Biochemical Characterisation of Different Male Morphotypes of Macrohrachium rosenbergii (De Man)
Biochemical Characterisation of Different Male Morphotypes of Macrohrachium rosenbergii (De Man)
Date
1998
Authors
Sureshkumar, S
Kurup, B. Madhusoodana
Journal Title
Journal ISSN
Volume Title
Publisher
Society of Fisheries Technologists (India)Cochin
Abstract
Protein, carbohydrate, lipid, DNA and RNA contents were studied in the
muscle tissue, hepatopancreas and gonads of male morphotypes of M. rosenbergii
viz. small males (SM), orange clawed males (OC) and blue clawed males (BC) and
their transitional stages, weak orange clawed (WOC) and strong orange clawed
(SOC). Significant difference could be seen in protein, DNA and RNA contents
of muscle tissue, carbohydrate and RNA contents in hepatopancreas and DNA and
RNA contents of the gonads of various male morphotypes. Highest protein content
in muscle was recorded for SOC (19.10%) and minimum for WBC (17.71%) and OBC
(17.52%). Highest values of RNA (1.020 mg/g) and DNA (0.68mg/g) of muscle
tissue was also recorded in SOC. Carbohydrate content (2.37%) and RNA (0.744
mg/g) content of hepatopancreas were also found to be high in SOC when compared
to other male morphotypes. In gonads highest DNA content (0.891 mg/g) was
observed in OBC whereas RNA content was maximum in SBC (1.159 mg/g). Results
of the present study would be useful in providing biochemical evidence for the
existence of morphotypes in male populations of M. rosenbergii
Description
Keywords
Macrobrachium rosenbergii, Male Morphotypes, Biochemical Characterization
Citation
Fishery Tech 35(1):18-25