The purpose of these observations was to identify the stages of the embryoÂ development of ikan palmas (Polypterus senegalus senegalus) and determine theÂ length of duration of each stage. Broodstocks were cultured in aquaria 6 cm x 72 cm x 50 cmÂ in size. The broodstock were stocked at ratio of 1:1 and fed ad libitum with earthworm,Â small feed fish (ting sea fish) and golden snail. The Palmas broodstocks here naturallyÂ spawned in artificial nests made of split plastic raffia in resembling the aquatic plantÂ found in the natural habitat of ikan palmas. After 21 days of culture period, theÂ broodstock began to lay eggs in gradually for 20 days. The average diameter of theÂ eggs was 25 Î¼m. The embryo developed in 24 hours after fertilization and hatchedÂ out three days after the embryo had developed.
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