|Better Farming Series 27 - FreshWater Fish Farming: How to Begin (FAO, 1979, 43 p.)|
FOOD AND AGRICULTURE ORGANIZATION OF THE UNITED NATIONS
Reprinted, 1982, 1988
© FAO 1979
This manual is an adaptation of the extension booklet "Simon Raises Fish", based on a technical concept of J.W. Miller, FAO Fish Culture Extension Adviser (original graphic interpretation by Jerry Stafford, U.S. Peace Corps). It is one of a series that is finding widespread use at the intermediate level of agricultural education and training.
The original extension booklet was studied and tested in the following projects in the Central African Republic:
· UNDP/FAO Fish Culture Extension Project
· OTS Community Development Project
· U.S. Peace Corps Fish Culture Programme
This version has been prepared by the Inland Water Resources and Aquaculture Service, Fishery Resources and Environment Division (FIRI), of the Food and Agriculture Organization of the United Nations. Further adaptation can be made to the text according to local climatic and ecological conditions.
Requests for permission to issue this manual in other languages are welcomed. Such applications should be addressed to: Director, Publications Division, Food and Agriculture Organization of the United Nations, Via delle Terme di Caracalla, 00100 Rome, Italy.
By raising fish you can get better food and more money for
yourself and your family.
But to do this you will have to take good care of your pond and your fish.
Building your pond
Your success in fish farming depends on where you put your pond and how you build it.
Ask your extension agent to visit your land and give you advice.
He can also advise you about building your compost pile.
You need rich land to have a good crop.
You need rich water to have a good harvest of fish.
To make your water rich, make good compost and put some of it in your pond every week.
Putting the fish into your pond
To know the best kind of fish to put into your pond, ask your extension agent or other farmers who are raising fish.
Do not put too many fish in your pond.
Handle baby fish carefully to keep them strong.
Feeding your fish
Feed your fish every day, and watch them while they eat.
If they are healthy they will eat very quickly.
Give them enough to eat, but not too much.
Taking care of your pond
It is not enough to dig your pond and put fish in it.
You must take care of your crops.
You must take care of your pond.
Harvesting your fish
Harvesting your fish will be a big feast for your family and friends.
Be sure you have everything ready.
Do not forget to keep some baby fish alive so that you can start again.
Be ready to use the big fish or to preserve them or to take them to the market.
Now you must begin again
Will tell you how many baby fish you will need.
When you have begun, try to do better than the first time.
Help your friends to begin fish farming.
Reread all the course
Answer the question paper.
1. Fish farming is the raising of for personal use or profit. It is sometimes called fish
2. By raising fish we make better use of our land and our water.
3. By raising fish your family will have more to The protein in fish will keep your family strong Fish are tasty, like chicken, sheep and goat.
4. If your family is not too big you will have more fish than you need for food and you can sell them at the market.
5. If your family is not too big with more food and more money you and your family can live better.
6. But fish farming is not easy. To raise fish is as hard work as to raise anything else, such as maize, rice, cassava or groundnuts.
7. You will need to learn to do many things.
8. You will need a piece of land where you can build a pond,
A piece of land
a supply of water,
A supply of water
baby fish to begin,
food for your fish.
Food for fish
9. You will need time to build a pond and to care for it regularly. Fish farming takes a lot of time.
10. If there is a fish culture station near where you live you may be able to get help from an extension agent.
Fish culture agent
11. If there is no extension agent you will need to learn many things by yourself.
12. You will need to know the type of soil best for your pond, how to dig your pond,
Dig the pond
how to fill it with water,
Fill the pond with water
how to fertilize it.
Fertilize the pond
13. You will need to know what kind of fish to raise,
The kind of fish to raise
how to put the baby fish into your pond,
Put the baby fish into the pond
what to feed your fish, how to feed them.
Feed the fish
14. You will need to know how to take care of the pond,
Take care of the pond
how to drain it,
Drain the pond
how to harvest the fish,
Harvest the fish
how to use your own baby fish to start again.
Make a new pond
15. This book will help you to begin good fish farming.
16. You must choose a good place to put your pond.
17. Remember that a pond for fish is only one use for your land. Be careful not to build a pond on land that could be better used for something else.
18. It is best to choose a piece of land that has a gentle slope.
19. Do not build your pond on a steep hill or where it can be flooded in the rainy season.
20. Choose a sunny place for your pond, close to your home so people will not come and take your fish away.
The place for the pond
Near your home it is also easier to take care of the fish.
21. The pond should be near water such as a stream or a spring, or in marshy ground where the water in the soil will fill up your pond.
The water must fill up the pond
22. The soil in the place you choose must be good for a fish pond.
23. To test if you have good soil, take a handful of soil from the surface and squeeze it into a ball.
24. Throw the ball of soil into the air and catch it.
Testing the soil
25. If it sticks together it is good soil and will held water well.
26. Bad soil with sand or gravel in it will not stick together and will not held water.
27. Now dig a hole as deep as your waist and test the soil from the bottom of the hole in the same way as before.
Testing the soil
28. If the soil from the surface is good, and the soil from the bottom is good, this is a good place to dig your pond.
29. You will need compost to fertilize your pond. To make a good compost pile will take one month, so you should start making it before you dig your pond. Later this book will tell you how to make compost.
