International Journal of Aquaculture, 2017, Vol.7, No.10, 71-78
71
Research Article Open Access
Effect of Culture Conditions on the Levels of Serum Insulin-like Growth
Factor-1 in Indian Major Carps
Thangapalam Jawahar Abraham
1
,
Farhana Hoque
1
, Anish Das
2
, Talagunda Srinivasan Nagesh
2
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
Corresponding author Email
International Journal of Aquaculture, 2017, Vol. 7, No.10 doi
Received: 26 Jun., 2017
Accepted: 17 Jul., 2017
Published: 27 Jul., 2017
Copyright © 2017
Abraham et al., 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.
Preferred citation for this article
:
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
Abstract
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.
Keywords
Serum IGF-1;
Catla catla
;
Labeo rohita
;
Cirrhinus mrigala
; Sewage-fed pond
1 Introduction
Freshwater aquaculture in West Bengal, India depends mainly on Indian major carps (IMCs) that have proved
sustainable at different levels of production over the years. West Bengal is one of the leading producers of carps
and the largest producer of carp seeds in India (Anon, 2015). Fish growth rates vary with season, age and
nutritional status. A number of factors such as condition factor (Carlander, 1969), organosomatic indices (Goede
and Barton, 1990), superoxides (Sahoo et al., 2005), insulin-like growth factor (IGF)-1, and IGF binding proteins
(Picha et al., 2012) have been proposed to assess the growth potential and health of culturable species. Most of
these regulatory events are mediated by the growth hormone (GH) and IGF axis (Pérez-Sánchez et al., 2002;
Shimizu et al., 2006). The number of insulin and IGF receptors in fish is regulated by the nutritional status so that
it can be altered according to the physiological need (Planas et al., 2000). Reports are available on the levels of
serum IGF-1 in different fish species such as chinook salmon
Oncorhynchus tshawytscha
(Beckman et al., 2004a;
b), coho salmon
O. kisutch
(Pierce et al., 2004; Beckman et al., 2004a; b), Atlantic salmon
Salmo salar
(Dyer et
al., 2004; Shimizu et al., 2006), tilapia
Oreochromis mossambicus
(Uchida et al., 2003), gilthead seabream
Sparus
aurata
(Pérez-Sánchez et al., 1995; Mingarro et al., 2002; Gómez-Requeni et al., 2004; 2005), channel catfish
Ictalurus punctatus
(Silverstein et al., 2000; Li et al., 2004) and Atlantic cod
Gadus morhua
(Davie et al., 2007).
Li et al. (2014) used transgenic crucian carp,
Carassius auratus
as the first teleost model to study the IGF-1 over
expression in-vivo. Most likely no information is available on the levels of IGF-1 in IMCs. Since Kolkata, India is
known for sewage-fed fish farming, the present study was undertaken to quantify the levels of circulating IGF-1
as growth indicator in IMCs, viz.,
Labeo rohita
,
Catla catla
and
Cirrhinus mrigala
reared under varied conditions
such as captive, normal and sewage-fed ponds.
