380
‘.
The
depth of the water in the field is usually 12—15 cm in the spring and
summer
and about 18 cm in the autumn.
The
rice
is
transplanted‘ in
fish
fry is stocked either before the transplantation or after the ricè*Êiè
rooted.
Supplemehtary feeding consisting usually of silkworm pupae
‘
,,5
at
increasing rates is given till the harvest is done in Sept/October. u—
.
7
ring this period,
the
rice
fields
are
completely drained of water
rice
harvest.
Though fish grow faster during this period,
the
rice
'
of main interest and hence, takes priority over the fish crop. The fry grows
_
by
this
time
to about 12 cm long weighing about 30 g. On being harvested;
they are either sold or kept in the wintering pond where they
the
temperature rises about 12° C. They are again stocked in the
in the spring.
Prior
to
this,
they are transferred from wintering
the recuperating"Small paddy field where they are given feed of boiled
and dried mysis.
These
yearlings
are
stocked
in
fact
with
the
new
fry and the wild gold—fish Carassius auratus, with the stocking proportion of
400 yearling per crop to ZOO—600 carp fry besides a few gold—fish
1962).
The
rice
fields
are
fertilized
with
inorganic
and
organic
Farmers
also
use
some
small
paddy
fields
as
temporary spawning pond“f‘6r
carp.
—
‘
=
1.2 China
*
_
Originally, in China, common' carp and golden Carp‘were cultivated in
'
the paddy—èfield but more recently silver carp (Hypophthalmichthys
bighead
(Aristichtys;
nobilis),
snakehead
(Channa' sp.),
tilapia*
generally cultivated (Atkinson, ' 1977).
"
'
'
'
The
deep water method of culture is undertakenÏin
,
ces_of Szechiwan, Kweichow, Kwansi and Hupeh where paddy—fields may have as
much ae 0.5 tof0.e”n
the
to' about 250 to 500 g within
3
35
to
75ïkg/100-w2. ‘The‘shallow water methf‘ôä .
is
southern proVinCes where the depth of water
adequate space for fish
ËQ sw1nand
‘dug in
pattern“ïin the
'_
tiläpia
thé—
week
afterthepaddy transplantation and raised_ thér‘e until
'hàl‘,Ÿ€Së
,
The ËaÏËe
…
of s‘îÇ0‘çkihg *ixfäfie“e “from “300049000 fish/ha
on thefert111tyof
are
fed
lY InKwangtongprov1nce,
ha
field ana
paddy
first and sédôî'l‘
pptlylgwth9s7kg/h ffh
1.3 Indonesia
:'
_
-
1
<
‘
.
!
.
‘
Osteochi‘lus ,! «Helostoma‘,= OSphr0‘nemus’
"
fry of
ldtkdtaoooofy/h Jlythfldgf id dp .
fieldsandharvestedafter
hon£h”8ÿft
ji‘i”-fe.e lf= ’
°°nd
bat0h
Of
St00ked after -_3 days of
fingerlings are haïwested in
after 37 days.
_
,_
,
_
,
_
,
…
,,,—,s,,,
…, ' ,Ï
.
.,
,
,
,,
,
‘.
The
depth of the water in the field is usually 12—15 cm in the spring and
summer
and about 18 cm in the autumn.
The
rice
is
transplanted‘ in
fish
fry is stocked either before the transplantation or after the ricè*Êiè
rooted.
Supplemehtary feeding consisting usually of silkworm pupae
‘
,,5
at
increasing rates is given till the harvest is done in Sept/October. u—
.
7
ring this period,
the
rice
fields
are
completely drained of water
rice
harvest.
Though fish grow faster during this period,
the
rice
'
of main interest and hence, takes priority over the fish crop. The fry grows
_
by
this
time
to about 12 cm long weighing about 30 g. On being harvested;
they are either sold or kept in the wintering pond where they
the
temperature rises about 12° C. They are again stocked in the
in the spring.
Prior
to
this,
they are transferred from wintering
the recuperating"Small paddy field where they are given feed of boiled
and dried mysis.
These
yearlings
are
stocked
in
fact
with
the
new
fry and the wild gold—fish Carassius auratus, with the stocking proportion of
400 yearling per crop to ZOO—600 carp fry besides a few gold—fish
1962).
The
rice
fields
are
fertilized
with
inorganic
and
organic
Farmers
also
use
some
small
paddy
fields
as
temporary spawning pond“f‘6r
carp.
—
‘
=
1.2 China
*
_
Originally, in China, common' carp and golden Carp‘were cultivated in
'
the paddy—èfield but more recently silver carp (Hypophthalmichthys
bighead
(Aristichtys;
nobilis),
snakehead
(Channa' sp.),
tilapia*
generally cultivated (Atkinson, ' 1977).
"
'
'
'
The
deep water method of culture is undertakenÏin
,
ces_of Szechiwan, Kweichow, Kwansi and Hupeh where paddy—fields may have as
much ae 0.5 tof0.e”n
the
to' about 250 to 500 g within
3
35
to
75ïkg/100-w2. ‘The‘shallow water methf‘ôä .
is
southern proVinCes where the depth of water
adequate space for fish
ËQ sw1nand
‘dug in
pattern“ïin the
'_
tiläpia
thé—
week
afterthepaddy transplantation and raised_ thér‘e until
'hàl‘,Ÿ€Së
,
The ËaÏËe
…
of s‘îÇ0‘çkihg *ixfäfie“e “from “300049000 fish/ha
on thefert111tyof
are
fed
lY InKwangtongprov1nce,
ha
field ana
paddy
first and sédôî'l‘
pptlylgwth9s7kg/h ffh
1.3 Indonesia
:'
_
-
1
<
‘
.
!
.
‘
Osteochi‘lus ,! «Helostoma‘,= OSphr0‘nemus’
"
fry of
ldtkdtaoooofy/h Jlythfldgf id dp .
fieldsandharvestedafter
hon£h”8ÿft
ji‘i”-fe.e lf= ’
°°nd
bat0h
Of
St00ked after -_3 days of
fingerlings are haïwested in
after 37 days.
_
,_
,
_
,
_
,
…
,,,—,s,,,
…, ' ,Ï
.
.,
,
,
,,
,