Document Detail


Commercial spray-dried porcine plasma does not transmit porcine circovirus type 2 in weaned pigs challenged with porcine reproductive and respiratory syndrome virus.
MedLine Citation:
PMID:  21458335     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
The objective of this study was to evaluate if spray dried porcine plasma (SDPP) containing porcine circovirus type 2 (PCV2) genome supplemented in feed could transmit PCV2 to pigs challenged with porcine reproductive and respiratory syndrome virus (PRRSV). Twenty-three PRRSV-free pigs, non-viraemic for PCV2, were housed in bio-safety level 3 facilities and assigned to four groups in a 2×2 factorial design consisting of PRRSV challenge and a negative control. The diet contained 0 or 8kg SDPP per 100kg of feed. PRRSV challenge groups were inoculated intranasally with 2mL of a suspension containing 10(6) TCID(50)/mL PRRSV. The SDPP used in the study contained 7.56×10(5) PCV2 genome copies per gram. Dietary treatments were fed from 4days prior to PRRSV inoculation until 28days post-inoculation (PI). All challenged pigs developed PRRSV viraemia by day 3PI and PRRSV antibodies were detected in sera by day 14PI, with no difference between diet treatments. Neither PRRSV viraemia nor seroconversion was observed in non-challenged pigs. PCV2 was not detected in the serum of any pigs throughout the experimental period. SDPP containing the PCV2 genome supplemented in feed did not result in PCV2 transmission to either healthy or PRRSV-infected pigs under these experimental conditions.
Authors:
Joan Pujols; Cristina Lorca-Oró; Ivan Díaz; Louis E Russell; Joy M Campbell; Joe D Crenshaw; Javier Polo; Enric Mateu; Joaquim Segalés
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-3-30
Journal Detail:
Title:  Veterinary journal (London, England : 1997)     Volume:  -     ISSN:  1532-2971     ISO Abbreviation:  -     Publication Date:  2011 Mar 
Date Detail:
Created Date:  2011-4-4     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9706281     Medline TA:  Vet J     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2011 Elsevier Ltd. All rights reserved.
Affiliation:
Institut de Recerca i Tecnologia Agroalimentàries (IRTA), Barcelona, Spain; Centre de Recerca en Sanitat Animal (CReSA), Fundación UAB-IRTA, Campus de la Universitat Autònoma de Barcelona, 08193 Barcelona, Spain.
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