| dc.description.abstract | High quality of shrimp larvae produced by using a good broodstock. Increase production high quality of white shrimp (Litopenaeus vannamei) broodstock can be done with the addition of vitamin E or astaxanthin. A dose used was 350 ppm vitamin E, 500 ppm astaxanthin, combination of 350 ppm vitamin E and 500 ppm astaxanthin, combination of 175 ppm vitamin E and 250 ppm astaxanthin. The purpose of this research was to evaluate the effect of astaxanthin and vitamin E supplementation with different dose in the feed on gonad maturity of white shrimp broodstock. Feeding of vitamin E and astaxanthin was performed in three times, at 06.00, 12.00 and 20.00 by as much as 2% of the shrimp weight. The results showed that dose was used combination of 175 ppm vitamin E and 250 ppm astaxanthin giving highest relative survival (100.00±0.00%), growth rate of broodstock shrimp (1.07±0.26%/day), the fastest maturity of first gonads level achieved 14 days (19.45 ±4.81%), maturity of fourth gonads level achieved 41 days, levels of spawning (33.33±8.33%), fecundity (87000±2000 eggs) and hatching rate (49±1.53%). | en |
