– William P. Shulaw DVM MS, Extension Veterinarian, Beef/Sheep, The Ohio State University

Nearly every producer is aware of the need to observe withdrawal times when they use antibiotics in order to prevent antibiotic residues in harvested animals. However, many people are not aware that many commonly used vaccines contain antibiotics as preservatives. For example, the label of one product very commonly used for prevention of respiratory disease contains these precaution statements: “contains gentamicin as a preservative” and “Do not vaccinate within 21 days before slaughter.” Usually this is not Continue reading Antibiotic Residues and Vaccines →