Alterations in the Growth and Haematological Response of Catla catla (Hamilton, 1822) Exposed to Different Salinities
Alterations in the Growth and Haematological Response of Catla catla (Hamilton, 1822) Exposed to Different Salinities
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Date
2022-05-05
Authors
Mohana Swapna Narra
T. V. Ramana
A. Balasubramanian
T. Neeraja
R. S. Sravani
M. Rajani
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Publisher
Society of Fisheries Technologists (India)
Abstract
Investigation was carried out to study the effect of different salinities (3, 6, 9 ppt and control (0 ppt) on growth and haematological parameters of Catla catla juveniles having length and weight of 12.6±0.13cm and 18.26±0.07g respectively for about 30 days. The study revealed zero salinity (control) encouraged high growth (19.72±1.04 g), Specific Growth Rate (SGR) (0.52±0.13) and Protein Efficiency Ratio (PER) (3.08±0.26) at control than higher salinities. However, Food Conversion Ratio (FCR) was high at 9 ppt (7.30±2.04) and low at control (1.36±0.15). High leukocyte count was observed at 9 ppt (43.02±1.09) compared to control (36.87±0.50) whereas erythrocyte (2.29±0.19), haemoglobin (10.60±0.44) and haematocrit (31.53±1.12) were higher at control than at 9 ppt. Mean Corpuscular Volume (MCV) showed high at 3 ppt (141.14±09.98) while it was low at 9 ppt (131.79±13.46). Nevertheless, Mean Corpuscular Haemoglobin Concentration (MCHC) was high at zero salinity (33.64±1.17) and low at 9 ppt (28.34±1.050). Study inferred that alterations in the growth and haematological parameters occurred at higher salinities compared to lower salinity levels.
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Citation
Fishery Technology 59 (2022) : 125 - 131