Oesophagostomum spp. (Nodular Worm)
Oesophagostomum spp. are relatively large worms and can be found in goats throughout the United States, usually in rather small numbers. These worms feed on blood and can contribute to the overall anemia being caused by H. contortus. Although this worm resides in the large intestine, the larvae are found in the mucosa of both the small and large intestine where, they form nodules, thus the name "nodular worm." Once the larvae leave these nodules, they reside in the large intestine.
Trichuris spp. (Whipworm)
Trichuris spp. are usually found in small numbers. The posterior end of the worm is rather large and visible. The anterior end of the worm is thread-like, thus the name "whipworm." These worms are also blood feeders and, like Oesophagostomum, contribute to the overall blood loss due to other worms. Female worms produce characteristic football shaped eggs with protruding plugs at each end.
