management in fingerlings production

MANAGEMENT PRACTICES FOR
FINGERLINGS PRODUCTION MANAGEMENT PRACTICES FOR
FINGERLINGS PRODUCTION.
In the 1 day, the water is reduced to the minimum, the
fresh clean water are run
gently into the production
tank. On the 2 day, the un hatched eggs have to be removed and
freshwater continue to run into
the production tank. On the 3 day, larvae yolk sac would have be exhausted thus,
they require feeding, the
1 form of feeding are in the use of artemia –this can be feed
to the fish for about 2 weeks,
then feed the fry with 0.3mm
coppens, then 0.5mm till
around 4-6 weeks. During these periods, the most
important issue is the removal
or reduction of pollution within
the water body. Also, sorting of the shooter
must be done gradually,
physically until a point when all
the fish can be evacuated and
then sorted into their different
sizes prior to sales or transfer to a juvenile production tank. Within 4 weeks a fingerling of
about 1g are bred and can be
sold for between N6-10 and a
production cycle can be up to
between 10,000 and 50,000
fingerlings within intensive production. On the whole, for the benefit of
a starter of the business the
following check list should serve
as a step by step guide. HATCHING SET UP Holding Tank: A wooden vat, a
plastic tank or concrete tank of
any manageable dimension for
practical purpose a 4 ft by 4 ft
can be used. BROODSTOCK Male and female must have the
following characteristics. Male: a. Average age 1
year 1. Large or medium in size 2. The external genital
must cross the anus Female: a. The vulva must
be reddish or pinkish 1. Average age of 1 year 2. On palpation or gentle
press the egg must come
out, the colour of the
egg must be greenish
yellow and have white spot at the north pole. 3. Medium size – for egg
handling (800-1kg). But
larger size can also be
used with an assistant. HATCHING KITS 1. Saline solution b. Pituitary gland or ovaprim
or derivatives 1. Hand towel d. Plastic bowl 1. Scissors or blade or knife OTHER ISSUES 1. Latency period between
9-12 hours at 26 c 2. Spawning should take 24
hours and above 3. Start feeding from third
day and feed sparingly
to avoid clog of uneaten
food at the bottom of
tank that can cause
pollution 4. Feedings of fry should be
done at least every 2
hours and sparingly 5. Change feed size as the
fish grow up in sizes 6. Sort or remove shoot-
out fry as they emerge
physically. 7. Frequent change of
water is a very
important factor for
success. 8. Avoid stress as much as
possible. 9. Removal by siphoning of
the un fed feed in the water. Call us for tutorials, help, for breeding and for ur fish farm set up. 08032861326.

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