Director Ambekar E. Eknath, Ph. D Head, APED J.K. Jena, Ph. D ...

The size of the platform is to be dec~ded as per the size of the hatchery unit.
It is essential to keep at least 0.5 m distances around each pool as a working
space. Hence, the size of the platform can easily be calculated as per the
size and number of breeding and hatching pool to be kept over ~t. For
example a hatchery unit (breeding pool 2.15 m diameter and incubation pool
1.4 m diameter) requires a platform of size 6.0 x 4.0m (Fig.1).
Overhead Tank
One tank of 2,000 1 or two no of tanks of 1,000 1 capacity each can solve the
purpose. Based on the capacity of the hatchery and operational needs, the
size of the tank is to be decided. These tanks can be made of any material
like PVC, RRC, bricks, etc. The height of the tank should not be less than 10
feet to provide required flow and velocity in the hatchery for its effic~ent
operation.
Pump and Water Supply
One 1.0 HP pump set is required to fill the tanks periodically and to supply
water to hatchery. In case of I: ratio FRP hatchery unit ( one breeding pool
and one hatching pool) the water supply to the unit may be provided with 25
mm (ASTM) pipes from the tanks. In case of 1:3 unit it may be provided
through 50 mm pipe for getting required water flow.
Open Well/ Bore Well
A well of 30,000 llhr yielding capacity is required for the smooth operation of
hatchery and seed farm. However, the water from the bore well should not be
fed directly to the hatchery. It should be stored in a pond for 1-3 days for
release of obnoxious gases and correction of water quality.
Pump House
A pump house is also required to keep pump, starter and also can be used
as a store for keeping feed, fertilizer, medicines, nets, hapa, etc.
Shed
A semiopen type shed of required size is to be provided for housing the
breeding and incubation pools.
Design of Nursery Ponds
.The pond orientation should take into account of the direction of the
prevailing wind. The longer sides of rectangular ponds should be oriented