O' GRACIOUS E-PLUS CATFISH FARM
Fish caught for production with scope net
REPRODUCTION IN CATFISH
In O’ Gracious E-Plus Farm artificial reproduction is the only practice use in production of fish. Before production of fish the following are to be ready:
· Female brood-stock
· Male brood-stock
· Ovaprim
· Saline
· Mesh net
Female brood-stock
Matured female fish are selected according to the following criteria:
A well distended, swollen abdomen, sometimes reddish or rose coloured genital papilla from which ripe eggs can be obtained by slightly pressing the abdomen towards the genital papilla.
Male brood-stock
Mostly male that are above 1k is used in fish production at “OGEPF” ideally male fish should be larger than 500 grams and not less than 71/2 months.
Ovaprim
Is the hormone use in the farm and is administered at 0.5m per 1kilogram of fish body weight. This is most common hormone use by fish farmers in Delta region.
Saline
This is prepare by mixing 9gram of NaCl with 1 liter of boiled water, or prepared. It is also sold in the market
Mesh net
This is made up of plastic pipe and a net (size 1mm).
Mesh net use in incubation
Administration of Hormone
The most common method of administering the hormone is by intra-muscular injection into the dorsal muscle. The females are injected in the evening and are kept (separated from the males) in holding facility.
Administration of hormone in catfish dorsally
Note: Cover the head of the breeder with a towel in order to keep it quite during injection. In general most fish keep still if their eyes are covered and the holding facility which they are separated from can be a simple plastic bucket, vat or a half oil drum e.t.c for easy cash in the morning so as to avoid spoilage of eggs.
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