8-9 weeks is the norm. They usually let them stay past the 7-8 week fear period. I have gotten a pup at 6 weeks from a breeder who kept them in poor conditions and she came out just fine. She was an AmStaff, however. Don't know how it might effect a GSD pup. Goat's milk is OK but do not feed cow's milk. I would just add some warm water to the kibble and let it soak for a little while.
Feeding large breed pups:
http://www.newmanveterinary.com/large.html
Here are the indgredients for Authority Large Breed Puppy
Large Breed: Chicken, Chicken Meal (Source of Glucosamine and Chondroitin), Brown Rice, Corn, Oat Groats, Corn Gluten Meal, Dried Beet Pulp, Chicken Fat (Preserved with Mixed Tocopherols), Natural Flavor, Canola Oil, Dried Egg Product, Fish Oil, Potassium Chloride, Choline Chloride, Vitamin and Mineral Supplements (Zinc Sulfate, Ferrous Sulfate, Vitamin E Supplement, L-Ascorbyl-2-polyphosphate (source of Ascorbic Acid), Copper Sulfate, Vitamin A Supplement, Manganese Sulfate, Niacin, D Calcium Pantothenate, Vitamin D3 Supplement, Riboflavin, Calcium Iodate, Pyridoxine Hydrochloride, Thiamin Mononitrate, Folic Acid, Sodium Selenite, Biotin, Vitamin B12 Supplement), Dried Chicken Cartilage (Source of Glucosamine and Chondroitin).
If he does well on this food and doesn't develop skin or digestion problems, leave him on it. If he does, then look for a large breed pup food with less corn products and no beet pulp in it and a different protein source. I raised Dot on Taste of the Wild Fish and Potato and she has does very well on it.
Here is a good source of info on dog food:
http://www.dogfoodadvisor.com/dog-food-reviews/authority-dog-food-dry/
and their recomendations for puppy food, which I consider good:
http://www.dogfoodadvisor.com/best-dog-foods/best-puppy-foods/
Feeding large breed pups:
http://www.newmanveterinary.com/large.html
Here are the indgredients for Authority Large Breed Puppy
Large Breed: Chicken, Chicken Meal (Source of Glucosamine and Chondroitin), Brown Rice, Corn, Oat Groats, Corn Gluten Meal, Dried Beet Pulp, Chicken Fat (Preserved with Mixed Tocopherols), Natural Flavor, Canola Oil, Dried Egg Product, Fish Oil, Potassium Chloride, Choline Chloride, Vitamin and Mineral Supplements (Zinc Sulfate, Ferrous Sulfate, Vitamin E Supplement, L-Ascorbyl-2-polyphosphate (source of Ascorbic Acid), Copper Sulfate, Vitamin A Supplement, Manganese Sulfate, Niacin, D Calcium Pantothenate, Vitamin D3 Supplement, Riboflavin, Calcium Iodate, Pyridoxine Hydrochloride, Thiamin Mononitrate, Folic Acid, Sodium Selenite, Biotin, Vitamin B12 Supplement), Dried Chicken Cartilage (Source of Glucosamine and Chondroitin).
If he does well on this food and doesn't develop skin or digestion problems, leave him on it. If he does, then look for a large breed pup food with less corn products and no beet pulp in it and a different protein source. I raised Dot on Taste of the Wild Fish and Potato and she has does very well on it.
Here is a good source of info on dog food:
http://www.dogfoodadvisor.com/dog-food-reviews/authority-dog-food-dry/
and their recomendations for puppy food, which I consider good:
http://www.dogfoodadvisor.com/best-dog-foods/best-puppy-foods/