Characterization of colostrum from dams of BLV endemic dairy herds
Bovine Leukemia Virus (BLV) is endemic in Argentina, where the individual prevalence is higher than 80% in dairy farms. The aim of this work was to find preliminary evidence to know if the high level of infection of the dam would implicate a higher challenge to her own offspring. We collected 65 set...
| Autores principales: | , , , , |
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| Formato: | info:ar-repo/semantics/artículo |
| Lenguaje: | Inglés |
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Elsevier
2018
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| Materias: | |
| Acceso en línea: | https://www.sciencedirect.com/science/article/pii/S0378113515000905?via%3Dihub http://hdl.handle.net/20.500.12123/3587 http://dx.doi.org/10.1016/j.vetmic.2015.03.001 |
| _version_ | 1855035168416333824 |
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| author | Gutierrez, Gerónimo Lomonaco, Marina Alvarez, Irene Fernandez, Fernando Trono, Karina Gabriela |
| author_browse | Alvarez, Irene Fernandez, Fernando Gutierrez, Gerónimo Lomonaco, Marina Trono, Karina Gabriela |
| author_facet | Gutierrez, Gerónimo Lomonaco, Marina Alvarez, Irene Fernandez, Fernando Trono, Karina Gabriela |
| author_sort | Gutierrez, Gerónimo |
| collection | INTA Digital |
| description | Bovine Leukemia Virus (BLV) is endemic in Argentina, where the individual prevalence is higher than 80% in dairy farms. The aim of this work was to find preliminary evidence to know if the high level of infection of the dam would implicate a higher challenge to her own offspring. We collected 65 sets of samples consisting of dam's blood and colostrum from two heavily infected dairy farms, and investigated the correlation between the dam's blood proviral load and the presence of provirus in colostrum. We also described the dual antibody/provirus profile in the colostrum. Provirus was detected in 69.23% of the colostrum samples, mostly from dams with a high proviral load, 36/45 (80%). Colostrum proviral load was significantly higher in dams with high blood proviral load (p < 0.0001). Provirus was detected in colostrum samples all along the antibody distribution, even in those with a low amount of antibodies. These results show that even when high blood proviral load dams offer higher levels of infected cells to their offspring through colostrum they also offer higher levels of protection of antibodies. On the contrary, low blood proviral load dams also offer infected cells but a poor content of antibodies, suggesting that these animals could play an important role in the epidemiological cycle of transmission. |
| format | info:ar-repo/semantics/artículo |
| id | INTA3587 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2018 |
| publishDateRange | 2018 |
| publishDateSort | 2018 |
| publisher | Elsevier |
| publisherStr | Elsevier |
| record_format | dspace |
| spelling | INTA35872018-10-12T15:52:32Z Characterization of colostrum from dams of BLV endemic dairy herds Gutierrez, Gerónimo Lomonaco, Marina Alvarez, Irene Fernandez, Fernando Trono, Karina Gabriela Bovine Leukaemia Virus Colostrum Proviruses Antibodies Dairy Farms Virus Leucemia Bovina Calostro Provirus Anticuerpos Granjas Lecheras Bovine Leukemia Virus (BLV) is endemic in Argentina, where the individual prevalence is higher than 80% in dairy farms. The aim of this work was to find preliminary evidence to know if the high level of infection of the dam would implicate a higher challenge to her own offspring. We collected 65 sets of samples consisting of dam's blood and colostrum from two heavily infected dairy farms, and investigated the correlation between the dam's blood proviral load and the presence of provirus in colostrum. We also described the dual antibody/provirus profile in the colostrum. Provirus was detected in 69.23% of the colostrum samples, mostly from dams with a high proviral load, 36/45 (80%). Colostrum proviral load was significantly higher in dams with high blood proviral load (p < 0.0001). Provirus was detected in colostrum samples all along the antibody distribution, even in those with a low amount of antibodies. These results show that even when high blood proviral load dams offer higher levels of infected cells to their offspring through colostrum they also offer higher levels of protection of antibodies. On the contrary, low blood proviral load dams also offer infected cells but a poor content of antibodies, suggesting that these animals could play an important role in the epidemiological cycle of transmission. Instituto de Virología Fil: Gutierrez, Gerónimo. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Virología; Argentina Fil: Lomonaco, Marina. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Virología; Argentina Fil: Alvarez, Irene. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Virología; Argentina Fil: Fernandez, Fernando. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Virología; Argentina Fil: Trono, Karina Gabriela. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Virología; Argentina 2018-10-12T15:46:47Z 2018-10-12T15:46:47Z 2015-06 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion https://www.sciencedirect.com/science/article/pii/S0378113515000905?via%3Dihub http://hdl.handle.net/20.500.12123/3587 0378-1135 http://dx.doi.org/10.1016/j.vetmic.2015.03.001 eng info:eu-repo/semantics/restrictedAccess application/pdf Elsevier Veterinary microbiology 177 (3-4) : 366–369. (Junio 2015) |
| spellingShingle | Bovine Leukaemia Virus Colostrum Proviruses Antibodies Dairy Farms Virus Leucemia Bovina Calostro Provirus Anticuerpos Granjas Lecheras Gutierrez, Gerónimo Lomonaco, Marina Alvarez, Irene Fernandez, Fernando Trono, Karina Gabriela Characterization of colostrum from dams of BLV endemic dairy herds |
| title | Characterization of colostrum from dams of BLV endemic dairy herds |
| title_full | Characterization of colostrum from dams of BLV endemic dairy herds |
| title_fullStr | Characterization of colostrum from dams of BLV endemic dairy herds |
| title_full_unstemmed | Characterization of colostrum from dams of BLV endemic dairy herds |
| title_short | Characterization of colostrum from dams of BLV endemic dairy herds |
| title_sort | characterization of colostrum from dams of blv endemic dairy herds |
| topic | Bovine Leukaemia Virus Colostrum Proviruses Antibodies Dairy Farms Virus Leucemia Bovina Calostro Provirus Anticuerpos Granjas Lecheras |
| url | https://www.sciencedirect.com/science/article/pii/S0378113515000905?via%3Dihub http://hdl.handle.net/20.500.12123/3587 http://dx.doi.org/10.1016/j.vetmic.2015.03.001 |
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