Nursery Rearing of Catla (Catla catla) Under Different Dietary Protein and Fertilization Levels
Nursery Rearing of Catla (Catla catla) Under Different Dietary Protein and Fertilization Levels
Date
1999
Authors
Manissery, J.K
Krishnamurthy, D
Gangadhar, B
Nandeesha, M.C
Journal Title
Journal ISSN
Volume Title
Publisher
Society of Fisheries Technologists (India)Cochin
Abstract
Catla (Catla catla) spawn were stocked at 5 million/ha in a commercial fish seed farm.
Cow dung at the rate of 13,000 (Tl), 15,000 (T2) and 18,500 kg/ha (T3) were applied in split
doses during the experimental period of 21 days. Finely powdered groundnut cake-rice bran
mixture (1:1) served as control diet (A). Experimental diets were formulated by incorporating
fish meal at 10 (B), 24 (C) and 38% (D) level in the control diet. All the diets were tested
at each level of fertilization and fed at equivalent, 3 times and 4 times the initial body weight
for the first 5, next 10 and rest of the days respectively. Irrespective of the diet given, increased
growth and survival of catla and increased weight of plankton were recorded with increase
in fertilization rate. The highest average length and weight gain were observed in fish fed
diet C with 35% protein. The overall survival was the highest in T3 and lowest in tl. Fish
meal based diet with 35% protein was found to be ideal for the nursery rearing of catla
in fertilized ponds to obtain higher growth and survival
Description
Keywords
Catla catla, dietary protein, growth rate, survival rate, pond fertilization
Citation
Fishery Tech 36(2):120-124