Molecular detection of Bluetongue Virus (BTV) and Bovine Leukemia Virus (BLV) in uterine biopsies of dairy cows with or without reproductive problems
Reproductive performance of dairy cows has a direct impact on herd productivity. Infectious agents, such as Bluetongue Virus (BTV) and Bovine Leukemia Virus (BLV), are associated with reproductive failure. However, it remains unknown if these viruses are present in the uterus and cause gestational l...
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| Format: | Article |
| Language: | English |
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Universidade Estadual de Londrina
2016-10-01
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| Series: | Semina: Ciências Agrárias |
| Subjects: | |
| Online Access: | http://www.uel.br/revistas/uel/index.php/semagrarias/article/view/23067 |
| _version_ | 1819071053997015040 |
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| author | Juliana Marques Bicalho Antônio Augusto Fonseca Júnior Cairo Henrique Sousa de Oliveira Cláudia Fideles Resende Telissa da Cunha Kassar Grazielle Cossenzo Florentino Galinari André Penido Oliveira Livia de Lima Orzil Jenner Karlisson Pimenta dos Reis Rômulo Cerqueira Leite |
| author_facet | Juliana Marques Bicalho Antônio Augusto Fonseca Júnior Cairo Henrique Sousa de Oliveira Cláudia Fideles Resende Telissa da Cunha Kassar Grazielle Cossenzo Florentino Galinari André Penido Oliveira Livia de Lima Orzil Jenner Karlisson Pimenta dos Reis Rômulo Cerqueira Leite |
| author_sort | Juliana Marques Bicalho |
| collection | DOAJ |
| description | Reproductive performance of dairy cows has a direct impact on herd productivity. Infectious agents, such as Bluetongue Virus (BTV) and Bovine Leukemia Virus (BLV), are associated with reproductive failure. However, it remains unknown if these viruses are present in the uterus and cause gestational loss. This study used molecular methods to assess if BTV and BLV can be detected in the uterus of serologically positive dairy cows with a record of abortions, stillbirths and repeat breeding (n=23) and without a record of reproductive problems (n =23). The cows came from three dairy herds of the state of Minas Gerais, Brazil. BTV was not detected in any of the uterine biopsies. Proviral DNA of BLV was detected in 54.5 % of the seropositive cows, but positivity for BLV in the uterus was not associated with the existence of reproductive problems. In conclusion, this study shows that BLV, but not BTV, is present in the uterus of seropositive cows, regardless of reproductive performance. |
| first_indexed | 2024-12-21T17:15:43Z |
| format | Article |
| id | doaj.art-5baef8b5e5e54901b0e116b02fa9f41a |
| institution | Directory Open Access Journal |
| issn | 1676-546X 1679-0359 |
| language | English |
| last_indexed | 2024-12-21T17:15:43Z |
| publishDate | 2016-10-01 |
| publisher | Universidade Estadual de Londrina |
| record_format | Article |
| series | Semina: Ciências Agrárias |
| spelling | doaj.art-5baef8b5e5e54901b0e116b02fa9f41a2022-12-21T18:56:18ZengUniversidade Estadual de LondrinaSemina: Ciências Agrárias1676-546X1679-03592016-10-013753125313210.5433/1679-0359.2016v37n5p312514525Molecular detection of Bluetongue Virus (BTV) and Bovine Leukemia Virus (BLV) in uterine biopsies of dairy cows with or without reproductive problemsJuliana Marques Bicalho0Antônio Augusto Fonseca Júnior1Cairo Henrique Sousa de Oliveira2Cláudia Fideles Resende3Telissa da Cunha Kassar4Grazielle Cossenzo Florentino Galinari5André Penido Oliveira6Livia de Lima Orzil7Jenner Karlisson Pimenta dos Reis8Rômulo Cerqueira Leite9Uiversidade Federal de Minas GeraisLaboratório Nacional Agropecuário de Minas GeraisUniversidade Federal de Minas GeraisUniversidade Federal de Minas GeraisUniversidade Federal de Minas GeraisUniversidade Federal de Minas GeraisEmpresa de Pesquisa Agropecuária de Minas GeraisLaboratório Nacional Agropecuário de Minas GeraisUniversidade Federal de Minas GeraisUniversidade Federal de Minas GeraisReproductive performance of dairy cows has a direct impact on herd productivity. Infectious agents, such as Bluetongue Virus (BTV) and Bovine Leukemia Virus (BLV), are associated with reproductive failure. However, it remains unknown if these viruses are present in the uterus and cause gestational loss. This study used molecular methods to assess if BTV and BLV can be detected in the uterus of serologically positive dairy cows with a record of abortions, stillbirths and repeat breeding (n=23) and without a record of reproductive problems (n =23). The cows came from three dairy herds of the state of Minas Gerais, Brazil. BTV was not detected in any of the uterine biopsies. Proviral DNA of BLV was detected in 54.5 % of the seropositive cows, but positivity for BLV in the uterus was not associated with the existence of reproductive problems. In conclusion, this study shows that BLV, but not BTV, is present in the uterus of seropositive cows, regardless of reproductive performance.http://www.uel.br/revistas/uel/index.php/semagrarias/article/view/23067BovinosReproduçãoÚteroBTVBLV. |
| spellingShingle | Juliana Marques Bicalho Antônio Augusto Fonseca Júnior Cairo Henrique Sousa de Oliveira Cláudia Fideles Resende Telissa da Cunha Kassar Grazielle Cossenzo Florentino Galinari André Penido Oliveira Livia de Lima Orzil Jenner Karlisson Pimenta dos Reis Rômulo Cerqueira Leite Molecular detection of Bluetongue Virus (BTV) and Bovine Leukemia Virus (BLV) in uterine biopsies of dairy cows with or without reproductive problems Semina: Ciências Agrárias Bovinos Reprodução Útero BTV BLV. |
| title | Molecular detection of Bluetongue Virus (BTV) and Bovine Leukemia Virus (BLV) in uterine biopsies of dairy cows with or without reproductive problems |
| title_full | Molecular detection of Bluetongue Virus (BTV) and Bovine Leukemia Virus (BLV) in uterine biopsies of dairy cows with or without reproductive problems |
| title_fullStr | Molecular detection of Bluetongue Virus (BTV) and Bovine Leukemia Virus (BLV) in uterine biopsies of dairy cows with or without reproductive problems |
| title_full_unstemmed | Molecular detection of Bluetongue Virus (BTV) and Bovine Leukemia Virus (BLV) in uterine biopsies of dairy cows with or without reproductive problems |
| title_short | Molecular detection of Bluetongue Virus (BTV) and Bovine Leukemia Virus (BLV) in uterine biopsies of dairy cows with or without reproductive problems |
| title_sort | molecular detection of bluetongue virus btv and bovine leukemia virus blv in uterine biopsies of dairy cows with or without reproductive problems |
| topic | Bovinos Reprodução Útero BTV BLV. |
| url | http://www.uel.br/revistas/uel/index.php/semagrarias/article/view/23067 |
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