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Neospora caninum - Associated Abortions in Slovak Dairy Farm
BACKGROUND: Neospora caninum is considered one of the major causes of repeated abortions in livestock. This study aimed to determine the seropositivity to N. caninum using indirect ELISA and the influence of the infection on the occurrence of abortions in selected dairy herd in Slovakia. METHOD: Blo...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Tehran University of Medical Sciences
2015
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4403546/ https://www.ncbi.nlm.nih.gov/pubmed/25904951 |
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author | ŠPILOVSKÁ, Silvia REITEROVÁ, Katarína ANTOLOVÁ, Daniela |
author_facet | ŠPILOVSKÁ, Silvia REITEROVÁ, Katarína ANTOLOVÁ, Daniela |
author_sort | ŠPILOVSKÁ, Silvia |
collection | PubMed |
description | BACKGROUND: Neospora caninum is considered one of the major causes of repeated abortions in livestock. This study aimed to determine the seropositivity to N. caninum using indirect ELISA and the influence of the infection on the occurrence of abortions in selected dairy herd in Slovakia. METHOD: Blood samples were obtained from 490 cattle over a period of two years and were tested for N. caninum antibodies using indirect ELISA. RESULTS: The presence of specific antibodies in the herd was detected in 118 (24.1%) cows. According to selected groups; 117 (41.0%) cows with a history of abortion, 65 (43.3%) heifers and 223 (2.2%) cows without abortions were tested positive to Neospora. Vertical transmission of N. caninum dominated in examined herd and the relative risk (RR) of dam-daughter seropositivity in progenies of seropositive mothers was 2.1 times higher than in progenies of seronegative dams. Molecular analyses of aborted foetuses of seropositive mothers showed the presence of Neospora DNA. However, 23 (28.1%) of heifers born to seronegative cows were seropositive, indicating also the postnatal transmission of the infection from the environment. CONCLUSION: Study revealed significant correlation between the presence of specific antibodies and the occurrence of abortions, the risk of abortion in seropositive animals was 3.8 times higher than in seronegative ones. Incorrect farm management contributed to spread and circulation of neosporosis in entire dairy herd what could significantly impair the reproduction and economic parameters of breeding. |
format | Online Article Text |
id | pubmed-4403546 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2015 |
publisher | Tehran University of Medical Sciences |
record_format | MEDLINE/PubMed |
spelling | pubmed-44035462015-04-22 Neospora caninum - Associated Abortions in Slovak Dairy Farm ŠPILOVSKÁ, Silvia REITEROVÁ, Katarína ANTOLOVÁ, Daniela Iran J Parasitol Original Article BACKGROUND: Neospora caninum is considered one of the major causes of repeated abortions in livestock. This study aimed to determine the seropositivity to N. caninum using indirect ELISA and the influence of the infection on the occurrence of abortions in selected dairy herd in Slovakia. METHOD: Blood samples were obtained from 490 cattle over a period of two years and were tested for N. caninum antibodies using indirect ELISA. RESULTS: The presence of specific antibodies in the herd was detected in 118 (24.1%) cows. According to selected groups; 117 (41.0%) cows with a history of abortion, 65 (43.3%) heifers and 223 (2.2%) cows without abortions were tested positive to Neospora. Vertical transmission of N. caninum dominated in examined herd and the relative risk (RR) of dam-daughter seropositivity in progenies of seropositive mothers was 2.1 times higher than in progenies of seronegative dams. Molecular analyses of aborted foetuses of seropositive mothers showed the presence of Neospora DNA. However, 23 (28.1%) of heifers born to seronegative cows were seropositive, indicating also the postnatal transmission of the infection from the environment. CONCLUSION: Study revealed significant correlation between the presence of specific antibodies and the occurrence of abortions, the risk of abortion in seropositive animals was 3.8 times higher than in seronegative ones. Incorrect farm management contributed to spread and circulation of neosporosis in entire dairy herd what could significantly impair the reproduction and economic parameters of breeding. Tehran University of Medical Sciences 2015 /pmc/articles/PMC4403546/ /pubmed/25904951 Text en Copyright© Iranian Society of Parasitology & Tehran University of Medical Sciences This work is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported License which allows users to read, copy, distribute and make derivative works for non-commercial purposes from the material, as long as the author of the original work is cited properly. |
spellingShingle | Original Article ŠPILOVSKÁ, Silvia REITEROVÁ, Katarína ANTOLOVÁ, Daniela Neospora caninum - Associated Abortions in Slovak Dairy Farm |
title | Neospora caninum - Associated Abortions in Slovak Dairy Farm |
title_full | Neospora caninum - Associated Abortions in Slovak Dairy Farm |
title_fullStr | Neospora caninum - Associated Abortions in Slovak Dairy Farm |
title_full_unstemmed | Neospora caninum - Associated Abortions in Slovak Dairy Farm |
title_short | Neospora caninum - Associated Abortions in Slovak Dairy Farm |
title_sort | neospora caninum - associated abortions in slovak dairy farm |
topic | Original Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4403546/ https://www.ncbi.nlm.nih.gov/pubmed/25904951 |
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