Milkfish Production and Processing ... - WorldFish Center

Part Two
SEED PRODUCTION
TECHNOLOGY
3 MILKFISH HATCHERY
PRODUCTION SYSTEMS
There are two types of milkfish hatchery production
systems being practiced in the top three milkfish producing
countries. Hatchery operators in Taiwan use
mainly the pond hatchery system (semi-intensive or
outdoor system), while the Philippines and Indonesia
are using both the tank production hatchery system
(intensive or indoor system) and the semi-intensive
system to produce milkfish fry. Large-scale milkfish
hatchery operation usually include broodstock
maintenance, spawning, and fry production while
small scale (backyard) hatchery only produces fry
with eggs or newly hatched larvae purchased from
other hatcheries maintaining broodstocks.
4. PHYSICAL REQUIREMENTS
4.1 The Site
Proper site selection is required not only
to ensure technical feasibility but also economic
viability of the milkfish hatchery. Usually,
remedial measures to beww undertaken in
un-suitable sites are prohibitively expensive and
impractical. Often, abandoning such hatchery
is the only solution.
Milkfish Production and Processing Technologies in the Philippines
a) A milkfish hatchery should be situated
in areas with favorable climatic condition
that would permit year round and
efficient operation. Warm climate and
adequate sunshine throughout the year
are ideal. The aspects to be considered
are as follows:
• Climatic type – Climatic type
(season not very pronounced, relatively
dry from November to April
and wet during the rest of the year)
and type 4 (rainfall more or less evenly
distributed throughout of the year)
are preferred milkfish hatchery sites
in the Philippines.
• Minimal occurrence of typhoon
b) Elevation of the site should be given
particular attention to prevent flooding
of the hatchery and for proper water
drainage.
c) The site should be far from population
centers and free from possible impact
of inland water discharges especially
agricultural pesticides and domestic
or industrial waste.
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