RESTRICTED
FI:NIR/66/524/
18 June 1975
NIGERIA
FEASIBILITY OF CAGE CULTURE AND OTHER AQUACULTURE SCHEMES AT KAINJI LAKE
A report prepared for the Kainji Lake Research Project
by
Mark Konikoff
Aquaculture Consultant

FOOD AND AGRICULTURE ORGANIZATION OF THE UNITED NATIONS
Rome,1975

TABLE OF CONTENTS


This is one of a series of reports prepared during the course of the UNDP 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.

ACKNOWLEDGEMENTS

The Food and Agriculture Organization is greatly indebted to the following individuals and institutions for their valuable contributions to the reseatch on the Kainji Lake Research Project:

Mr. V.O. Sagua-Director, Kainji Lake Research Project
Mr. P.O. Otobo-Fisheries Biologist
Mr. A. Abubakar-Fisheries Superintendent
Mr. K.E. Stride-Fishing Technologist
Dr. B. Blake-Resident Director, Shagunu Research Station
Mr. E. Pellinck-Wildlife Ecologist
Dr. S.N. Kaul-Agronomist
Mr. P.A. Roberts-Director, Teaching and Research Farm, University of Ibadan
Mr. G.A. Paulisson-Department of Animal Science, University of Ibadan
Mr. R. Coutts-Senior Fisheries Officer, Northwest State, Nigeria

ABBREVIATIONS

List of abbreviations and units

cm-centimetre
g-gramme
gpm-U.S. gallon per minute
ha-hectare
k-kobo (65 k = U.S.$ 1.00)
kg-kilogramme
It-litre
m-metre
mm-millimetre
ppm-parts per million

Hyperlinks to non-FAO Internet sites do not imply any official endorsement of or responsibility for the opinions, ideas, data or products presented at these locations, or guarantee the validity of the information provided. The sole purpose of links to non-FAO sites is to indicate further information available on related topics.

This electronic document has been scanned using optical character recognition (OCR) software. FAO declines all responsibility for any discrepancies that may exist between the present document and its original printed version.

TABLE OF CONTENTS

ACKNOWLEDGEMENTS

ABBREVIATIONS

1.   INTRODUCTION

1.1   Terms of Reference

1.2   Background Information

1.2.1   General

1.2.2   Limnology

1.2.3   High Intensity Aquaculture

2.   CAGE AQUACULTURE FIELD TESTS

2.1   Cage Construction and Costs

2.1.1   Cage Construction

2.1.2   Cage Costs

2.2   Species Selection

2.3   Feed Formulation and Costs

2.3.1   Feed Formulation

2.3.2   Feed Stability and Palatibility

2.3.3   Feed Costs

2.4   Sites for Cage Culture

2.4.1   Lake Sites

2.4.2   River Sites

2.5   Cage Culture Tests

2.5.1   Jetty Cages

2.5.2   Shagunu Cages

3.   POTENTIAL FOR AQUACULTURE AT KAINJI LAKE

3.1   High Intensity Culture

3.2   Pond Culture

3.3   Enclosure Culture

4.   RECOMMENDATIONS

Appendix 1   REFERENCES

LIST OF TABLES

1.   Cost of Gage Materials

2.   Formula and Cost of Experimental Feed

3.   Approximate Analysis of Experimental Feed

4.   Prices of Feed Ingredients

LIST OF FIGURES

1.   Kainji Lake Reservoir (Cage Culture Sites)

2.   Wooden Frame Poultry Wire Fish Cage 1 m3

3.   Experimental Cage 1 m3

4.   Detail of Cage - Feeding Tray

5.   Floating Pier

6.   Experimental Cage attached to Floating Pier

7.   Experimental Feed with Ingredients, Grinder and Finished Pellets