Will Falconer, DVM Moderator
As the episode mentioned, colostrum is only available to a newborn. Only in their first 12-16 hours of life, in fact! Nursing beyond that is fine, but Mom's antibodies aren't getting through the gut barrier, even if they were in her milk.
Chronic issues in early life are far more common from early life vaccines, especially The Itch. This is almost always allergies, i.e. "immune confusion" about how to react to normal things in the dog's world.
Raw diets help a significant percentage of the allergic guys and Rampart can also help get the immune system back to normal, stopping the allergic over reaction.
If you've tried these strategies and are still having chronic issues remaining, you may need to hire a homeopathic vet to go deeper in treatment. I tell you how to choose a solid one on this page.