Lapu-Lapu

 

 

 

 

BASIC INFORMATION
Scientific Name : Epinephelus coioides
English Name : Green Grouper
Local Name : Lapu-lapu
Available Fry Sizes : Fingerlings
Marketable Sizes : 500g–800g in live form
Typical Fish Behavior : Does not move much. Fingerlings have the tendency to eat each other during the early growth stage so they should be sized every two weeks.
Where Grown : Marine cages and ponds; may be adapted to lower salinity if pests and diseases are controlled
Feeds :

Mix of trash fish and formulated Grouper feeds

Feed Conversion Ratio (FCR)

:

Trash fish FCR is 1:6-7

 

 

How to manage each growth stage

 

Nursery: Grows from 1-inch fry to 4-inch fingerling in 30-45 days, feeding on ground fish or fry mash, with sizing every two weeks.

 

Transition: Grows from 4-inch fingerlings to 80-100g juveniles in seawater ponds in about 3 months, feeding on trash fish or fry mash.

 

Grow-out in ponds: Grows from 80g juveniles to 600g in about 6 months, feeding on trash fish alone or a mix of trash fish and commercial feeds. Stocking density depends on availability of aeration. Carrying capacity of aerated grouper ponds is about 5-6mt/ha. Stocking density in brackish ponds without aeration can be adjusted to a maximum of 2mt/ha.

 

Grow-out in marine cages and marine pens: Grows from 80g juveniles to 500-800g, feeding on trash fish alone or a mix of trash fish and commercial feeds. Stocking density depends on water quality, parasite load, and frequency of changing nets. Carrying capacity can be 15-25kg/cu.m. depending on the site and intensity of culture.

 

*Feed Conversion Ration (FCR) measures the amount of feed needed to grow a kilo of fish. This also applies to trash fish feeding. Trash fish FCR is the kilo weight of trash fish needed to produce a kilo of fish being cultured.