Changes

{{Taxobox

{{Taxobox

|name =Ostertagia spp.                 

|name =Ostertagia spp.                 

|species =''O. osteragi''             

|species =''O. osteragi''             

}}

}}

==Overview==

==Overview==

''Ostertagia spp.'' are small bursate nematodes that parasitse the gastrointestinal tract of mammals and birds. These species are responsible for mortality and morbidity in a number of ruminants especially ''O. ostertagi'' which is widely considered the most important parasite of cattle.

''Ostertagia spp.'' are small bursate nematodes that parasitise the gastrointestinal tract of mammals and birds. These species are responsible for mortality and morbidity in a number of ruminants especially ''O. ostertagi'' which is widely considered the most important parasite of cattle.

==''Ostertagia ostertagi''==

==''Ostertagia ostertagi''==

''T. circumcincta'' and ''O. trifurcata'' are responsible for clinical disease predominantly in lambs. The Pathophysiology of the disease is analogous to [[Ostertagiasis|ostertagiasis]] in cattle, though the type II form of disease is not seen as often in sheep and goats. The main feature in the epidemiology is the occurrence of a peri-parturient rise (PPR) in the number of larvae present as is seen in the disease in cattle.

''T. circumcincta'' and ''O. trifurcata'' are responsible for clinical disease predominantly in lambs. The Pathophysiology of the disease is analogous to [[Ostertagiasis|ostertagiasis]] in cattle, though the type II form of disease is not seen as often in sheep and goats. The main feature in the epidemiology is the occurrence of a peri-parturient rise (PPR) in the number of larvae present as is seen in the disease in cattle.

[[Category:Trichostrongyloidea]]

[[Category:Trichostrongyloidea]]

[[Category:Cattle Nematodes]]

[[Category:Cattle Nematodes]]

[[Category:Sheep Nematodes]]

[[Category:Sheep Nematodes]]

[[Category:Goat Nematodes]]

[[Category:Goat Nematodes]]

[[Category:To_Do_-_NickJ]]

[[Category:To_Do_-_Parasites]]