bachelorThesis
Prevalencia de PRRS granjas porcinas comerciales del cantón Piñas
Fecha
2023-05-10Autor
Criollo Burguan, Viviana Rosibel
Sigua Vizhco, Yessenia Paola
Institución
Resumen
Porcine reproductive and respiratory syndrome (PRRS) is a viral disease of great economic
importance in global pig production, as it causes severe reproductive failure and respiratory
problems in pigs of all ages, particularly in piglets, which triggers an increase in mortality and an
affectation of productive parameters in general. This study aimed to determine the prevalence of
PRRS in the Piñas canton, El Oro province, to understand the impact of the disease on local pig
production. The study included 71 farms spread over 8 parishes; oral fluid (FO) samples were
taken from the population according to strata, including breeding herd, piglets, and fattening. The
samples were analyzed using ELISA IDEXX PRRS Oral Fluids Ab Kit (IDEXX Laboratories) at
the microbiology laboratory of the Faculty of Agricultural Sciences of the University of Cuenca.
The results showed a general prevalence of 60.74% at the level of the Piñas canton; the parishes
with the highest prevalence were: Piñas Grande (83.33%) and Saracay (70.06%); the parishes
with the lowest prevalence were: Piedras (40%) and San Roque (25%), while Capiro had no
positive cases. The risk factors associated with the presence of the disease were also
investigated, through the application of a structured survey; resulting in six factors: commercial
purpose, number of sites, the origin of semen, the provenance of replacements, quarantine, and
management of delivery waste; were related to the PRRS presentation.