question: helo dr. my son has completed 4th months just few days back....my query is that i couldn t feed him my milk since his birth...n due to this i hv been feeding him cow milk during daytime and lactogen at nights (if required) ... so please suggest me hw much milk dose is enough for him without mother;s milk....because i feel he is not satisfied with the amount i am feeding him which i think its enough for him...n pls suggest wht is the right age 2 start feeding cerelac or other substitutes....