If you have enough breast milk then you should give breast feeding not bottle....mention the weight...

Start and continue exclusive breast feeding followed by burping till 6 months of age.

Rather than bottle feeding , yet it is not too late to find out the reasons of rejecting breast feeding by baby and resume to breast feeding alone . Examine your breast for engorgement , your sweat may have stink of garlic , or you might have confused his brain by giving bottle feeding along with breast feeding . Breast feeding is the best in innumerable ways , it should be given on demand , it’s always sufficient for baby & it’s technique should not be hampered by easy , dirty bottle feeding even though you giving expressed breast milk ! Be bold & determined , go back to exclusive breast milk please .