Even a hundred thousand can start a poultry if you want. Remember you said start? So yes a million Naira can start a poultry. What you should start by asking yourself is how many birds will you want to start with? The number of birds you keep will determine how much you get get to spend. Even though that will also depend on the size of your farm. The birds will need space or else they can die of congestion. So you will need to build a poultry house, buy feeding implement, buy the birds, their feed, get a vet Doc. for their vet care, and hire like two persons or more for labour. If you are keeping broilers, they will be ready for sale or consumption by the 8th week.