What are the life cycles of the roundworms in dogs and cats?
T. leonina: Of the roundworms, T. leonina has the simplest life cycle. After an animal ingests infective eggs, the eggs hatch and the larvae mature within the walls and lumen of the small intestine. The adult female worm lays eggs which are passed in the feces. The eggs become infective after remaining in the environment for at least 3-6 days. Animals become infected if they eat something contaminated with infected feces. Mice can act as intermediate or transport hosts of T. leonina. The rodent ingests the eggs, the eggs hatch, and the larvae migrate through the tissues of the rodent. If a carnivore eats the mouse, the larvae are released in the digestive system of the carnivore and develop into adults in the wall and lumen of the intestine. T. canis: Roundworms of the species T. canis have a more complicated life cycle and a very effective way of making sure its species will be passed from generation to generation. Let us take a look. An animal can acquire a T. canis infection several
