A Manual for Operating a Small-scale 
Recirculation Fresh water Prawn Hatchery

Manuals and Guides - BOBP/MAG/13

A Manual for Operating a Small-scale
Recirculation Fresh water Prawn Hatchery

by
R. Chowdhury
H. Bhattacharjee
C. Angell

Executing Agency: FOOD AND AGRICULTURE ORGANIZATION OF THE UNITED NATIONS

BAY OF BENGAL PROGRAMME Madras, India 1993

Table of Contents


The designations employed and the presentation of material in this publication do not imply the expression of any opinion whatsoever on the part of the Food and Agriculture Organization of the United Nations concerning the legal status of any country, territory, city or area or of its authorities, or concerning the delimitation of its frontiers or boundaries.

All rights reserved. Reproduction and dissemination of material in this information product for educational or other non-commercial purposes are authorized without any prior written permission from the copyright holders provided the source is fully acknowledged. Reproduction of material in this information product for resale or other commercial purposes is prohibited without written permission of the copyright holders. Applications for such permission should be addressed to the Chief, Publishing and Multimedia Service, Information Division, FAO, Viale delle Terme di Caracalla, 00100 Rome, Italy or by email to copyright@fao.org

© FAO 2004

ABSTRACT

in Potiya, near Chittagong, Bangladesh, is written for those interested is establishing a small-scale inland freshwater prawn hatchery using the clear water method. It is assumed that the reader has some basic knowledge of aquatic biology, but is not necessarily a degree holder in the subject. The method described is based on the use of brine obtained from salt pans. The brine is diluted with well or surface water to make up the rearing water. Such technology is widely used in commercial hatcheries in Thailand. As rifle is not always available, a simple biofilter, for recirculation of the water, is incorporated in the tank design. The biofilter greatly reduces, or eliminates, the need for water changes during the rearing cycle. The hatchery system described consists of larvae rearing tanks, mixing and brine storage tanks, Artemia incubators and supporting mechanical equipment.

Recirculation systems are becoming increasingly popular and have now been shown to give consistent production of quality post-larvae. All the necessary details for setting up such a simple system are included in this manual, which is also profusely illustrated to make what is described in the text clearer.


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TABLE OF CONTENTS


Manuals and Guides - BOBP/MAG/13pdf

PREPARATION OF THIS MANUAL
CLARIFICATION
INTRODUCTION

BIOLOGY OF ROSENBERGIIpdf

DISTRIBUTION
SUBSPECIES OF M. ROSENBERGII
LIFE HISTORY
MORPHOLOGY
A KEY TO THE LARVAE STAGES OF THE FRESHWATER PRAWN, M. ROSENBERGII

HATCHERY DESIGN pdf

HATCHERY SITE SELECTION
FACILITY DESIGN
TANKS
WATER PUMPS

LARVAE REARINGpdf

WATER SUPPLY AND TREATMENT
BROODSTOCK AND SPAWNING TANK MANAGEMENT
HATCHING TANK MANAGEMENT
TANK MANAGEMENT

FEEDS AND FEEDING PDF

LIVE FOOD
PREPARED FOOD

POTENTIAL PROBLEMS pdf

CHARACTERISTICS OF HEALTHY LARVAE
DISEASE AND ITS PREVENTION

HARVESTING POST-LARVAEpdf

ACCLIMATIZATION OF POST-LARVAE TO FRESHWATER
NURSING POST-LARVAE

PACKING AND TRANSPORTATIONpdf

TRANSPORT IN PLASTIC BAGS
CAUSES OF TRANSPORT MORTALITY
REFERENCES

PUBLICATIONS OF BAY OF BENGAL PROGRAMMEpdf


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