this is one area no president can do anything about, it's a supply and demand issue.hate science? in general most animals don't need any vaccine unless they get sick. people do it to their pets as preventive
deer and bears do just fine without it
rabies shots are required if you ever need to take it to the vet
I have two friends that are breeders and who were also vet techs, I can always ask them
farms just need more chickens to keep up with demand, that will take awhile
if you sell the eggs how are you going to make new chickens?
could very well be a factor, diverting 20% of your eggs to the incubator to repopulate those culled