis in the diet namely 0% (P0), 1% (P1), 2% (P2), and 3% (P3). The parameters were observed in this study are milt volume, sperm concentration, sperm motility, and sperm viability. Supplementation of S. platensis in diet was increased sperm performance of silver rasbora and the optimum dosage is 3% with the amount of milt volume, sperm motility, sperm concentration, sperm viability are 9.11 ± 0.95 μL/gr body weight, 76.07 ± 0.97 %, 82.70 ± 0.79 ×104 cell/μL, and 73.90 ± 1.8 %.
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