Summary
The prevalence of serum antibody to enzootic bovine leukosis (EBL), bluetongue (BT), bovine herpesvirus 1 (BHV 1) and bovine virus diarrhoea (BVD) viruses in-bovine embryo donors (D) and recipients (R) from Minas Gerais State, Brazil was investigated. Of 451 sera (130 D plus 321 R) tested for antibodies against EBL virus 104 (23·1%) were positive. Of 410 sera (130 D plus 280 R) tested for antibody to BT, BHV 1 and BVD viruses the respective number of positive sera were 313 (76·3%), 209 (51·0%) and 153 (37·3%). Donors had significantly (Chi-square test,p<0.05) higher prevalence rates of antibody than recipients to EBL and BVD viruses. The donors were 60Bos indicus and 70Bos taurus purebred cows. Antibody to EBL virus was significantly less common amongBos indicus.
Résumé
Les auteurs ont recherché la prévalence des anticorps sériques au regard des virus de la leucose enzootique bovine (LEB), de la fièvre catarrhale du mouton (FCM), de l’herpès bovin (HB1) et de la diarrhée virale bovine (DVB) chez des bovins donneurs (D) et receveurs (R) d’embryons originaires de l’Etat de Minas Gerais au Brésil. Sur 451 sérums testés (130 D et 321 R) pour leurs anticorps vis-à-vis de la leucose enzootique bovine (LEB), 104 (23·1 p.100) étaient positifs. Sur 410 sérums testés (130D et 280 R) pour leurs anticorps contre la FCM, le virus de l’herpès bovin (VHB1) et celui de la diarrhée virale bovine (DVB), les souches de sérums respectivement positifs étaient de 313 (76·3 p. 100), 209 (51·08 p. 100) et 153 (37·3 p. 100). Les donneurs avaient des taux de prévalence d’anticorps significativement plus élevés que les receveurs (test de x2 àP<0,05) vis-à-vis des virus de la leucose enzootique et de la diarrhée virale bovine. Les donneurs, tous de race pure, étaient au nombre de 60Bos indicus et de 70Bos taurus. L’anticorps de la leucose bovine enzootique était significativement moins courant chezBos indicus.
Resumen
Se investigó la prevalencia de anticuerpos séricos de leucosis bovina (LB), lengua azul (LA) virus herpes bovino 1 (VHB 1) y diarrea viral bovina (DVB), en donantes (D) y recipientes (R), en el estado de Minas Gerais, Brasil. De 451 sueros (130 D más 321 R) analizados para detectar anticuerpos contra leucosis, 104 (23·1%) fueron positivos. De 410 sueros (130 D más 280 R) analizados para detectar anticuerpos contra LA, DVB y VHB 1, los sueros positivos fueron 313 (76·3%), 153 (37·3%) y 209 (51·0%), respectivamente. Los donantes tuvieron tasas de prevalencia de anticuerpos contra LB y DVB mayores que los recipientes (chi-cuadradaP<0·05). Los donantes fueron 60Bos indicus y 70Bos taurus puros. Los anticuerpos contra el virus de la LB fueron menos comunes enB. indicus.
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Castro, R.S., Leite, R.C., Abreu, J.J. et al. Prevalence of antibodies to selected viruses in bovine embryo donors and recipients from Brazil, and its implications in international embryo trade. Trop Anim Health Prod 24, 173–176 (1992). https://doi.org/10.1007/BF02359611
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DOI: https://doi.org/10.1007/BF02359611