Our expert says:
Good questions. This type of orphan puppy often has problems later on, but you can do things now to help prevent them. He will be lacking fraternal bonding - company of brothers and sisters - so I suggest you try to find some pups or kittens of about the same age for him to play with as much as possible. Ideally he should have been fostered by another bitch who had pups at the same time, but this isn't always possible. His bonding with you will be very strong and you will have to start leaving him alone for short periods (1 to 5 minutes) to start with. His mother would have done this already, so you just need to be strong about it or you will never be able to leave him alone without separation anxiety. You can also "wean" him off your fingers and get him some chewy toys to suck like a dummy instead. "Manners", such as toilet training are taught by the bitch from the age of 4 weeks, so start now to encourage him to move away from his sleeping area to mess, preferably on a suitable surface (grass, sand or newspaper). Puppy socialising classes can be started at 8 weeks and these are good to teach owners how to train their pups, as well as for the socialising part. He should go for his first vaccination about now (6 weeks), so you may have more questions you want to ask your vet then.
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