APPENDIX II

Legend Vertical mixer CPM Ace Model pellet mill Ingrediet hopper Scalper Sluice Screen-shaker Sluice Bucket elevator Cooler/dryer Bucket Hoist Cooler/dryer fan assembly Platform

Figure 1. Present feedmill installation (side elevation)

For legend see Figure 1

Figure 2. Present Feedmill (front elevation)

	Legend
	1. Air cyclone 2. Distributor valve 3. Distributor valve (cyclone to bin) 4. Meal bin 5. Meal bin 6. Cooler/dryer 7. Pelleting machine 8. Pelleting machine 9. Fan for air lift 10. Air lift pipe 10a. Venturi intake valve 11. Vertical mixer

Figure 3. Proposed modification A (side elevation)

	Legend
	1. Air cyclone 2. Distributor valve (cyclone to cooler) 3. Distributor valve (cyclone to bin) 4. Meal bin 5. Meal bin 6. Cooler/dryer 7. Pelleting machine 8. Pelleting machine 9. Fan for air lift 10. Air lift pipe 10a. Venturi intake valve 11. Vertical mixer

Figure 4. Proposed modification A (front elevation)

Figure 5. Proposed modification B

1. 3×3 factorial; 9 diets; 3 replicates of 100 fish (average 10 cm) per pool; total: 2 700 fish

2. 2 × 2 factorial; 4 diets; 3 replicates of 200 fish (average 5 cm) per pool; total: 2 400 fish

3. Select best 2 of 4 fry diets from B; factor fish on these into 2 best of the 9 given diets from A; 2×2 factorial; 4 diets; 3 replicates of 100 fish per pool; total: 1 200 fish.

Figure 6. Work programme for development of diets for Clarias culture.

1. 2×2 factorial (2 levels of salt - 2 phosphorus levels); 32% protein
2. 2×2 factorial (2 levels of salt - 2 phosphorus levels); 23% protein: continuing from (A).

Figure 7. Work programme for development of diets for Macrobrachium culture.