Source Halifax ChronicleHerald CHILTON, Wis. — Lucky, a 7-year-old dairy cow, had been walking with a limp for several weeks when veterinarian Sara Gilbertson was called. Instead of prescribing painkillers, Gilbertson tried an unusual new therapy — a chiropractic adjustment that included a full-length spinal massage. Gilbertson rubbed the Holstein’s spine by gently squeezing it [...]