Table 7. Some practical feed formulations for North African catfish Clarias gariepinus
Feed formulations L1 L2 L3 F&B1 G1 G2 G3 G4 G5 G6 G7 G8 G9
Ingredient compostion % % % % % % % % % % % % %
Fishmeal 43 50 50 30 20 55 25   10 10 24.7 20 2
Blood meal       5     10         5 48
Carcass meal   12.5   15         50.2 22.7 10.5 15  
Bone meal           4              
Poultry by-product meal                   10 10    
Milk powder (full fat)   10                      
Lake shrimp meal               34          
Torula yeast 50                        
Soya meal (full fat)     30 15     35         22  
Soya oilcake         15 5       10 10    
Cotton oilcake1         15 5     9       2
Groundnut oilcake         5 4              
Sunflower oilcake1                          
Brewery waste         15 10              
Rice/wheat bran         15 2   66          
Maize bran       11.5               13.5 48
Maize�     20   8 3 15   15        
Wheat   25   22         15 14   22  
Lucern meal                     30    
Tomato waste meal                   20      
Molasses powder                 9.8 10 8    
Palm oil         2 5              
Sunflower oil 3           4            
Fish oil 3           6     3.3 6.8    
Starch/binder           2 2            
Vitamin & mineral premix 1 2.5   1.5 5 5 3         2.5  
Eggs (fresh)     5                    
Proximate analysis                          
Crude protein (%) 55.4       34.5 43.3 40   38 38 38    
Total lipid (%) 9       9 11     8.1 12.5 13.5    
Carbohydrate 21                        
Gross energy (kJ/g)         19.2 20.4              
Digestible energy (kJ/g)                 12 12 12    
Protein/energy ratio (mg/kJ) 30.4                        
Feed Conversion Ratio                 1.2 1.1 1.1    
1 Sunflower and cotton oilseed cakes are interchangable.
Feeds and references
L1 = Larvae and early juvenile crumble diet (South Africa) (Hecht, Uys and Britz, 1988)
L2 =  Larvae and early juvenile diet (Malawi) (Chimatiro and Chirwa, 2007)
L3 = Farm-made starter feed (Uganda) (Rutaisire, 2007)
F&B1 = Fingerling and broodstock diet (Malawi) (Chimatiro and Chirwa, 2007)
G1 = Grower diet (Cameroon) (Pouomogne, 2007)
G2 = Starter diet (CP45) (Cameroon) (Pouomogne, 2007)
G3 = Grower pellet  (Nigeria) (Ayinla, 2007)
G4 = Catfish grower pellet (Kenya) (Nyandat, 2007)
G5 = Example least costed feed 1 (South Africa) (Hecht, Uys and Britz, 1988)
G6 = Example least costed feed 2 (South Africa) (Hecht, Uys and Britz, 1988)
G7 = Example least costed feed 3 (South Africa) ((Hecht, Uys and Britz, 1988)
G8 = Grower pellet (Malawi) (Chimatiro and Chirwa, 2007)
G9 = Farm-made grower formulation (Uganda) (Hecht, 2007)