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A longitudinal survey was carried out to determine and describe the prevalence and intensity of gastrointestinal parasite infections and Dictyocaulus viviparus in a dairy and a beef cattle farm of two different ecological zones in Costa Rica. The influence of anthelmintic treatment, age and...

Jiménez, A. E.; Montenegro, V. M.; Hernández, J.; Dolz, G.; Maranda, L.; Galindo, J.; Epe, C.; Schnieder, T.
Elsevier, Amsterdam, Netherlands
Veterinary Parasitology, 2007, 148, 3/4, pp 262-271