Record Details

RNA-DNA ratios as an indicator of fish growth in golden mahseer (Tor putitora)

KRISHI: Publication and Data Inventory Repository

View Archive Info
 
 
Field Value
 
Title RNA-DNA ratios as an indicator of fish growth in golden mahseer (Tor putitora)
Not Available
 
Creator Sivaraman, G.K.*, Kapila, R. and Mahanta, P.C.
 
Subject golden mahseer
RNA-DNA ratios
fish growth
 
Description Not Available
In this investigation, Golden Mahseer (Tor putitora) having an average body weight ranging between 3.5 and 650 gms were collected from Experimental Mahseer Hatchery and lake, Bhimtal in order to assess the food availability in their natural habitat as well as for the prediction of growth rate. Commonly used molecular indices for fish growth and feeding conditions include RNA concentration (µg/mg tissue) and its ratio to DNA (RNA/DNA). Most of the isolated DNA had no sign of degradation and the spectrophotometer analysis of absorbance at 260 and 280nm provided ratios ranging between 1.70 and 1.90 indicating that quality of DNA was good. The DNA and RNA concentration ranged between 4.06 and 8.86 and 0.92-to 23.70 µg/ mg respectively. The RNA/ DNA ratios ranged from 0.10 to 4.83 with the mean average of 2.52. The means of the RNA/ DNA ratio of the wild fish were relatively higher than that of the reared fry indicating that they were generally in better condition. A positive correlation was also observed between body mass/size of the fish with RNA/ DNA ratio. The RNA concentration and ratio of tissue RNA/ DNA have proven to be a reliable estimator of recent fish growth rate and food availability in their natural habitat.
Not Available
 
Date 2021-07-31T09:21:31Z
2021-07-31T09:21:31Z
2009-01-01
 
Type Research Paper
 
Identifier Not Available
Not Available
http://krishi.icar.gov.in/jspui/handle/123456789/51659
 
Language English
 
Relation 22;
 
Publisher Asian Fisheries Society