Finfish Breeding and Hatchery Management (2+1)

Unit 14 - Breeding of groupers

14.3. Larval rearing

• The hatchlings are small with extremely small mouth opening and hence cannot feed on rotifers.
• The first feed can be egg custard (55-60 um particle size) and trochophore larvae (60-80 um) of green mussel.
• The larvae are obtained by subjecting the mussel to temperature shock treatment.
• CIBA, Chennai is developing a technique for brood-stock development, breeding and larval rearing of this species.