Premium
Effect of feeding frequency on growth, survival and feed utilization in fingerlings of Catla catla (Hamilton) , Labeo rohita (Hamilton) and Cirrhinus mrigala (Hamilton) in outdoor rearing systems
Author(s) -
Biswas Gouranga,
Jena Joy Krushna,
Singh Sarat Kumar,
Muduli Hare Krushna
Publication year - 2006
Publication title -
aquaculture research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.646
H-Index - 89
eISSN - 1365-2109
pISSN - 1355-557X
DOI - 10.1111/j.1365-2109.2006.01457.x
Subject(s) - catla , labeo , polyculture , biology , zoology , carp , feed conversion ratio , fishery , fish <actinopterygii> , veterinary medicine , aquaculture , body weight , endocrinology , medicine
Fingerling rearing of Indian major carps, Catla catla , Labeo rohita and Cirrhinus mrigala , were conducted in concrete tanks under a polyculture system at a density of 0.3 million fry ha −1 to evaluate the effect of one, two or three feedings per day on growth, survival and feed utilization. Fry were fed with formulated supplementary diet at 10% of biomass per day during the first 15 days, followed by 8% in the next 15 days and 6% thereafter, for 60 days. Feeding of fish three times daily led to higher growth (103.9±8.5 mm/10.3±2.4 g) than those feeding twice (100.2±4.8 mm/9.9±1.5 g) or once (97.2±9.8 mm/9.4±2.1 g) daily, although the values were not significantly different ( P >0.05). Survival rate ranging between 72.3% and 75.1% also did not vary significantly ( P >0.05) among the treatments. However, higher feeding frequencies resulted in better feed utilization as evident from decreasing feed conversion ratio values. The present study suggested requirement of a higher feeding frequency for rohu compared with catla and mrigal.