Page 13 - 240 introduction to fisheries and aquaculture tecnologies-azam
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Introduction to Fisheries and Aquaculture Technologies
05. Risk involvement and a. Protection offish seed from flood.
management in adopting the b. Protection of fish seed from disease.
technology
c. Vigil against the theft offry/fingerlings.
06. Impact of environment No adverse effect of spawn rearing on the
aquatic/environment has been recorded so far.
07. Procedure of transfer This technology can be transferred through relevant
public extension agencies and NGOs. Training and
demonstrations are important for the purpose.
08. Expected outcome a. Fish production and farmer's income will be
increased.
b. It will also create employment opportunity for rural
unemployed youth and women/housewives.
09. Recommendations a Training should be conducted by extension-agencies
and NGOs to improve technical knowledge of the
farmers.
b. Demonstration ponds should be set up in different
parts of the country.
c. BFRI and DoF need to maintain a strong liaison to
disseminate this technology.
3. Collection and Preservation of Pituitary Gland for Artificial Breeding
01. Contact division/person/unit Freshwater Station, BFRI, Mymensingh.
02. Key characteristics of the a. Pituitary gland is collected from the head of common
technology carp and it is easily applicable in artificial breeding of
any culturable fish.
b. It is considered as an income generating technology for
fishermen, fish traders and unemployed youths.
03. Production guidelines a. Pituitary gland has to be collected from live as well as
dead, frozen but fresh and sexually mature common
carp.
b. Initially, the upper part of the skull is culled and
removed by sharp knife, resulting in appearance of
brain.
c. The brain is carefully lifted by forceps. Then, the
pituitary gland becomes visible in the hole and it is
collected by needle. .
d. The gland has to be initially preserved in small vial of
20-30cc with absolute alcohol or acetone. After 24
hours, the alcohol/acetone of the vial has to be replaced
by fresh chemicals.
04. Benefit and cost involvement a. Artificial breeding of carp and catfishes (Magur, shing
etc.) in hatchery is possible by using standard dose of
pituitary gland
b. It is an income generating project by selling collected
pituitary gland at the cost of Tk 2500-3000/g,
particularly for the unemployed youths of the country.
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