When we walked guide dogs [11 over so many years] we used to give five meals a day - 3 milky types and two meat meals. Milky meals were a powder that was mixed in with milk. I'd try and stick with meat as it contains more protein for development that kibble. A natural diet won't fussy eating habits. Have you tried some fresh mince from the butcher - if you haven't got a reliable source i'd say pedigree tinned isn't a bad choice. I'm feeding my elderly greyhound on it as i can't get a reliable source of fresh meat. Other tinned meat i can't say i'm that impressed with.

Most kibble is 55-60% rice [or similar] and then a bit of meat (dried). I wouldn't feed that to a puppy. Later on if you want to feed dry complete that's your choice.

Do introduce the puppy to marrow bones as soon as possible [4 months] to keep teeth healthy. My lurcher wasn't given bones when younger and has teeth problems and dentals and extractions are very expensive.

Dogs won't refuse to change diet. They need to eat... thus when switching do so increasing amounts carefully over a week or so. I weaned my greyhound off dry complete over a couple of weeks, stools a bit soft a first and then later properly formed - but that is an older dog. My 4 yr lurcher can be switched immediately but he's younger.

Your boyfriend said 'has to get used to dry food'. Why? You choose to feed dry food! Dry complete is convenient and that is why most people choose to feed it.