Document Detail


Frequency and causes of infectious abortion in a dairy herd in Queretaro, Mexico.
MedLine Citation:
PMID:  17955907     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The objective of this study was to determine the frequency of infectious bovine abortion and to identify some of its causes, specifically brucellosis, leptospirosis, bovine viral diarrhea, infectious bovine rhinotracheitis, and neosporosis. The study was carried out in a dairy herd in the state of Queretaro, Mexico, between September 2002 and March 2003. At the beginning of the study, blood samples were taken from a random 33% of the 300 lactating or pregnant cows; antibodies against Leptospira interrogans were the most commonly identified, in 91% of the 99 samples. Blood samples were also taken 14 to 28 d after the 26 subsequent abortions in the herd in the 6-mo study period, as well as from 22 cows that had not aborted within 5 d after the abortions in the other group. Seroconversion was most frequent for L. hardjo, occurring in 8 (67%) of the 12 dams that aborted after the initial serologic sampling and for which paired serum samples were therefore available. Of the 16 collected fetuses, 10 had histologic lesions suggesting infection in various organs, the features correlating with the serologic results for the dams in 7 cases. Thus, the abortions may have been caused by more than 1 infectious agent.
Authors:
H Patricia Escamilla; M José Juan Martínez; C Mario Medina; S Elizabeth Morales
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Canadian journal of veterinary research = Revue canadienne de recherche vétérinaire     Volume:  71     ISSN:  0830-9000     ISO Abbreviation:  Can. J. Vet. Res.     Publication Date:  2007 Oct 
Date Detail:
Created Date:  2007-10-24     Completed Date:  2007-11-26     Revised Date:  2013-06-06    
Medline Journal Info:
Nlm Unique ID:  8607793     Medline TA:  Can J Vet Res     Country:  Canada    
Other Details:
Languages:  eng     Pagination:  314-7     Citation Subset:  IM    
Affiliation:
Dirección General de Inocuidad Agroalimentaria, Acuícola y Pesquera, Municipio Libre 377 Piso 6-A, Santa Cruz Atoyac, México, DF 03310.
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MeSH Terms
Descriptor/Qualifier:
Abortion, Veterinary / diagnosis,  epidemiology*,  microbiology*
Animals
Antibodies, Bacterial / blood*
Antibodies, Viral / blood
Cattle
Cattle Diseases / epidemiology*,  microbiology
Diarrhea Viruses, Bovine Viral / immunology
Female
Fetal Death / diagnosis,  epidemiology,  microbiology,  veterinary*
Herpesvirus 1, Bovine / immunology
Leptospira / immunology
Leptospira interrogans / immunology
Leptospirosis / complications,  epidemiology,  microbiology,  veterinary
Mexico
Pregnancy
Pregnancy Complications, Infectious / epidemiology,  microbiology,  veterinary*
Chemical
Reg. No./Substance:
0/Antibodies, Bacterial; 0/Antibodies, Viral
Comments/Corrections

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