FIELD DOCUMENT
(DRAFT)

INSTITUTIONAL STRENGTHENING IN THE FISHERIES SECTOR
BANGLADESH

MANUAL ON SEED PRODUCTION OF CARPS CONTENTS

Prepared
by

ANDRAS PETERI
SHIBABRATA NANDI
and
SAMARENDRA NATH CHOWDHURY

MINISTRY OF FISHERIES AND LIVESTOCK, DEPARTMENT OF FISHERIES
GOVERNMENT OF BANGLADESH

UNITED NATIONS DEVELOPMENT PROGRAMME

FOOD AND AGRICULTURE ORGANIZATION OF THE UNITED NATIONS

ACKNOWLEDGEMENTS

The authors wish to express their gratitude to Dr. P.C. Choudhury, C.T.A. of FAO/UNDP Project BGD/87/045 for their advice and comments; to Mr. A.K.A. Rahman, Director of DoF, providing facilities in conducting field work; to Mr.I. Murshed and Mr.D. Mohoshin Farm Managers for their generous help in the fish breeding and rearing. Special thanks are due to Prof. Abu Tweb A. Ahmed, Senior Technical Adviser of the Project for designing and editing this manual.

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CONTENTS

ACKNOWLEDGEMENTS

1. INTRODUCTION

2. FISH SEED PRODUCTION TECHNOLOGY
2.1   Broodfish Management
2.1.1   Recruitment of broodfish
2.1.2   Broodfish requirement
2.1.3   Broodfish pond management
2.2   Hatchery Installations
2.2.1   Carp hatcheries
2.3   Induced Breeding of Carps
2.3.1   Breeding season
2.3.3   Hormone treatment
2.3.4   Stitching of mirror/common carp
2.3.5   Spawning
2.3.6   Stripping and fertilization
2.3.7   Incubation of eggs and hatching
2.3.8    Non feeding larval period
2.3.9   Feeding larva period
2.4   Nursing of Carp Fry
2.4.1   Dewatering, poisoning and treatment of pond soil
2.4.2   Liming
2.4.3   Refilling and manuring ponds
2.4.4   Stocking
2.4.5   Post-stocking pond management
2.4.6   Harvesting of dhani and nursed fry
2.5   Fingerling Production
2.5.1   Fingerling production methodologies used in Bangladesh
2.5.2   Large size fingerling production

3. TRANSPORT OF BROODFISH AND FISH SEED
3.1   Oxygen Requirement
3.2   Preparation of Fish for Transportation
3.3.1   Transportation in polyethylene bags
3.3.2   Fish transportation in open systems
3.3.3   Preparation of aerators

4. ECONOMICS OF FISH SEED PRODUCTION
4.1    Economics of Spawn Production
4.2   Economics of Fingerling Production