It is hypothesized the existence of marker antigens capable to define early (acute phase) or late (convalescent phase) infection course with Anaplasma marginale. Five parasitologically free hybrid calves were splenectomized and experimentally infected with a Zulia isolate of Anaplasma marginale. Sera samples were collected before inoculation and during the overall period of the infect... https://partsdutchbroers.shop/product-category/parts/