hi , my  booboo gave birth to her 1st litter 5days ago , she had 3 pups , 2 are doing reall well and can now find their own way to their mums teats , one is 7oz , the other 6oz , the 3rd weighs just 3oz and has to be put on to her mums teat . Initially in the first few days , although being by far the smallest when born , she would stay on her mums teat ,mif held on , for about 15-20 min , but now she is only staying on for about 5 mins , we try and  feed  her every 1hr and a half ,she is also very reluctant to take replacement milk , i would be grateful of any ideas , thanks

The same question was asked and answered here: http://www.champdogsforum.co.uk/board/topic/118266.html a few days ago.