Shane Hernandez, Ph.D. and Lawton Stewart Ph.D.

-Internal parasites, or worms, are a common problem impacting cattle that graze on pastures. When infected, animals may display visible symptoms such as emaciation, diarrhea, and rough hair coat. However, sub-clinical issues may also occur which may impact animal performance such as a decrease in milk yield, weight gain, carcass characteristics, and fertility. This article will discuss the implications of different types of dewormers on cattle performance.