Steps in artificial breeding

.3.1 Steps in artificial propagation The artificial propagation of
finfishes is a chain of activities,
which between the various species
have some points of similarity
while differing in others. The
various activities involved in the process of artificial propagation of
finfishes are listed below:
a. capture of wild brood fish from
spawning grounds,
b. selection of breeders from wild
stock for natural spawning or for
hormone treatment
, c. rearing of brood fishes,
d. inducement of natural spawning
with or without hormone
treatment,
e. procurement of ripe sexual
products by stripping with or
without hormone treatment,
f. artificial fertilization,
g. incubation and hatching of eggs,
and
h. rearing of larvae, fry, and
fingerlings. As already indicated, not all of the
listed activities must be followed in
the propagation of all fishes; it
depends on the stage at which
artificial intervention starts and the
specific requirements of the individual species. The technology that is to be
applied for the propagation of a
given fish depends on:
a. the spawning habit of the fish,
b. the given or possible local
conditions,
c. the available installations,
equipment, and tools, and
d. the adequacy and skill of the
personnel available for
propagation work. A survey of artificial propagation
as practised in different parts of
the world shows that even for the
same species there is no hard and
fast technology for artificial
propagation. In most cases, the fish culturist adopts that technology
which he finds easiest to apply and
which provides successful results.
However, the degree of success
may not be the same with different
methods. The details of various activities
involved in artificial propagation
are given in the succeeding
s ections.

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