Impact of porcine circovirus type 2 (PCV2) vaccination on boar semen quality and quantity using two different vaccines

2014 ◽  
Vol 82 (4) ◽  
pp. 574-579 ◽  
Author(s):  
K. Caspari ◽  
H. Henning ◽  
F. Schreiber ◽  
P. Maass ◽  
R. Gössl ◽  
...  
Keyword(s):  
Semen Quality ◽  
Porcine Circovirus Type ◽  
Porcine Circovirus Type 2 ◽  
Porcine Circovirus ◽  
Pcv2 Vaccination ◽  
Boar Semen

scholarly journals Cross-sectional study on viraemia and shedding of porcine circovirus type 2 in a subclinically infected multiplier sow herd

2018 ◽  
Vol 184 (6) ◽  
pp. 189-189 ◽  
Author(s):  
Matthias Eddicks ◽  
Bettina Beuter ◽  
Ralf Stuhldreier ◽  
Thomas Nolte ◽  
Sven Reese ◽  
...  
Keyword(s):  
Horizontal Transmission ◽  
Porcine Circovirus Type ◽  
Cross Sectional Study ◽  
Porcine Circovirus Type 2 ◽  
Porcine Circovirus ◽  
Sectional Study ◽  
Preventive Healthcare ◽  
Cross Sectional ◽  
Pcv2 Vaccination

Vertical and horizontal transmission of porcine circovirus type 2 (PCV2) plays an important role for the spread of PCV2 within piglet-producing farms and following production steps. Further information is crucial to learn about the principles of PCV2 circulation among sows in piglet-producing farms to improve preventive healthcare concerning porcine circovirus diseases (PCVD) in downstream production steps. The present study was conducted as a cross-sectional study in a 400 sow multiplier herd in Germany with no PCV2 vaccination. Blood, faeces and saliva of the sows in all stages of production were tested for PCV2-DNA by real-time PCR. Results were analysed under respect of the parity and stage of production of the sows. PCV2-DNA in faeces or saliva was observed especially in young sows. Highest rates of viraemia in productive sows were found in the early stages of pregnancy. The results revealed that particularly gilts from the quarantine and rearing area and sows up to the second parity play a major role for the spread of PCV2 and thus for the maintenance of PCV2 infection in sow herds. Furthermore, the stage of production had a significant influence on the detection rate of PCV2-DNA in serum, saliva or faeces of the sows.

scholarly journals Effect of Porcine Circovirus Type 2 (PCV2) Vaccination of the Dam on PCV2 Replication In Utero

2009 ◽  
Vol 16 (6) ◽  
pp. 830-834 ◽  
Author(s):  
D. M. Madson ◽  
A. R. Patterson ◽  
S. Ramamoorthy ◽  
N. Pal ◽  
X. J. Meng ◽  
...  
Keyword(s):  
Neutralizing Antibodies ◽  
Specific Antigen ◽  
Porcine Circovirus Type ◽  
Porcine Circovirus Type 2 ◽  
Reproductive Failure ◽  
Porcine Circovirus ◽  
Serum Samples ◽  
Pcv2 Vaccination ◽  
Group 3

ABSTRACT The aims of this study were to determine if porcine circovirus type 2 (PCV2) vaccination of the dam is effective in preventing fetal PCV2 infection and reproductive failure. Twelve pregnant, PCV2-naïve sows were randomly divided into four groups, with three sows in each group. Group 1 sows served as noninoculated, nonvaccinated negative controls, group 2 sows were vaccinated with a commercially available PCV2 vaccine at 28 days of gestation and were not inoculated, group 3 sows were vaccinated at 28 days of gestation and inoculated with PCV2b at 56 days of gestation, and group 4 sows were inoculated with PCV2b but were not vaccinated. Serum samples from all sows were collected weekly throughout the gestation period, and sows were allowed to farrow naturally. At parturition, sow colostrum samples, presuckle serum samples, and tissues from the piglets were collected. Reproductive failure was not observed under the study conditions. PCV2 vaccination induced PCV2-specific immunoglobulin G and serum neutralizing antibodies in sows from groups 2 and 3 and prevented detectable PCV2 viremia in the dams after challenge. In group 3, PCV2 DNA was detected in colostrum samples, fetuses, and live-born pigs; however, microscopic lesions and PCV2-specific antigen were not present in any of the fetuses in this group. The results from this study indicate that vertical transmission of PCV2 can occur in PCV2-vaccinated dams.

scholarly journals The effect of porcine circovirus type 2 (PCV2) vaccination of male piglets on sperm quality at the age of puberty

2019 ◽  
Vol 88 (2) ◽  
pp. 193-200
Author(s):  
Theodoros Karapanos ◽  
Ioannis Tsakmakidis ◽  
Spyridon Kritas ◽  
Panagiotis Tassis ◽  
Georgios Tsousis ◽  
...  
Keyword(s):  
Sperm Quality ◽  
Porcine Circovirus Type ◽  
Porcine Circovirus Type 2 ◽  
Porcine Circovirus ◽  
Epididymal Sperm ◽  
Head Displacement ◽  
Pcv2 Vaccination ◽  
Young Boars ◽  
Head Morphology

