Journal of the Marine Biological Association of India

Evaluation of growth and biochemical responses of Cyprinus carpio reared in freshwater and inland saline water

Volume 63 Issue 1

D. Patro, P. P. Srivastava, T. Varghese, Subodh Gupta, P. Kumar and A. Prabhakaran

doi:10.6024/jmbai.2021.63.1.2150-04

Abstract

An experiment was conducted for 60 days to evaluate the growth performance and survival of Cyprinus carpio in inland saline water (ISW). One hundred twenty acclimatized fingerlings (average body weight- 5±0.5 g) were distributed between two treatments (FW-0.5 ppt and ISW-5ppt) in four replicates fed with control diet. The fishes reared in ISW showed significantly lower (p<0.05) weight gain percentage, and PER than the fishes reared in freshwater (FW). The metabolic enzyme activities (AST and ALT and glucose-6 phosphatase) in the liver was significantly higher (p<0.05) in the ISW group. These results revealed that the rearing of common carp in 5 ppt ISW results in significant reduction (p<0.05) in growth and increased metabolic stress. Even though there was a 10% reduction (p<0.05) in growth in common carp after rearing in ISW, the study reveals 100% survival of the fish. Thus, it can be inferred that common carp can be reared in inland saline water, which shows a prospective way to utilize the ISW for aquaculture

Keywords

Digestive enzymes, metabolic enzymes, oxidative stress enzymes

Date : 15-03-2021