30. Mark out the size of the pond on the ground you have chosen. Each side should be about 14 metres long, 10 metres for the pond and 2 metres for each bank of the pond.
Mark the size of the pond
31. Clear this area of all trees, bushes and grass and take away all the roots.
32. Take away 20 centimetres of topsoil from all the cleared area and put it aside.
33. Now you can dig your pond.
34. The bottom of the pond should be even and sloped toward the deep end.
35. In the shallow end, the water in the pond will have to be about knee- deep.
36. In the deep end, it will have to be waist- deep.
The deep end
37. As you dig the soil out, put it on the 2- metre strips to be the banks of the pond.
38. Do not make the sides too steep, but slope them to make them stronger.
Make the ponds sides stronger
39. Compact the soil as you take it out, to make banks strong enough to stop the water from pushing them out. The banks must be watertight.
40. You will need to make an inlet at the shallow end above the water level to fill your pond.
Fill the pond
41. At the deep end you will need to make an outlet to keep the banks from overflowing if there is too much water in the pond.
42. The inlet and outlet for your pond can be very simple. Large bamboo pipes will work very well.
43. When you have finished digging your pond, put the topsoil you have set aside on the banks. Then plant grass on the banks to stop the soil from being washed away by the rain.
Plant grass on the banks
44. If you need more land for growing crops, instead of planting grass on the banks you may grow food crops such as rice, sweet potatoes or groundnuts.
Growing food crops
45. It is good if other farmers build ponds beside yours. It is easier if others help you in fish farming, and one bank can be used between two ponds.
Using a bank between two ponds
46. Using a small ditch is the easiest way to get water to the inlet and into the pond.
47. If the water comes from a stream, be careful to keep out bad fish. You can do this by using a screen on the inlet.
48. To stop fish from getting out of the pond, put another screen on the outlet.
Stop fish from getting out
49. As a screen you can use:
· a fish trap
· split and woven bamboo
· a clay pot with holes in the bottom
· a piece of metal roofing with holes
· a tin can with holes in the end.
50. To stop other people from taking fish from your pond, you can put some bamboo branches on the pond bottom. This will stop them from fishing or taking fish with a net.
Put bamboo branches on the pond bottom
51. Now you are ready to fill your pond with water.
Fill the pond with water
52. To make more food in the water for the fish you will need to fertilize the pond. You can do this by adding compost.
53. Build a crib with bamboo or other wooden poles, in the shallow part of the pond, and fill it with compost.
fill the crib with compost
54. Several days later the water will become green. When the water is green, there is more natural food in the pond and the fish will grow faster.
55. To keep the water green, put a bucket of compost in the crib every week.
Keep the water green
56. Make a compost pile near the pond. Put it in a shady place protected from rain.
Protect the compost
57. Make your pile in layers. Make the first layer of grass or leaves mixed with a spadeful of topsoil, and damp it with water to make it rot faster.
58 Then make a second layer of animal manure mixed with a spadeful of topsoil and some water.
Make the pile
59. Use animal manure from sheep, goats, cattle, pigs, chickens or ducks.
Use animal manure
60. In place of animal manure you can also use cotton seed, spoiled fruit, household garbage, ashes from the fireplace or night soil.
61. Then make another layer of grass or leaves, and another of manure, until you have a large pile.
Make a large pile
62. Keep your compost pile damp by watering it every few days.
63. Let the compost pile rot for about a month.
Rot the compost pile a month
64. Take compost from the bottom of the pile, or the old part of the pile, where it is most rotten, to put in your pond.
Use the compost from the bottom
65. Add new layers to your pile every week so that you will always have compost.
66. If you have too much compost you can use some to fertilize your land.
67. The first time you stock your pond you will need to find some baby fish.
68. You can get them from a fish- culture station or from another fish farmer.
Get baby fish
69. If you use Tilapia nilotica you will need two baby fish for each square metre. If each side of the pond is 10 metres long (100 square metres) you will need 200 fish (about 2 kilograms or 5 pounds).
Use Tilapia nilotica
70. Be careful not to put too many fish in your pond. Stocking a fish pond is like planting a field. If plants are too close together they grow badly. If there are too many fish in your pond they will grow badly, too, and they will stay small.
Dont put too many fish in a pond
71. If you want to use a different fish, ask your extension agent for help.
72. Before you put the baby fish in the pond, be sure that the water where they are is not hotter or colder than the water in the pond.
73. You can find this out by putting one of your hands in the water with the fish and the other in the pond.
74. If one is hotter or colder slowly put water from the pond in the water with the fish until they are both the same.
Put the baby fish in the pond
75. If you do not do this the fish may die when you put them in the pond.
76. Do not pour the fish into the pond. Gently put the container into the water, tip it a little, and let the fish swim out by themselves.
