Browsing by Author "Hird, David"
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Effect of management and host factors on seroprevalence of bovine anaplasmosis and babesiosis in Costa Rica
Perez, Enrique; Herrero, Marco V.; Hird, David; Buening, Gerald B.; Jiménez Sánchez, Carlos (Elsevier B.V, 1993-11-16)The relationships between the seroprevalences of Anaplasma rnarginale, Babesia bige mina, Babesia bovis and some selected factors were assessed. Factors studied were age, breed, herd size, farm size, rotational grazing ... -
Prevalence and risk factors for Trichomonas foetus infection in cattle in northeastern Costa Rica
Ortuno, Ana; Chacón, Jorge; BonDurant, Robert; Noordhuizen, Jos; Perez, Enrique; Conrad, Patricia A.; Hird, David (Elsevier, 1992-05-27)Two studies (one pilot and one cross-sectional) were conducted in the two main livestock-rearing areas of Costa Rica using an improved method (In-Pouch TF) for the detection of Trichomonas foetus infection in bulls. Herd ...