Impact of Aeration on the Growth Performance of Silver Barb, Puntius gonionotus, during Fingerling Rearing


Corresponding author.


Impact of aeration on growth of silver barb, Puntius gonionotus during fingerling rearing was studied through a 100-d rearing experiment conducted in 18 concrete tanks of 50 m2 (10 × 5 × 1.2 m) size. Fry (0.74 ± 0.27 g, 35 ± 6 mm) were stocked in the experimental tanks at three stocking densities (25, 50, and 75 fry/m2) and were evaluated with and without provision of 6 h (2400–0600 h) of night time aeration. Aeration resulted in higher pH and dissolved oxygen regime and increased fingerling length and weight. The results suggest a rearing density of 75/m2 to be ideal for rearing fry to fingerling of this species when aeration is provided, whereas, under non-aerated condition, rearing the fry to fingerling stage at 50/m2 was found advantageous over those at 25 and 75/m2.