animal production - CSK Himachal Pradesh Agricultural University ...

(ii) Manuring: After a week of liming, manuring should be done @ 25 tonnes/ha. Initially half of the total quantity
and subsequenlty rest half in equal monthly instalments. For example 1 hactare area (10000 sq. m.) the total
amount of manure required is 2500 kg i.e. 1250 kg to be applied in the beginning and rest to be applied @ 156
kg per month from March to October.
(iii) Fill the pond with water just after manuring and leave it for 12-15 days.
(iv) In case of old ponds, the unwanted weed fish, predatory fish and harmful insects etc. to be eradicated either
manually or by poisoning the water.
March: Stocking of tanks
Feeding
(i) Stocking should be done after 15 days of manuring when water colour is green which is indicative of the presence
of natural food in water. The cloudy day or warmer part of the day is to be avoided for stocking.
(ii) Species to be stocked are common carp, grass carp and silver carps.
(iii) Species ratio- common carp 3:Grass carp 2: and silver carp 1.
(iv) Stocking rate - 15,000 fingerlings/ha. For example 0.1 ha tank is to be stocked with 1500 fingerlings, in the ratio of
750 common carp : 500 grass carp : 250 silver carp.
(v) Stocking upto 15th March.
Feed ingredients : Wheat bran (50%) +
groundnut cake (40%)
+ supplevitamins(15%)
or
Wheat bran (50%) +
Groundnut cake 30%)
+ Fish meal (15%) +
Supplevitamins (0.5%)
+ DCP (5%).
Feed requirement : For a water body of 0.1
ha stocked with 1500
fingerlings is 15 kg
TROUT FARMING
Zone II and III of Himachal Pradesh have vast potentials for the culture of highly prized fish “Rainbow Trout”. The
agroclimatic conditions of the area under these two zones are very congenial for cold water aquaculture. The Deptt. of
Fisheries COVAS, HPKV, Palampur has successfully reared the Rainbow trout fingerlings for table purposes at campus fish
farm, Palampur. As such the conventional practice of culturing Rainbow trout in the high hills only is no more tenable in the
light of recent findings. However, more tenable recent findings included trout can be cultured at lower elevation even upto
1000 m msl, provided the optimum water quality and quantity is ensured.
Selection of site
For trout culture, such a site should be selected where the quality and quantity of water is available through
perenial source like spring, river, etc.
Construction of ponds
39