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Culture System for Chanos chanos
 Main ref.
 131
 Country
 Sri Lanka
 Name of Farm
 Puttalam, Sri Lanka
 Year
 
 Latitude
 
 Altitude (m)
 
 Longitude
 
 Type of culture
 monoculture
 Sex of fish (m)
 mixed sex
 Culture system
 experimental pens
 
 Punttalam lagoon.
 Production units
 1
 Area (ha)
 0.25
 Depth (m)
 
 Volumeł
 
 Main water source
 lagoon
 Supplemental water source
 rainfall
 
Temp (°C)
Salinity
pH
Oxygen (mg/I)
Oxygen (%)
Alkalinity
(mg/I CaCO3)
 Max
 31.5
 5
 6.5
 16.8
 
 
 Min
 25.5
 
 8
 4
 
 
 Mod
 28.5
 
 7.3
 10.4
 
 
 Description of culture system
 The culture site was in Puttalam lagoon. Fingerlings obtained from nursery pens were stocked in two pens and fed with low cost feeds.
 Nutrient inputs
 Main food
 only added feed
 Feed quantity
 
 (% BW/D):
 
 Feed quality (% crued protein)
 
 Fertilizer input (N)
 
                        (P)
 
 Description of Nutrient input
 The fish were fed artificial feed of 20 % protein consisting of rice bran and fish meal used at a ratio of 8:2. The manually mixed feed was given daily at 3 % of the body weight.
 Production
 Unit cycle
 
 Production period
 190
 Production cycle
 28
 Comments
 
Entered by :   Luna, Susan M. - 1990-10-19     Modified by :  Froese, Rainer - 1994-10-07    
 
Glossary
cfm script by eagbayani, 05.09.99 ,  php script by celloran, 12.10.07 ,  last modified by cmilitante, 31/08/2011