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Table 1
COST OF MATERIALS FOR SIX 1 m × 1 m × 1.25 m CAGES
| Material | Cost1 (Naira) |
| “White” wood 5 cm × 5 cm x110 cm | 21 |
| Poultry netting 1.28cm mesh, 1 roll 1 m × 50 m | 100 |
| “Zinc” roofing 6 sheets 65 cm × 183cm | 6 |
| Assorted nails, bailing wire, roofing tar | 5 |
| TOTAL | 132 |
Table 2
FORMULA AND COST OF EXPERIMENTAL FEED 1
| Ingredient | Grammes per kg feed | Fresh ingredient cost/kg (Naira) | Cost per kg of feed (Naira) | ||
| Wholesale | Retail | Wholesale | Retail | ||
| Guinea Corn Bran | 600 | .0142 | .055 | .0082 | .033 |
| Groundnuts3 | 190 | .16 | .20 | .038 | .047 |
| Yam4 | 100 | .06 | .08 | .024 | .032 |
| Dried Clupeids | 100 | .712 | 1.002 | .0712 | .1002 |
| Vitamin mix5 | 10 | 1.00 | 1.00 | .010 | .010 |
| Total | 1 000 | .151 | .222 | ||
1 When purchased in 50 kg bag (Naira 1 = U.S.$ 1.60)
2 Estimated from cost of similar product in Ibadan
3 Groundnuts roasted prior to use.Twenty percent loss in weight
4 Yam is dried prior to use.Seventy-five percent loss in weight
5 Agricare-mix for layers and growers contents per 4.54 kg tin:
| - Vitamin A | 8 | million units |
| - Vitamin D3 | 2 | million units |
| - Riboflavin | 4 000 | mg |
| - Pantothenic acid | 5 000 | mg |
| - Nicotinic acid | 20 000 | mg |
| - Folic acid | 500 | mg |
| - Choline Chloride | 100 000 | mg |
| - Vitamin E | 2 500 | units |
| - Vitamin K | 2 000 | mg |
| - Vitamin B12 | 10 | mg |
| - Cobalt | 1 250 | mg |
| - Iodine | 1 000 | mg |
| - Copper | 10 000 | mg |
| - Manganese | 56 000 | mg |
| - Zinc | 50 000 | mg |
| - Iron | 20 000 | mg |
Table 3
APPROXIMATE ANALYSIS OF EXPERIMENTAL FEED1
| Moisture | 5.0 % |
| Crude Protein | 17.9 % |
| Nitrogen Free Extract | 54.7 % |
| Ether Extract | 12.5 % |
| Crude Fiber | 5.7 % |
| Total Ash | 4.2 % |
| Silica Free Ash | 2.5 % |
| K Calories/kg | 5 300 |
1 Department Animal Science, University of Ibadan
Table 4
PRICES AND FEED INGREDIENTS 1
| Ingredient | Price May 19744 (Naira) | |
| Amprolmix | 84 | per drum |
| Blood Meal | 70 | per long ton |
| Fish Meal | 710 | per long ton |
| Groundnut Cake | 130 | per long ton |
| Luru | 150 | per long ton |
| Maize | 150 | per long ton |
| Guinea Corn | 150 | per long ton |
| Agricare Vitamin mix | 4.50 | per tin (10 lb) |
| Oyster Shells | 50 | per long ton |
| Palm Oil | 80 | 44 gal drum |
| Groundnut Oil | 13 | per tin |
| Rice Bran | 14 | per long ton |
| Salt (NaC1) | 1.80 | 40 lb |
| Palm Kernel Meal | 80 | per long ton |
| D.C.P. | 20 | per cwt5 |
| Dried Yeast | 7.50 | per cwt5 |
| Cattle Microzon | 23.75 | per cwt5 |
| Brewers Grain | 40 | per long ton |
| Molasses | 0.15 | per gal |
| Chick Feed2 | 144 | per long ton |
| Rabbit Feed2 | 108 | per long ton |
| Deteriorated Groundnuts3 | 8 | per long ton |
| Cottonseed Cake3 | 50 | per long ton |
2 Prices at feed stores in Ibadan
3 Prices supplied by R. Coutts, Senior Fisheries Officer, Northwest State
Figure 1
Fig 2 1METER WOODEN FRAME
POULTRY WIRE FISH CAGE
Figure 3
EXPERIMENTAL CAGE 1 M3
FEEDING TRAY
Figure 5
FLOATING PIER
Figure 6
EXPERIMENTAL CAGE ATTACHED TO FLOATING PIER
Figure 7
EXPERIMENTAL FEED WITH INGREDIENTS, GRINDER AND FINISHED PELLETS
