Natural co-infection of torque teno virus and porcine circovirus 2 in the reproductive apparatus of swine

This work aimed to detect and study natural co-infection of Circoviridae torque teno virus (TTV) and porcine circovirus 2 (PCV2) in the swine reproductive apparatus. Semen and organs from 17 boars were tested by nested and real-time PCR. PCV2 was amplified from semen (47%), lymph nodes (84.6%) and t...

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Published inResearch in veterinary science Vol. 92; no. 3; pp. 519 - 523
Main Authors Ritterbusch, Giseli A., Sa Rocha, Camila A., Mores, Nelson, Simon, Neide L., Zanella, Eraldo L., Coldebella, Arlei, Ciacci-Zanella, Janice R.
Format Journal Article
LanguageEnglish
Published England Elsevier India Pvt Ltd 01.06.2012
Elsevier Limited
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Abstract This work aimed to detect and study natural co-infection of Circoviridae torque teno virus (TTV) and porcine circovirus 2 (PCV2) in the swine reproductive apparatus. Semen and organs from 17 boars were tested by nested and real-time PCR. PCV2 was amplified from semen (47%), lymph nodes (84.6%) and testicles (35.3%). TTV2 was amplified from 16/17 testis and 13/13 lymph nodes. TTV1 DNA was detected in fewer testicle samples (2/17), which were also TTV2 positive. Analyzed ovaries, follicular fluid and uteri of 83 culled sows showed TTV2, TTV1 and PCV2 from 49.3%, 30.1% and 6.0% of the sows, respectively. Sperm analysis indicated insignificant differences between PCV2 and TTVs positive and negative boars. The most frequent pathologic lesion in sows was endometritis (28.9%), but this was unassociated with PCV2 or TTVs detection. These findings question the importance of PCV2 and TTV2 natural co-infection in the pathology of porcine reproductive failures.
AbstractList This work aimed to detect and study natural co-infection of Circoviridae torque teno virus (TTV) and porcine circovirus 2 (PCV2) in the swine reproductive apparatus. Semen and organs from 17 boars were tested by nested and real-time PCR. PCV2 was amplified from semen (47%), lymph nodes (84.6%) and testicles (35.3%). TTV2 was amplified from 16/17 testis and 13/13 lymph nodes. TTV1 DNA was detected in fewer testicle samples (2/17), which were also TTV2 positive. Analyzed ovaries, follicular fluid and uteri of 83 culled sows showed TTV2, TTV1 and PCV2 from 49.3%, 30.1% and 6.0% of the sows, respectively. Sperm analysis indicated insignificant differences between PCV2 and TTVs positive and negative boars. The most frequent pathologic lesion in sows was endometritis (28.9%), but this was unassociated with PCV2 or TTVs detection. These findings question the importance of PCV2 and TTV2 natural co-infection in the pathology of porcine reproductive failures.
Author Simon, Neide L.
Ciacci-Zanella, Janice R.
Zanella, Eraldo L.
Ritterbusch, Giseli A.
Coldebella, Arlei
Mores, Nelson
Sa Rocha, Camila A.
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Keywords Boar
Porcine torque teno virus
Reproductive
PCV2
Sow
Semen
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Snippet This work aimed to detect and study natural co-infection of Circoviridae torque teno virus (TTV) and porcine circovirus 2 (PCV2) in the swine reproductive...
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SubjectTerms Animals
Boar
Circoviridae
Circovirus - isolation & purification
Deoxyribonucleic acid
DNA
DNA Virus Infections - veterinary
DNA Virus Infections - virology
Failure
Farms
Female
Genital Diseases, Female - veterinary
Genital Diseases, Female - virology
Genital Diseases, Male - veterinary
Genital Diseases, Male - virology
Hogs
Male
Motility
Pathogenesis
PCV2
Polymerase Chain Reaction - methods
Polymerase Chain Reaction - veterinary
Porcine circovirus 2
Porcine torque teno virus
Reproductive
Semen
Semen - virology
Sow
Sperm
Studies
Swine
Swine Diseases - virology
Torque teno virus - isolation & purification
Veterinary medicine
Viral infections
Title Natural co-infection of torque teno virus and porcine circovirus 2 in the reproductive apparatus of swine
URI https://dx.doi.org/10.1016/j.rvsc.2011.04.001
https://www.ncbi.nlm.nih.gov/pubmed/21529865
https://www.proquest.com/docview/1035042550
https://search.proquest.com/docview/1020844211
https://search.proquest.com/docview/963833235
Volume 92
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