Thangapalam Jawahar Abraham¹ , Farhana Hoque¹ , Anish Das² , Talagunda Srinivasan Nagesh²

1 Department of Aquatic Animal Health, Faculty of Fishery Sciences, West Bengal University of Animal and Fishery Sciences, Kolkata--700094, West Bengal, India
2 Department of Fisheries Resource Management, Faculty of Fishery Sciences, West Bengal University of Animal and Fishery Sciences, Kolkata--700094, West Bengal, India
Author    Correspondence author
International Journal of Aquaculture, 2017, Vol. 7, No. 10   doi: 10.5376/ija.2017.07.0010
Received: 26 Jun., 2017    Accepted: 17 Jul., 2017    Published: 27 Jul., 2017

This is an open access article published under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abraham T.J., Hoque F., Das A., and Nagesh T.S., 2017, Effect of culture conditions on the levels of serum insulin-like growth factor-1 in Indian major carps, International Journal of Aquaculture, 7(10): 71-78 (doi: 10.5376/ija.2017.07.0010)

The insulin-like growth factor-1 (IGF-1) plays an important role in the regulation of development and growth of fish. Aquaculture researchers consider it as a potential growth rate indicator. Reports on the IGF-1 of carps are limited. This study was undertaken to determine the serum IGF-1 levels of Indian major carps (IMCs) cultured in the normal pond, sewage-fed pond and captive conditions. Labeo rohita of the normal pond recorded the highest serum IGF-1 level (2.10±0.14 ng/ml), followed by Catla catla (1.99±0.17 ng/ml) and Cirrhinus mrigala (1.82±0.12 ng/ml). Captive held C. catla recorded the highest serum IGF-1 (2.10±0.19 ng/ml) compared to L. rohita (2.04±0.08 ng/ml) and C. mrigala (1.90±0.09 ng/ml). In the sewage-fed pond, C. catla, L. rohita and C. mrigala recorded the serum IGF-1 levels of 2.38±0.36 ng/ml, 2.06 ±0.03 ng/ml and 1.07±0.06 ng/ml, respectively. Significant differences existed among the serum IGF-1 levels of C. mrigala reared in the normal and sewage-fed pond as well as the captive and sewage-fed pond (P < 0.05). It appears from the results that C. catla and L. rohita are the ideal cultivable species under the sewage-fed aquaculture. The serum IGF-1 level may be an effective indicator of the differences in growth of carps.

Serum IGF-1; Catla catla; Labeo rohita; Cirrhinus mrigala; Sewage-fed pond