Risk factors associated with viral infections (BoHV-1 and BVDV) in crossbreed dairy herds

A study of 264 samples from crossbreed dairy herds in Uberlândia, MG, Brazil, analyzing managerial practices as risk factors for viral infections associated with reproductive failures. Neutralizing antibodies were detected for BoHV-1 in 62.5% of samples, for BVDV in 45.1%, and for both viruses in 31.4%. The research was authored by Victório Barbosa and is available via Open Access.

Use Cases

• Modeling the association between herd size and BoHV-1 infection risk based on the finding that herds with more than 100 cows were a risk factor.
• Analyzing the impact of milking practices on viral co-infection based on the 3.36-fold increased chance of infection with mechanical milking.
• Evaluating the protective effect of artificial insemination based on its association with a 56% reduced risk of simultaneous BoHV-1 and BVDV infection.
• Identifying risk profiles for BVDV infection in dual-purpose herds based on factors like absence of quarantine and picket calving mentioned in the description.

Strengths

• Study reports specific antibody detection rates: 62.5% for BoHV-1, 45.1% for BVDV, and 31.4% for co-infection in 264 samples.
• Identifies concrete, quantified risk factors, such as a 3.36-fold increased infection chance with mechanical milking and a 56% risk reduction with artificial insemination.
• Focuses on a specific context: extensively reared, unvaccinated dairy herds with a history of reproductive disease in Uberlândia, MG.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Last update date is unknown; freshness unverified.

Provenance

Source

Victório Barbosa

Collection Method

Likely contains serological testing and survey data from dairy herds, as described in the study abstract.

Geography

Uberlândia, Minas Gerais, Brazil