Impact of sow and piglet PCV2 [Porcine Circovirus type 2] vaccination on post-weaning production parameters | Impacto de la vacunación frente a circovirus porcino tipo 2 en cerdas y lechones sobre los parámetros zootécnicos en el período de post-destete
2011
Fraile, L., Universitat Autònoma de Barcelona, Bellaterra (España). Centre de Recerca en Sanitat Animal | Sibila, M., Universitat Autònoma de Barcelona, Bellaterra (España). Centre de Recerca en Sanitat Animal | Nofrarías, M., Universitat Autònoma de Barcelona, Bellaterra (España). Centre de Recerca en Sanitat Animal | López Jiménez, R., Universitat Autònoma de Barcelona, Bellaterra (España). Centre de Recerca en Sanitat Animal | López Soria, S., Universitat Autònoma de Barcelona, Bellaterra (España). Centre de Recerca en Sanitat Animal | Pérez, D., Universitat Autònoma de Barcelona, Bellaterra (España). Centre de Recerca en Sanitat Animal | Eggen, A. | Segalés, J., Universitat Autònoma de Barcelona, Bellaterra (España). Dept. de Sanitat i Anatomia Animals
Porcine circovirus type 2 vaccines have demonstrated to be very efficient to control postweaning multisystemic wasting syndrome. It is known, however, that high PCV2 antibody titres in piglets at vaccination may interfere with the serological response elicited by the vaccine. Therefore, the objective of this field study was to assess the effect of both sow and piglet vaccination with a single dose of Porcilis PCV on productive parameters at the post-weaning area. At farrowing, all healthy piglets (n=476) from sows that were vaccinated or not against PCV2 one week before mating were included in the study. From each sow, half of the litter was vaccinated with with the same vaccine and the other received placebo. Therefore, the selected animals belonged to one of these 4 groups: Non-vaccinated sows- Non-vaccinated pigs (NV-NV, n=134), Non-vaccinated sows-vaccinated pigs (NV-V, n=135); vaccinated sows- Non-vaccinated pigs (V-NV, n=104) and vaccinated sows-vaccinated pigs (V-V, n=103). All animals were weighted and scored for physical condition at 3-4, 12, 16, 21 and 26 weeks of age and production parameters were registered. The global mortality rate was lower in vaccinated piglets (NV-V=5.2% and V-V=6%) than in non-vaccinated (NVNV= 8.3% and V-NV=11.5%) ones. Average daily weight gain from 4 to 26 weeks of age was 600, 614, 620 and 629 g/day for NV-NV, V-NV, NV-V and V-V piglets, respectively. Statistical differences (p<0.05) were only observed between the NV-NV and V-V groups. In conclusion, PCV2 vaccination in piglets at weaning was able to significantly improve production parameters (independently of the PCV2 vaccination sow status) in comparison with non- vaccinated piglets from non-vaccinated sows.
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Este registro bibliográfico ha sido proporcionado por Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria