Replacement of rotifer with Artemianauplii in clownfish larvae rearing (Amphiprion percula Lacepede, 1802)
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Abstract
This study was conducted to minimize the period of using rotifer in rearing percula clownfish larvae from newly hatched to 30 days. Artemia nauplii was used to replace rotifer when the larvae reached 5, 7, 9, 11 and 13 days after hatching (DAH). The results showed that larvae fed with Artemia nauplii starting from 7 DAH achieved the highest specific growth rate in standard length (4,02%/day). The later the starting point of weaning was, the lower the larval specific growth rate was. The lowest specific growth rate was at 13 DAH (3.21%/day;P < 0.05). However, there were no significant differences in the specific growth rate among the weaning times at 5, 9 and 11 DAH (P > 0.05). Similarly, the starting points of weaning times had no significant effects on larval survival rate, ranging from 39,6 - 48,2% (P > 0.05). The results of this study helped reduce the period of using rotifer in rearing the clownfish larvae which contributes to the improvement of larval performance in artificialre production of this species.
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