INPUTS
Traditional
Extensive
Semi-Intensive
Intensive
Culture System
Existing Farm Dams
Existing or purpose
built dams/ponds
Purpose built ponds
Tank systems
Stocking Density
Naturally existing
stocks
1-2/m2
3-4/m2
5-10/m2
FEED
Natural food web
sustained by nutrient
in runoff
Supplementary
feeding 1-2
times/week
Supplementary/form
ulated feeding 5 or
more times a week
Formulated pelleted
diet
MANAGEMENT
Occasional harvesting
by trapping
Systematic seasonal
harvest by trapping.
Suitable aeration and
habitat provided.
Complete harvest
and control over
stock via draining of
ponds. Suitable
aeration and artificial
habitat provided.
Exclusion of
predators via fencing
& netting.
Total control over
stock and culture
environment.
SALEABLE YIELD
0-100 Kg/ha/Year
100-500 Kg/ha/Year
1500-2000
Kg/ha/Year
5000-8000
Kg/ha/Year