Fecal Egg Counts (FEC) are an efficient diagnostic tool that can be used for many things. First and foremost, FEC will allow you to diagnose and determine the level of parasitisms that are infecting your flock or herd. In order to effectively and functionally administer parasite control methods, whether it be a dewormer, culling, or some other management strategy, you first must understand what is going on inside of your animals. FEC give you a bird’s eye view of their parasitisms and allow you to closely monitor the situation as the grazing season progresses.