202
G. W. Wohlfârfh
,
a
result
of
a
continuous process of
calling the less
individuals,
and.oomprize a tiny proportion of the
knowledge
of
the
these
color
.
rationalize this processa
It
is possible that Japanese
have
some
knowledge of the heredity of color patterns, but
these_
are
commercial
secrets,
In some commercial advertisemente
certain color patterns are claimed to be
true
(Anon,
.
-
»
…,,
METHODS OF COMPARING DIFFERENT GENETIC GROUPE DE CAR?
,
The
evaluation of
different genetic groups of fish
an
adequate testing technique.
The.obvious
method
of
15tookàü9
each
»group_
into
a
number of replicated ponds (or other gr@WËh
vessels),
requires- a_ large …number,-of- ponds
due
oonsiâerable variation in prodùotivity among experimental
This severely limits the number of genetic
groups
in
a
given
test,
when they are stocked into ’seperate' ponds, This problem
was
solveâ
by stocking all—tested oarp groups
together ,inb°
series
'of
'oommunal'
ponds,
In
this
the
genètiC
characteristics of
the
tested
groups and the
the
ponds
are
not
confounded, resulting in a drastio reduction
the
number
of
ponds required even
when
thenumber
of
is_
large. Since the practical-aim of selective breedin9
is to produce a group of fish with
improved…
when
on
,its
…own
into
the‘testing and
production environments are not
identioal…
evaluation
£Qf
of
…oomparatiVe… growth
oarrieâ out in ççmmunal
methodologiGêl
of evaluating and oorreotinggüï
of
weight gains; and ànvestigatiÿ the
ghetWEenx growth
testing enables ub$lizîng
testing
:facilityr*‘5°
'1939-w35:
«large
“eâGh
gr5una Different genetic
:äiàùs… of» oarp
have
in Israel
1951?
\?»Japan‘ ;( Suzuki
'
al
,! ;1197—6 ,
1971;
CONCLUSION
aw;‘
»
:
Highl‘1y
f
‘;—:ÏQÏÔWD1H aquacul ture
Él‘5‘bêl‘5 ::»'
i:lïaIlÿ '
'ï
Sélect iVB
marker5
‘îiiÉiït'uaŸ'iÏïên él ‘L"Ç
v.“.
(:=:
‘:;x
-'
‘
G. W. Wohlfârfh
,
a
result
of
a
continuous process of
calling the less
individuals,
and.oomprize a tiny proportion of the
knowledge
of
the
these
color
.
rationalize this processa
It
is possible that Japanese
have
some
knowledge of the heredity of color patterns, but
these_
are
commercial
secrets,
In some commercial advertisemente
certain color patterns are claimed to be
true
(Anon,
.
-
»
…,,
METHODS OF COMPARING DIFFERENT GENETIC GROUPE DE CAR?
,
The
evaluation of
different genetic groups of fish
an
adequate testing technique.
The.obvious
method
of
15tookàü9
each
»group_
into
a
number of replicated ponds (or other gr@WËh
vessels),
requires- a_ large …number,-of- ponds
due
oonsiâerable variation in prodùotivity among experimental
This severely limits the number of genetic
groups
in
a
given
test,
when they are stocked into ’seperate' ponds, This problem
was
solveâ
by stocking all—tested oarp groups
together ,inb°
series
'of
'oommunal'
ponds,
In
this
the
genètiC
characteristics of
the
tested
groups and the
the
ponds
are
not
confounded, resulting in a drastio reduction
the
number
of
ponds required even
when
thenumber
of
is_
large. Since the practical-aim of selective breedin9
is to produce a group of fish with
improved…
when
on
,its
…own
into
the‘testing and
production environments are not
identioal…
evaluation
£Qf
of
…oomparatiVe… growth
oarrieâ out in ççmmunal
methodologiGêl
of evaluating and oorreotinggüï
of
weight gains; and ànvestigatiÿ the
ghetWEenx growth
testing enables ub$lizîng
testing
:facilityr*‘5°
'1939-w35:
«large
“eâGh
gr5una Different genetic
:äiàùs… of» oarp
have
in Israel
1951?
\?»Japan‘ ;( Suzuki
'
al
,! ;1197—6 ,
1971;
CONCLUSION
aw;‘
»
:
Highl‘1y
f
‘;—:ÏQÏÔWD1H aquacul ture
Él‘5‘bêl‘5 ::»'
i:lïaIlÿ '
'ï
Sélect iVB
marker5
‘îiiÉiït'uaŸ'iÏïên él ‘L"Ç
v.“.
(:=:
‘:;x
-'
‘