Fasholoids Magna the Life Cycle of F Magna is relatively complex and is similar to the development of the related fluke, F hepatica. Adult F Magna can survive in the liver of the host up to seven years. A hard-ovo cola confirmed red deer, fallodia and rodea as main definitive hosts of F Magna in Europe. In North America, the giant liver fluke is commonly found in cattle, sheep and goats in areas where F Magna is enzutic India. The only indigenous primary definitive host of F Magna is white-tailed deer. Snails originated from Australia infected with United States isolated of F Magna snails originated from France infected with Czech isolated of F Magna recording to several American authors, three types of definitive host exist, definitive hosts dead end hosts aberrant hosts pathology of F Magna infection varies according to host type but some features are shared by all three types. While the eggs of F Magna resemble those of F hepatica, this similarity is of limited use, eggs usually are not passed in cattle and sheep. Recovery of the parasites at Necropsy as well as proper identification of F hepatica or F Gigantica is necessary for definite diagnosis. In the same way as for F hepatica, trickle of endosol seems to be the most effective against F Magna. In some cases, it may be difficult to determine if F Magna or a different fluke such as fasciola hepatica or fasciola Gigantica is causing pathology since all these flukes will have the same clinical signs, ed. for 8032.