| serologic profiles for sarcocystis sp. and neospora caninum and productive performance in naturally infected beef calves. | sarcocystis sp. and neospora caninum infections affect cattle worldwide causing important economic losses. the objective of the present study was to trace serologic profiles for sarcocystis sp. and n. caninum in naturally infected beef calves and analyze their relationship with transmission routes and productive performance. samples were collected in two cow-calf operations located in buenos aires province, argentina. in farm 1, 43 calves were bled and weighed three times. in farm 2, 69 calves w ... | 2010 | 20101411 |