ALENCE OF RUMINANT PESTIVIRUS INFECTIONS IN NAMIBIA
DEPNER, K., HUBSCHLE, O . J. B. & L1ESS, B. , 1991. Prevalence of ruminant pestivirus infections in Namibia. Onderslepoorl Journal ofVelerinary Research 58. 107-109 (1991) Following several clinical cases of suspected bovine virus diarrhoea .(BVD) on three Namibian ca ttle farms, a serological survey was cooducted on bovloe , ovme , capnne and wold rUffilOant sera originating from different regions of the country. Neutralizing antibodies to BVD ViruS (BVDV) were detected in 58 % of 1 014 cattle sera, 14 % of 618 sheep sera and 4,6 % of 1 118 goat sera. Sera from seven of teo wildlife species lVere positive with kudu , eland and giraffe having prevalence rates greater than 40 %. BVDV was isolated [rom six clinically affected bovlOes and three healthy heifers persistently infected with BVDV . The survey demonstrated that pestivirus infections are widespread 10 Namibia In hoth domestic and wild ruminants.
Mucosal disease in Botswana
SummaryMucosal disease (MD) is described for the first time in Botswana. Clinical diagnosis of the disease in two herds was supported by serological findings. The main predisposing factors are discussed.RésuméLa maladie des muqueuses (MD) est décrite pour la prmière fois au Botswana. Le diagnostic clinique de la maladie dans deux troupeaux a été confirmé par des observations sérologiques.Les principaux facteurs prédisposants sont discutés.ResumenSe describe por primera vez la Enfermedad de las mucosas (EM) en Botswana. El diagnóstico clínico de la enfermedad fue confirmado por los resultados serológicos. Se discuten los principales factores predisponentes.
Jet, Rocket, Nuclear, Ion and Electric Propulsion: Theory and Design
Jet, rocket, nuclear, ion, and electric propulsion; theory and design , Jet, rocket, nuclear, ion, and electric propulsion; theory and design , مرکز فناوری اطلاعات و اطلاع رسانی کشاورزی