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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
2
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pubmed:dateCreated |
1990-3-15
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pubmed:abstractText |
Seroprevalence of Actinobacillus (Haemophilus) pleuropneumoniae serotype-1 infection was evaluated in pigs on 7 farms in Quebec. Commercial cross-bred herds A to G, ranging from 110 to 235 sows and infected with A pleuropneumoniae serotype-1 were selected. Five pigs/litter were selected at random and were identified (group 1). Blood samples were obtained from group-1 pigs at 2 to 4, 14, 28, 42, and 56 days of age. Blood also was obtained from group-1 pigs remaining in the postweaning unit at 70 days of age, and from 20 to 40 sows 1 to 3 times. To determine prevalence of seropositive pigs in all age groups for the entire study period in herds C to G, blood samples were obtained from 20 pigs/age group (group 2) selected at random at 28, 42, and 56 days of age at each visit. Group-1 pigs were included when they reached 28, 42, and 56 days of age. Pigs were serologically monitored in herds A and B for 3 months and in herds C to G for 5 to 6 months. Serologic status of pigs at 2 to 4 days of age was not statistically associated with status at 42 days (P = 0.6293) and at 56 days (P = 0.3098) of age for the same pigs. Therefore, seronegative pigs 2 to 4 days old did not seroconvert earlier than did those with detectable maternal antibodies at 2 to 4 days old. Only about 50% of the 70-day-old pigs were seropositive at 56 days. Seemingly, pigs seroconverted late in the postweaning period.(ABSTRACT TRUNCATED AT 250 WORDS)
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
Jan
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pubmed:issn |
0003-1488
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:day |
15
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pubmed:volume |
196
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
301-6
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:2298655-Actinobacillosis,
pubmed-meshheading:2298655-Actinobacillus,
pubmed-meshheading:2298655-Agglutination Tests,
pubmed-meshheading:2298655-Animals,
pubmed-meshheading:2298655-Antibodies, Bacterial,
pubmed-meshheading:2298655-Prevalence,
pubmed-meshheading:2298655-Quebec,
pubmed-meshheading:2298655-Questionnaires,
pubmed-meshheading:2298655-Swine,
pubmed-meshheading:2298655-Swine Diseases
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pubmed:year |
1990
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pubmed:articleTitle |
Seroprevalence of Actinobacillus (Haemophilus) pleuropneumoniae serotype-1 infection in swine herds in Quebec.
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pubmed:affiliation |
Department of Large Animal Clinical Sciences, College of Veterinary Medicine, University of Minnesota, St. Paul 55108.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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