It's been said before that disease prevention - not treatments or cures - is the real key to animal health. Here's a report on a growing trend in animal disease control that's based on a premise of prevention first.
Herrick, John B. D.V.M.
"Planned Health - A Growing Idea in Livestock Disease Control,"
Iowa Farm Science: Vol. 17
, Article 7.
Available at: https://lib.dr.iastate.edu/farmscience/vol17/iss5/7