NDLI: Mycobacterium avium subspecies paratuberculosis and bovine leukemia virus seroprevalence and associated risk factors in dairy herds in Minas Gerais state, Brazil

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Mycobacterium avium subspecies paratuberculosis and bovine leukemia virus seroprevalence and associated risk factors in dairy herds in Minas Gerais state, Brazil

Content Provider	Scilit
Author	Souza, M. A. Silva, B. A. Nascimento, C. F. Reis, I. J. Reis, M. P. Filho, H. Júnior Azevedo, A. L. Castro, J. R. Lima, A. M. C.
Copyright Year	2021
Description	Paratuberculosis (PTB) or Johne’s disease is an infection characterized by chronic granulomatous enteritis caused by Mycobacterium avium subsp. paratuberculosis (MAP), which affects cattle, sheep, goats and wild ruminants $(^{Fecteau, 2017}$). Enzootic bovine leukosis EBL is caused by an RNA virus of the Retroviridae family, the bovine leukemia virus (BLV). Considering the economic impact of PTB and EBL and the importance of an epidemiological analysis to support prophylactic measures, our objective here was to conduct a seroepidemiological study of PTB and EBL in cattle herds in the largest dairy basin in the state of Minas Gerais, Brazil. This research was approved by the Ethics Committee on Animal Use of the University Center of Patos de Minas (UNIPAM), under Protocol no. 54/17. The study was carried out in the municipality of Lagoa Formosa, located in the region of Alto Paranaíba, state of Minas Gerais, Brazil. To determine the sample size, the prevalence estimation method was used on a simple random sample. Estimated prevalence was 75.8% for paratuberculosis (Fernández-Silva et al., 2014) and 80.89% for leukosis $(^{Ambrósio, 2015}$). Thus, for the sample size an expected prevalence of 81%was adopted with a 95% confidence level and a statistical error of 5%, indicating a minimum total sample size of 236 samples.
Related Links	http://www.scielo.br/pdf/abmvz/v73n2/0102-0935-abmvz-73-02-508.pdf
Ending Page	512
Page Count	5
Starting Page	508
ISSN	01020935
e-ISSN	01020935
DOI	10.1590/1678-4162-11899
Journal	Arquivo Brasileiro de Medicina Veterinária E Zootecnia
Issue Number	2
Volume Number	73
Language	English
Publisher	FapUNIFESP (SciELO)
Publisher Date	2021-03-01
Access Restriction	Open
Subject Keyword	Arquivo Brasileiro de Medicina Veterinária E Zootecnia Veterinary Sciences
Content Type	Text
Resource Type	Article
Subject	Veterinary

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