There are
two species of frogs that can be reared on a commercial basis, namely the American Bull
frog and Tiger frog. American Bull frogs have to be reared in cement
pens with low water level, that is maximum neck level, whereas
Tiger frogs can be reared in pens made from earth banked up. Water
in pens should be at a higher level where the frogs can dive.
Rearing
period
-
Eggs
take 1 day to change into the tadpole stage
-
Tadpoles
take 2 - 3 months to change into frogs, depending on feeds and
management.
-
These
frogs will then have to be reared for another 4 - 5 months before they
can be marketed, that is, when they reach around 250gm live weight
-
Rearing
period 8 months.
Floor
space
-
Tadpole
stage 1 day - 3 months:
pen size 15' x 15' for 10,000 tadpoles
-
Frogs
Day 1 - 30 days:
pen size 15' x 15' for 3,000 heads
-
Frogs 30
days to marketing age:
pen size
15' x 15' for 1,500 heads
-
Water
level according to size of frogs, that is not higher than neck level.
Feeds
Nutrient contents in frog pellets:
|
1.
|
Crude
Protein
|
30-40%
|
|
2.
|
Crude
Fat
|
Minimum
3%
|
|
3.
|
Crude
Fiber
|
Maximum
6%
|
|
4.
|
Moisture
content
|
Maximum
11%
|
-
Cargill
pellets of a smaller size, that is, size 2 or size 1 for feeds
imported from Taiwan, can be given while in the tadpole stage.
These feeds are given in the tadpole stage. Do not feed from day 1
- 7. From day 8 - 30 feeds size 2 can also be given.
-
Feeds
size 4 are given from day 30 - 75.
-
Feeds
size 6 are given from day 75 - 105.
-
Feeds
size 8 are given from day 105 - 150.
|
