Impact of Stressors on Performance of Weaned Calves An Overview of Our Research on Acute Phase Proteins and Beef Cattle Performance

The science of stress is a complex topic. Indeed, many individuals view, define, and address stress differently. Nonetheless, collectively, we can agree that stress is the result of an external or internal pressure which causes an organism to deviate from homeostasis. Professionals engaged in food animal production systems are certainly aware of the range of stressors impacting their animals; however, the repercussions of these events on nutrition and performance considerations are recently becoming better understood. This article discusses research findings directed toward the acute phase protein reaction and performance of beef calves in response to the stressors related to normal production practices such as weaning, vaccination, castration, and transportation.