Effects of Photoperiods on the Growth Performance of Juvenile<i> Trichogaster lalius</i> (Hamilton, 1822)
2017
Awasthi, Madhu | Gupta, Pragya | Bano, Farah | Serajuddin, Mohammad
Juvenile of Trichogaster lalius was reared under three photoperiod conditions (0L:24D, 12L:12D, 16L:08D) for 60 days to examine the growth performance under laboratory conditions. The maximum growth was observed in the juvenile of T. lalius exposed to 16:00 hrs. light. The mean body weight of different groups of juvenile fish exposed to different light conditions were significantly different (p<0.05) from each other which was observed from 20<sup>th</sup>day of the experiment. The absolute, specific, and relative growth rates were found to be maximum in the group exposed to 16:00 hrs. light duration. The present study indicated that 16:00 hrs. light duration was considered to be better for the growth of juvenile of T. lalius under controlled condition.
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