Materials for Fish Feed in Kenya
1. Feed Ingredients
Fish feed is formulated by mixing several raw materials to make a balanced diet. These ingredients are crushed separately and later mixed to ratios before extrusion. The most commonly utilized feed ingredients in Kenya include: wheat or rice bran, sunflower or cottonseed cake, cassava, freshwater shrimp and etc..
Proximate analysis of some commonly used fish feed ingredients
Ingredients | % Nutrient Concentration | |||||
Dry matter | Crude protein | Lipid | Nitrogen free extracts | Crude fibre | Ash | |
Cotton seed cake | 93.0 | 35.9 | 6.7 | 44.5 | 7.1 | 5.8 |
Sunflower cake | 94.0 | 21-25 | 5.5 | 29.2 | 39.6 | 5.0 |
Wheat bran | – | 14-18 | 6.5 | 59.5 | 16.0 | 4.0 |
Maize bran | 93.0 | 10-15 | 4.4 | 70.8 | 11.6 | 3.2 |
2. Proportion of Materials in Feed Production
Ingredients | Proportion |
Cottonseed cake | 37% |
Wheat bran | 57% |
Freshwater shrimp | 6% |
Vitamin mix | Minimal |
Note: other easily prepared and economical formulas are as follows:
Mixture of 76% rice bran and 24% fish meal
Mixture of dried freshwater shrimp and maize bran, sometimes with some omena meal added