Put the baby fish in the pond
77. Feed your fish every day.
78. You can give them many things to eat. You can give them
· cassava leaves and cassava wastes
· grain mill sweepings
· rice bran
· beer wastes
· cotton seed pounded in a mortar
· slaughterhouse wastes
· spoiled fruit
· kitchen waste
79. Feed your fish in the shallow part of the pond so that you can see them eat.
See the fish eat
80. Feed your fish only what they will eat each day. Do not give them more than they can eat.
81. If your fish are healthy they will eat quickly.
82. If they do not eat all their food give them a little less the next day. If they eat everything quickly give them a little more the next day.
83. Do not forget to add a bucket of compost every week to the compost crib in the pond.
Add a bucket of compost
84. You must take care of your pond every day when you take food to your fish.
85. Be sure the pond is full of water.
86. Be sure the screens are in place so that your fish cannot get away.
87. Do not let weeds cover more than one quarter of the surface. If there are too many pull them up.
88. Cut the weeds and grass on the banks of the pond.
89. Be sure the water is not leaking through the banks. If you find leaks stop them up right away with good soil.
90. Get rid of birds, frogs, turtles, rats and snakes. They can hurt your fish.
Get rid of birds, frogs, turtles, rats and snakes.
91. Do not take any fish out of your pond during the first five months. After five months you may catch four or five big fish each week to eat with your family.
92. When the fish are big enough, it is time to harvest all of them. Usually, they will be big enough to harvest in about six months.
93. Harvest the fish early in the morning when it is cool.
94. Have some watertight containers ready to store live fish.
95. The easiest way to harvest is by draining the water out of the pond.
Draining the water out
96. Drain the pond by opening the bank at the deep end.
97. Use a screen at the outlet while you are draining so that you will not lose any fish.
98. Use baskets or nets to take the fish out of the water while the pond is being drained.
99. As soon as you find baby fish, put them gently into containers with clean water.
Put the baby fish into containers
100. You will need these baby fish to put back into your pond to begin again. Baby fish are the fish farmer's seed.
101. Keep them in clean water, out of the sun, and move the water around gently with your hand from time to time.
102. If it takes more than half a day to make your pond ready to put back the baby fish, you should keep them alive in a special small pond nearby.
103. The small pond can be a simple hole in the ground about two metres square. You should have it ready before you begin to harvest.
Use a little pond
104. When moving your baby fish from one pond to the other, be very careful not to hurt them.
105. You will harvest from your pond many big fish.
Harvest big fish
106. Fish spoil quickly after they die. Be ready to use them fresh the same day or to preserve them for later use.
107. Use fish to feed yourself and your family. Fish is very good for you and for your children. The smaller your family is the more fish each of you will have to eat.
108. You can sell part of your harvest to neighbours or at the market, either fresh or preserved.
109. To transport fresh fish to market, you should:
· rinse them well in clear water
· put them in a clean and dry container
· cover them with fresh leaves or a mat, and
· keep them out of the sun.
110. A fresh fish will keep better if you remove its guts and rinse it with clean water.
Remove the guts
111. To preserve the fish you cannot sell or eat quickly, dry them in the sun,
Dry the fish in the sun
or smoke them.
Smoke the fish
112. By putting some salt on your fish while you are drying or smoking them you will preserve your fish better.
113. Be sure that your pond is very clean.
114. Repair the banks and cut the weeds and grass around the pond.
Repair the banks
115. Fill the pond with water as before. Be sure to use a screen to keep out bad fish.
Keep out bad fish
116. Put compost in the crib.
Put compost in the crib
117. Then put 200 of your baby fish back in the pond.
Put baby fish in the pond
118. If you have more baby fish than you need, sell some to a neighbour to help him start fish farming.
Sell baby fish
119. You will see that by farming fish you can provide for your family better
Provide for family
and you will have
· fresh fish to eat
· fish to dry, smoke and store
· fish to sell at market
120. If your family is not too big you will have more fish to sell
and you and your family can live better.
FILL IN THE MISSING WORDS:
Raising fish will give you and your family more ... and more ... For your pond it is best to choose land with a ... slope, near to ... and to your ... Such land should not be ... during the rainy season. If a ball of soil ... together, it will hold ... well. Before digging your pond, you ... the area and you take away all ... and ... of soil. To keep out bad fish, you can use a ... To make the water better for the fish, you will add ... once a week. You should handle the baby fish very ... You will ... your fish every day, in the ... part of the pond. To take good care of your pond, you should look for ... in the banks, you should cut ..., and get rid of ... After 5 months, you may catch ... big fish each week. When draining the pond, you will need ... to keep baby fish alive.
ANSWER THE FOLLOWING QUESTIONS:
What do you need to raise fish?
Raising fish has several advantages. Which ones, for example?
How do you describe a good place to put your pond?
How do you test if the soil will held water well?
You have cleared the area and removed the topsoil. how do you proceed now to build your pond?
How can you protect your fish from being stolen?
How do you make a compost pile? how do you use it?
How many baby fish will you need to stock your pond?
What can you feed to your fish? how much? how often?
You have now big fish in your pond and you want to harvest all of them. how will you do it? What will you need?
When you drain your pond, how will you keep the baby fish alive?
If you cannot eat and sell all your big fish on the same day, how can you preserve and store part of them?