FISH BREEDING TECHNIQUES
I. PRE-BREEDING
Brood Fish Care
i) STOCKING
PARTICULARS
Brood fish should be raised and maintained with the stocking rate of 400 to 500 kgs/acre...
Brood fish should be raised and maintained with the stocking rate of 400 to 500 kgs/acre...
REMARKS
Availability of quality brood stock has a pivotal role...
Availability of quality brood stock has a pivotal role...
ii) FERTILIZATION
PARTICULARS
Bed manuring of the brood stock ponds be carried out with 4000-5000 kgs per acre...
Bed manuring of the brood stock ponds be carried out with 4000-5000 kgs per acre...
REMARKS
Preferably when the water temperature ranges between 25-32°C...
Preferably when the water temperature ranges between 25-32°C...
iii) SUPPLEMENTARY FEEDING
Supplementary feeding of brood stock should be done with Rice polish, Maiz glutin and Mollasses...
Note: Brood stock of grass carp be fed with green fodder...
II) BREEDING
i) Selection of Brood Fish
Brood fish selected...
ii) Sex Ratio
Male : Female = 1 : 1
iii) Hormone Dosage (Ovaprim)
| Fish Species | Female | Male | Remarks |
|---|---|---|---|
| Grass carp | 0.6 – 0.7 ml/kg | 0.1 – 0.2 ml/kg | Stripping after 10–12 hours... |
III) POST BREEDING
Incubation
i) Circular tank
PARTICULARS
Quantity of eggs – 8,00,000 to 10,00,000...
Quantity of eggs – 8,00,000 to 10,00,000...
REMARKS
Proper water flow and screening...
Proper water flow and screening...
Preparation of Fry Ponds
PARTICULARS
The pond should be sun dried before breeding...
The pond should be sun dried before breeding...
REMARKS
Proper drying ensures disinfection...
Proper drying ensures disinfection...
Stocking of Fry
PARTICULARS
Rate of stocking – about 4,00,000 fry/acre...
Rate of stocking – about 4,00,000 fry/acre...
REMARKS
Proper acclimatization improves survival...
Proper acclimatization improves survival...