Results 161 to 170 of about 5,487 (206)

Interepizootic survival of porcine parvovirus

Journal of the American Veterinary Medical Association, 1986
SUMMARY Porcine parvovirus (ppv) was transmitted by direct contact between experimentally infected and susceptible pigs at 1 and 2 weeks, but not at 4, 8, 16, or 25 weeks, after experimental infection. In contrast, ppv was found to remain infectious for at least 14 weeks in uncleaned rooms previously vacated by experimentally infected pigs.
W L, Mengeling, P S, Paul
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Efficacy of porcine parvovirus vaccines

Veterinary Record, 1986
Three inactivated porcine parvovirus vaccines were tested for efficacy in 66 susceptible gilts. The gilts were challenged with virulent virus on the 40th day of gestation. All the vaccines provided excellent protection against fetal mortality despite insignificant serological responses to one of them.
K R, Edwards, M A, Emmerson, P R, Luff, D E, Wells, J C, Muskett, A E, Wrathall, C, Richardson, B N, Parker, D H, Thornton   +8 more
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OBSERVATIONS ON THE EPIDEMIOLOGY OF PORCINE PARVOVIRUS

Australian Veterinary Journal, 1976
SummaryEvidence presented suggests that porcine parvovirus is highly stable and infective. Introduction of virus to susceptible herds results in 100% infection rate within the following 3 months. Active immunity is associated with high persistent levels of haemagglutination‐inhibitating (HI) antibody (> 256), piglets suckling immune sows acquiring ...
R. H. JOHNSON, C. DONALDSON‐WOOD, HAN Soo JOD, U. ALLENDER   +3 more
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Tissue tropisms of porcine parvovirus in swine

Archives of Virology, 1993
Late-term gestation swine fetuses, similar to adult animals, are able to effectively mount immune response and survive porcine parvovirus (PPV) infection. An exception to this is the Kresse strain of PPV, which causes fetal death in late-term gestation swine fetuses.
K, Oraveerakul, C S, Choi, T W, Molitor
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Observations on the pathogenesis of porcine parvovirus infection

Archives of Virology, 1976
Differences in the pathogenesis of porcine parvovirus (PPV) were shown when pregnant gilts were infected by the oral and intramuscular (i.m.) routes. By the oral route, PPV took 23-32 days to cross the placenta following infection of the dam, as compared to 15 days by the i.m. route, Successful transplacental infection occurred following oral infection
H S, Joo, C R, Donaldson-Wood, R H, Johnson   +2 more
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Farm studies of porcine parvovirus infection

Journal of the American Veterinary Medical Association, 1983
SUMMARY Epizootics of reproductive failure associated with porcine parvovirus infection were investigated on 38 farms. Mummification was common to all epizootics. The mean number of mummified fetuses per affected litter was 3.1. Mean number of pigs born alive for gilts and sows farrowing litters with mummified fetuses was 5.0, but for sows without ...
R S, Cutler, T W, Molitor, A D, Leman, R E, Werdin   +3 more
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Genital infection of pigs with porcine parvovirus

Journal of Comparative Pathology, 1974
Abstract Experimental infection of sows with porcine parvovirus (strain 59e 63 ) is described. The virus was added to the semen immediately prior to artificial insemination and the sows were killed 30 d. later. Three out of 6 infected sows contained foetuses at 30 d. Of the 3 uninfected control sows 2 were pregnant.
M H, Lucas, S F, Cartwright, A E, Wrathall   +2 more
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An economic assessment of porcine parvovirus vaccination

Australian Veterinary Journal, 1993
SUMMARY A decision analysis model was designed to evaluate the cost effectiveness of a vaccination program for preventing endemic or epidemic porcine parvovirus (PPV) Induced reproductive failure in a 100‐sow pig herd. The results showed that the cost of vaccination was less than the cost incurred by continuing endemic PPV infection, or the cost of a ...
C R, Parke, G W, Burgess
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Porcine parvovirus infection in a commercial piggery

New Zealand Veterinary Journal, 1986
Abstract Extract Madam:– We have recently been involved in a consultative role with a 60-sow commercial piggery. Over the year preceding the incident recorded here, this unit had approximately doubled in size by the purchase of improved large white gilts.
Hampson, D.J., Moller, K., Robertson, I.D., Fu, Z.F.   +3 more
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Role of the rat in the transmission of porcine parvovirus

American Journal of Veterinary Research, 1982
SUMMARY Rats experimentally inoculated with porcine parvovirus (ppv) shed virus in excreta from 3 to 21 days. Rats inoculated subcutaneously with ppv responded serologically with hemagglutination-inhibition titers (512-1,024). The ppv antigen was readily detected in lung and spleen 2 and 3 days after rats were inoculated and in liver and intestine, 4 ...
R, Cutler, T W, Molitor, T E, Sauber, A D, Leman   +3 more
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