Hereford Cow and Calf (image) American Society of Animal Science Share Print E-Mail Caption This is a beef cow nursing her calf. Dr. Daniel Thomson of Kansas State University suggests antibiotic use can be lessened by improving calf health and management. Credit American Society of Animal Science Image Gallery Usage Restrictions None Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.