Abstract

GOMEZ LOPEZ, Juan Carlos; TOVAR CUEVAS, José Rafael; BERGONZOLI, Gustavo  and  LUCUMI MORENO, Armando. Bayesian prevalence of Staphylococcus aureus in Valle del Cauca, Colombia dairy cows. Ces. Med. Vet. Zootec. [online]. 2021, vol.16, n.3, pp.47-61.  Epub Apr 08, 2022. ISSN 1900-9607.  https://doi.org/10.21615/cesmvz.6432.

Staphylococcus aureus is one of the main microorganisms responsible of subclinical mastitis in dairy cows. To determine the bayesian prevalence of S. aureus of cows in large and small dairy farms located in the northern, central and southern region of the Valle del Cauca province in Colombia. We Followed the National Mastitis Council methodology, 1070 milk samples from 273 cows in 17 dairy farms by means of a multi-stage sampling, were collected during the period 2015-2016. Cultivation was carried out with all the samples. Bayesian inference was used. The prevalence of the pathogen S. aureus in dairy cows in Valle del Cauca is 31,94% and there is a 95% probability that the interval (30,03 - 37,62%). The North, Central and South regions showed prevalence values of 33%, 34% and 24% respectively. Small dairy farms have prevalence, 47%, large dairy farms 17%. The high prevalence found in the cows studied generates a high impact on public health due to possible zoonotic contamination by this pathogen.

Keywords : animals; bayes theorem; mastitis; milk; predominance; public health (source: MeSH).

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