HOW TO START
The total procedure again can conveniently be divided into three sequential steps.
| • Pre-stocking or pond preparation |  |
| • Stocking |  |
| • Post stocking measures |  |
POND PREPARATION
Prepare the rearing pond same way as nursery pond
| • Dewater and dry the pond. If required repair the dykesand level the bottom. |  |
| • Cut the overgrown grasses of dykes and trim the branches of the trees over-casting the pond. |  |
| • Remove all types of aquatic weeds. |  |
| • Eradicate all the existing stock of fish including predatory and weed fishes. |  |
| • Apply lime followed by manure | |
 | |
| • Test the toxicity of the water in case the pond was poisoned. |  |
| • Examine the availability of fish food organisms in the pond. |  |
| • Rake the pond bottom to remove the marshy gasses and aerate the bottom sediment. |  |
Application of insecticide is not required
STOCKING
Remember the following:
Although one or more species of fry can be reared together, the best result comes from monospecies rearing.
In case of multispecies rearing of fry, compatibility of species should be considered.
Use lower stocking density in case bigger size fingerling is required within short period of rearing.
Use healthy and disease free fry for fingerling rearing.
STOCKING DENSITY AND RATIO
Follow the table for deciding stocking details
| Species | Per decimal stocking density (Numbers) | |||
|---|---|---|---|---|
| Type I | Type II | Type III | Type IV | |
| Catla | 200 | - | 200 | 190 |
| Silver Carp | - | 270 | 100 | 80 |
| Rui | - | 110 | 140 | - |
| Mrigal | - | - | 120 | - |
| M/Common Carp | 160 | 180 | - | 110 |
| Grass Carp | - | - | - | - |
| Sarputi | 200 | - | - | 80 |
| - | - | - | 100 | |
| Total | 560 | 560 | 560 | 560 |
Rearing period will vary from 30 – 40 days
Target size - 10 cm (10g)
METHOD OF STOCKING
Like stocking of spawn, release the fry only after equalizing the water temperature with pond water temperature.
POST-STOCKING MEASURES
1. Manuring
Follow the daily manuring schedule as below:
| MANURE | QUANTITY (DAILY) | |
|---|---|---|
| PER DECIMAL | PER BIGHA | |
| Fresh Cowdung or Poultry droppings | 240 – 250 gm 120 – 125 gm | 8 kg 4 – 5 kg |
| Urea | 4 – 5 gm | 150 – 200 gm |
| T.S.P | 3 gm | 100 gm |
All three manures properly mixed in 3 times of water, stayed overnight and sprayed to pond surface in the morning at about 9 or 10 O'clock.
Suspend manuring during rainy/cloudy days
2. Feeding
Apply feed on daily basis as per the weight of the total stock
Stick to feeding schedule as per the following table
| Period (Day) | Quantity | Ratio of Mixing (%) | Duck Weed | ||||
| g/dec. | kg/bigha | MOC | WB | Blood/Fishmeal | g/dec. | kg/bigha | |
| 1 – 10 | 40 – 50 | 1.3 – 1.6 | 50 | 50 | - | - | - |
| 11 – 20 | 80 – 100 | 2.6 – 3.3 | 50 | 50 | - | 150 | 5 |
| 21 – 30/40 | 200 | 6.6 | 50 | 30 | 20 | 170 | 6 |
Apply duckweed/finely chopped grasses/vegetable leaves etc., in case grass carp fry is stocked.
Wash the duckweed with salt water prior to feeding.
Properly mix the feed ingredients with small amount of water. Remove hard particles if any.
Apply the feed two times a day.
Feeding on trays is economical.
3. Bottom raking
Rake the bottom daily in the morning after stocking.
4. Sampling
Sample to examine the health, growth and survival status of the stock.
5. Cleaning the pond site
Periodically trim the branches of the trees over-casting the pond and remove all types of aquatic weeds.
6. Harvesting and sale
If properly managed, fingerling will grow to 10 cm (10g) within 30–40 days. Adjust harvesting as per demand.
