| FI:TCP/BGD/4508 Field Document 1 October 1986 |
T E C H N I C A L C O O P E R A T I O N P R O G R A M M E
BANGLADESH
A report prepared for the
Fresh Water Pearl Culture Project
based on the work of
R. Pagcatipunan
Pearl Culture Specialist
This report was prepared during the course of the project identified on the title page. The conclusions and recommendations given in the report are those considered appropriate at the time of its preparation. They may be modified in the light of further knowledge gained at subsequent stages of the project.
The designations employed and the presentation of the material in this document do not imply the expression of any opinion whatsoever on the part of the United Nations or the Food and Agriculture Organization of the United Nations concerning the legal or constitutional status of any country, territory or sea area, or concerning the delimitation of frontiers.
ACKNOWLEDGEMENT
The Food and Agriculture Organization is greatly indebted to the following organizations and individuals who assisted the author in the implementation of the project by providing information, advice and facilities:
Fisheries and Livestock Division of the Ministry of Agriculture,
Fisheries Research Institute (FRI),
Freshwater Aquaculture Research Station (FARS),
Mr M.A. Syed, Secretary, Ministry of Fisheries,
Dr Md. Asadur Rahman, Director, FRI,
Dr Saifuddin Shah, Chief Scientific Officer, FARS,
Mr Jahirul Islam, Mrs Montaz Begum and Mrs Nurun Nahar Begum, Counterparts,
Dr A.K.M. Nuruzzaman, former CSO FARS, presently member/Director, BARC.
FOOD AND AGRICULTURE ORGANIZATION OF THE UNITED NATIONS
Rome, 1986
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1. INTRODUCTION AND TERMS OF REFERENCE
2. PEARL CULTURE AT MYMENSINGH
2.1 Description of Pilot Pearl Culture Farm
2.1.1 The farm site
2.1.2 The culture ponds
2.1.3 The laboratory/office space
2.1.4 The pearl mussels
2.1.5 The instruments
2.1.6 The nuclei/irritants
2.2.1 Gathering of mussels
2.2.2 Surgical operations
2.2.2.1 Round pearl culture in gonad
2.2.2.2 Culture of seed pearls on the mantles
2.2.2.3 Blisters
2.2.3 List of mussels operated on
2.2.4 Maintenance of culture ponds
2.3 Training of Counterparts
2.4 Training of Rural Farmers
LIST OF TABLES
1. Monthly Report on Operations Performed
2. Mussels Operated on by R. Pagcatipunan
3. Mussels Operated on by Mrs Momtaz Begum
4. Mussels Operated on by Mrs Nurun Naher Begum
5. Mussels Operated on by Mr Jahirul Islam
6. Record of Operations - Pearl Culture Training, 30 June-3 July 1986
7. Record of Operations - Pearl Culture Training, 27–31 July 1986
Diagram 1 Culture Pond
Map 1 Pearl Culture Farm
Graph 1 Water Temperature Readings
Appendix 1 - Manual on Pearl Culture
1. INTRODUCTION
2. WHAT ARE PEARLS?
3. REQUIREMENTS FOR PEARL CULTURE
3.1 The Culture Site
3.2 The Mussels
3.3 The Instruments
3.4 The Nuclei/Irritant
4. TECHNIQUES IN PEARL CULTURE
5. SELECTION OF SITE
6. PEARL CULTURE ACTIVITIES
6.1 Gathering of Mussels
6.2 Preparation for Operation
6.3 Operation of Mussels
6.3.1 Preparation of Graft Tissues
6.3.2 Insertion of Nucleus and Graft Tissues in the Gonad
6.3.3 Culture of Pearl in the Mantle
6.4 Marking
6.5 Observation /Care After the Operation
6.5.1 Causes of Mortality of Mussels Operated on
6.5.2 Causes of Expulsion of Graft Tissues and Nuclei
LIST OF FIGURES
1. Freshwater Mussel - Lamellidens marginalis
2. Instruments for Pearl Culture
3. Culture of Pearls inside the Gonad
4. Culture of Seed Pearls in the Mantle
5. Wooden Cage for Pearl Culture
6. Diagram Showing the Correct Location of Inserted Nucleus and Graft Tissue
Appendix 2 - Training Programme on Pearl Culture
Appendix 3 - Work Plan on Pearl Culture Project
Appendix 4 - Itinerary of Consultant
Appendix 5 - List of Persons/Officials Contacted
Appendix 6 - References