My lil man is 5 1/2 months old an am trying to ...

My lil man is 5 1/2 months old an am trying to start weaning him on to bottle but wont have a bar of it...doesnt matter if has breast milk, formula or water he refuses it n just chews on it. Health nurse said its coz he knows milk comes from mum n to leave him with some1 4 couple hours n he should take it...did not happen, just screamed down house n refused bottle...any ideas would b greatly appreciated.