|  |  | Better Farming Series 35 - Better Freshwater Fish Farming: Further Improvement (FAO, 1986, 61 p.) | 
|  |  | (introduction...) | 
|  |  | Preface | 
|  |  | Introduction | 
|  |  | (introduction...) | 
|  |  | Ways to improve | 
|  |  | The ponds | 
|  |  | Building even bigger ponds or more ponds | 
|  |  | A nursery pond | 
|  |  | Filling and emptying smaller ponds | 
|  |  | Filling and emptying bigger ponds | 
|  |  | Bringing water to your ponds | 
|  |  | Raising the level of your water supply | 
|  |  | Digging a supply ditch | 
|  |  | Digging a return ditch | 
|  |  | Controlling the water in your supply ditch | 
|  |  | Filling your ponds | 
|  |  | How to fill your ponds | 
|  |  | Better fertilizing | 
|  |  | The fish | 
|  |  | Growing fish all year round | 
|  |  | Growing only male fish | 
|  |  | Harvesting your fish | 
|  |  | Harvesting many fish | 
|  |  | Harvesting fish when you have a monk | 
|  |  | Your farm and your fish- ponds | 
|  |  | Your fish- ponds and your health |