Condition factor as growth indicator of Labeo rohita fingerlings cultured using different diets containing bioflocs and commercial feed pellets
- 1Department of Zoology, University of Jammu, J&K, India
- 2Department of Zoology, University of Jammu, J&K, India
Int. Res. J. Environment Sci., Volume 7, Issue (2), Pages 18-23, February,22 (2018)
The present study is focussed on the growth pattern of Labeo rohita fingerlings cultured under laboratory conditions by determining its length weight relationship (LWR) and condition factor (K). Four treatment units including control were employed with one replicate for culture of Labeo rohita fingerlings and maintained for a period of 90 days. Fingerlings fed on commercial feed alone served as control. Insitu bioflocs were used as feed in Treatment 1, whereas in Treatment 2, fingerlings were fed with exsitu bioflocs cultured in another source and harvested for feeding. In Treatment 3 fingerlings were fed with both commercial feed and exsitu bioflocs in the ratio 1:1. Individual weight and length of fingerlings was measured at the start and end of culture period using ruler and weighing balance respectively. The length-weight relationship and condition factor was estimated based on the length and weight data. Length weight relationship (LWR) was computed by the equation: W = a Lb. The value of the regression co-efficient ‘b’ obtained from the LWR was 3.41, 3.85, 1.59 and 3.68 for Control, Treatment 1, Treatment 2 and Treatment 3 respectively. The value of ‘b’ clearly depicts that the growth pattern was allometric and not isometric. The condition factor calculated for Labeo rohita were 0.97, 1.04, 1.03 and 1.03 which indicated that fishes were in good condition in Treatment 1, Treatment 2 and Treatment 3 whereas in poor condition in Control, during the study period.
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