I also have to question the advice of your vet. A 100 gm kit at 4 weeks should not be weaned off of milk. I suppose it's possible they can survive after being weaned, but I would guess they are going to be small and possibly not the healthiest adults because they weren't given proper nutrition as kits.
Maybe your vet is questioning the use of the fresh goat's milk. I myself have concerns about milk that goes bad in 3 days time. It makes me wonder if it was pasteurized or what the deal is. As I said above, my fresh goat's milk has an expiration date of almost a month out, and it stays fresh smelling the entire time. I can't imagine what kind of milk would go bad within 3 days.
Maybe your vet is questioning the use of the fresh goat's milk. I myself have concerns about milk that goes bad in 3 days time. It makes me wonder if it was pasteurized or what the deal is. As I said above, my fresh goat's milk has an expiration date of almost a month out, and it stays fresh smelling the entire time. I can't imagine what kind of milk would go bad within 3 days.