Well am glad ur interested in poultry business but bear it in mind that its very sensitive in the sense that it needs full attention from U to obtain optimal result. chicks(day old)now sels for btw 300-500 Naira each I presume. u have to bear in mind the location of the poultry and type of poultry house, either deep litter or battery cage but deep litter is prefarable cos its cheaper to maintain. Also the Breed u want either Layers or Broilers and i think a Bag of Feed now cost close to 2000 Naira which about 20 birds will exhaust in 7 days when feed twice daily.
also weather conditions have to be regulated in the poultry house depending on the weather in the environment u want to site the poultry as birds do not survive under hot consitions. also from time to time vaccines are required to protect birds from infections etc. well at this point i can say with 35K u can raise 20 birds in an unrented deep litter house.
All the best and please dont hesitate if u require more info