National Academy of Agricultural Sciences (NAAS)
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PRINT ISSN : 2319-7692
Online ISSN : 2319-7706 Issues : 12 per year Publisher : Excellent Publishers Email : editorijcmas@gmail.com / submit@ijcmas.com Editor-in-chief: Dr.M.Prakash Index Copernicus ICV 2018: 95.39 NAAS RATING 2020: 5.38 |
Chanos chanos, commonly known as Milkfish is one of the most preferred and cultured brackish water finfish species across Southeast Asia. The major source of seed input is smaller fry collected from wild are sold off in minimum prize whereas fingerling size which can be attained in 1-2 month nursery rearing fetches a better prize. Experiments were conducted to find the growth and survivability of wild caught milk fish fry (5-6cm with 0.9 to 1g size), in clear water and biofloc base indoor culture (1 tonne tank) as well as traditional pond condition (0.02 ha) till the fingerling size (7-8cm with 4-5 g size). In biofloc based system the preferred size was attained after 30 days with 80% of survival whereas it took around 45 days in the clear water culture system and the survival was 52%. Simultaneously in traditional earthen pond the fingerlings were obtained in 30days duration with 56% survivability. The operational cost of the indoor biofloc and clear water system is projected for 0.1 ha area and the economic viability are compared with traditional pond culture for same area. Highest net income (deducting the cost of production from total profit) of Rs. 4,86,015/- was obtained from biofloc based system followed by traditional pond culture (3,32,420/-) with the lowest in the clear water system of Rs. 2,81,123/-. The study shows that the biofloc based nursery rearing of milkfish is economically viable and more profitable to the Clearwater culture system and can be practiced instead of traditional pond culture.
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