What does your vet say?
I've never had that breed but have raised puppies for years (Boxers). Our pups that age would still be getting a lot of their nourishment from Mum although I would be offering a quality kibble moistened with water or a puppy milk replacement every three or four hours, too.
If you decide to try starting your puppy on moistened kibble, be sure to supervise-watch for choking, gagging, and yes, drowning/suffocating. If he falls asleep during feeding and lands nose first, he may lack the ability to wake-up and move his face. Puppies of different breeds grow and develop at breed specific stages and not all 7 week olds have strength and instincts in equal measure.
Also remove the kibble once the puppy loses interest, and don't try to economise by saving it over to the next feeding time because it could spoil even in a short time, causing tummy troubles for your puppy.
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