thanks
for all the information you gave me but i stay in US. can you suggest me any way of getting that Dr.Brown's bottle? and also i have already consulted the doctor about giving her semi solid foods. my baby's wt is 5.6 kgs as on 1st oct.she is perfectly healthy but the only area o f concern is that i wana to introduce semisolid foods to her, coz till now i have been on leave and now i have to start my job again. and there is no one at my place to lookafter her. i would be leaving her to my mom's place, when i will be at my work. and if she would start taking semi solids,it would be easier for my mom to keep her. because she doesn't really want to take bottle. please let me know if there's any way i can order that bottle online?
thanks Hetal replied. you can gget in ne good stores in US,walmart,target,babyrus,toyrus or ne other baby stores as well..
for online ordering you can try amazon dot com or eopinions dot com..wherein you will find reviews as well..since your baby is 4.5months i think you can get the dr browns starter feeding set..but look for the one that have more of 8oz feedings than just the 4oz small ones,,now your baby apetite will increase and it will be tiring for you to prepare too many 4 oz bottle in longer run !!
if you are keen in buying online, there is one more brand at onestepahead dot com, named second natures who has given successful transition from breast to bottle..and it has those transition nipples to sippy cup aas welll,,in longer run you will need that for easier transition to sippy !!! if not that second nature, then nuby sippy cups are also available in all baby stores...
so go by watever comforts you...try gettting one bottle first, and keep trying the transition,,see if she accepts it...second nature is sometimes also available in target !!!

so buy whatever fits your needs and budget !!
hope this helps...