The objective of the study was to investigate the effect of porcine circovirus type 2 (PCV2) vaccination in piglets on sperm quality of young boars. A total of 136 sows were divided in four groups of 34 animals each (17 vaccinated with Circovac®, Merial and 17 unvaccinated in each group). A total of 1 200 piglets were selected, half of which were vaccinated against PCV2 on the 21st day (Porcilis® PCV, MSD) and the other half was left unvaccinated. Four groups of 300 pigs each were formed as follows: PS group (vaccinated sows + piglets), S group (vaccinated sows + unvaccinated piglets), P group (unvaccinated sows + vaccinated piglets), C group (unvaccinated sows + piglets). Furthermore, 80 boars (20 piglets per group) were selected and slaughtered at the age of 5.5 months and weight of 95 ± 5.5 kg and their epididymal sperm was collected and evaluated for motility and kinetics, concentration and morphology. Additionally, 10 pigs from each group were used for blood sampling and serological testing for PCV2 IgM and IgG antibodies at the age of 21, 70, 110 and 150 days. The IgG and IgM patterns suggested that the piglets were coming into contact with PCV2 early in life. The S group demonstrated significantly lower curvilinear velocity (VCL, μm/s), amplitude of lateral head displacement (ALH, μm) and significantly higher head abnormalities (%) compared to other groups (P < 0.05). In conclusion, vaccinated young boars showed some improved epididymal sperm kinetic indices and head morphology.

scholarly journals Influence of Maternal Antibodies on Efficacy of Porcine Circovirus Type 2 (PCV2) Vaccination To Protect Pigs from Experimental Infection with PCV2

2007 ◽  
Vol 15 (3) ◽  
pp. 397-401 ◽  
Author(s):  
T. Opriessnig ◽  
A. R. Patterson ◽  
J. Elsener ◽  
X. J. Meng ◽  
P. G. Halbur
Keyword(s):  
Clinical Signs ◽  
Neutralizing Antibody ◽  
Antibody Test ◽  
Porcine Circovirus Type ◽  
Porcine Circovirus Type 2 ◽  
Maternal Antibodies ◽  
Porcine Circovirus ◽  
Group Designation ◽  
Pcv2 Vaccination

ABSTRACT Due to the ubiquitous nature of porcine circovirus type 2 (PCV2) in the pig population and the increasing use of PCV2 vaccines in breeding herds, the majority of dams have been exposed to field PCV2 or PCV2 vaccines, resulting in piglets with varied levels of passively acquired PCV2 maternal antibodies. The objective of the current research was to investigate the influence of passively acquired anti-PCV2 antibodies on PCV2 vaccine efficacy. Sixty 26-day-old pigs were divided into four groups: vaccinated pigs with no maternal PCV2 antibodies at the time of vaccination (VAC-NEG; n = 9), vaccinated pigs with maternal PCV2 antibodies at the time of vaccination (VAC-POS; n = 21), nonvaccinated pigs with no maternal antibodies at the time of challenge (NVAC-CNEG; n = 15), and nonvaccinated pigs with maternal antibodies at the time of challenge (NVAC-CPOS; n = 15). Vaccinations and challenges were performed on trial days 0 and 28, respectively, according to group designation. The pigs were monitored for clinical signs of disease daily and weighed weekly, and blood was collected weekly. All pigs were necropsied on trial day 49, and tissues were evaluated for macroscopic and microscopic lesions. Serum was evaluated using PCV2 immunoglobulin G (IgG) and PCV2 IgM enzyme-linked immunosorbent assays, quantitative PCV2 PCR, and a serum PCV2 neutralizing antibody test. In comparison to NVAC-CPOS pigs, VAC-POS animals had significantly (P < 0.01) less severe microscopic PCV2-associated lymphoid lesions and significantly (P < 0.04) reduced PCV2 genomic copies in serum following PCV2 challenge. These results indicate that vaccination with Suvaxyn PCV2 One Dose reduces viremia and prevents microscopic lesions associated with PCV2 in the presence of maternal antibodies.

scholarly journals Differential Effects of Porcine Circovirus Type 2 (PCV2) Vaccination on PCV2 Genotypes at Japanese Pig Farms

2010 ◽  
Vol 72 (1) ◽  
pp. 35-41 ◽  
Author(s):  
Yoichi TAKAHAGI ◽  
Shinji TOKI ◽  
Yasutaka NISHIYAMA ◽  
Fumiki MORIMATSU ◽  
Hiroshi MURAKAMI
Keyword(s):  
Porcine Circovirus Type ◽  
Porcine Circovirus Type 2 ◽  
Porcine Circovirus ◽  
Differential Effects ◽  
Pig Farms ◽  
Pcv2 Vaccination

Removal of virus from boar semen spiked with porcine circovirus type 2

2011 ◽  
Vol 126 (1-2) ◽  
pp. 108-114 ◽  
Author(s):  
Gunilla Blomqvist ◽  
Maria Persson ◽  
Margareta Wallgren ◽  
Per Wallgren ◽  
Jane M. Morrell
Keyword(s):  
Porcine Circovirus Type ◽  
Porcine Circovirus Type 2 ◽  
Porcine Circovirus ◽  
Boar Semen
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