I was still feeding bottles as i had some milk power left as i had to buy another bag of milk as the 3 i bought were still on bottles,although they were 6 weeks when i got them they were very poor so kept feeding them all as i wanted to use the bag up as i hate to waste it, but i had to have the vet for flystrike and he said to carry on as they were on the thinner side,but since i got my soays they are all together and they lost interest .I am luckly that i only pay trade price for the milk as i have a horse and pet shop.