Increasing The Reproductive Performance Of Milkfish Mature (Chanos Chanos) Through Spirulina Flour Enrichment Feed Lisa Ruliaty*, A. Nur, I.R. Amalia, A.L Nurhayati
Main Centre for Brackishwater Aquaculture, Jepara- Central Java, Indonesia
Abstract
Enrichment of milkfish broodstock feed with spirulina flour has been carried out at BBPBAP Jepara in 2020. The purpose of this test is to improve the reproductive performance of milkfish. Feed pellets for 10 kg milkfish are enriched with a mixture of 10 duck eggs, 100 ml of honey, 6 g of vitamin C, 3 g of vitamin E and Spirulina flour at a dose of 0.6 g/kg and 1.8 g/kg, in a blender until they become emulsion The enrichment material is applied by spraying onto the surface of the pellet evenly and then air-dried. Feeding is done as much as 2-3% / day. The results of the enrichment test on feeding enriched with spirulina flour to milkfish broodstock obtained the following results: (a) The number of eggs increased from 6.9 million eggs to 20 million eggs- (b) The frequency of laying eggs from 10 times/month to 18 times/month- (c) The rate of fertilization from 48.5% to 70.4%- (d) Hatching rate from 66.2% to 79.2%- (e) Increasing the dose of 0.6 g/kg and 1.8 g/kg did not give different result.
