Abstract
<p><em>Rhipicephalus (Boophilus) microplus</em> ticks cause significant economic losses to the Colombian cattle sector: reduction in meat and milk production, blood losses and transmission of blood parasites. The degree of infestation depends on the breed, physiological state and nutrition of the animal and on microclimatic characteristics, which affect the tick life cycle. Diverse studies suggest that given the characteristics of intensive silvopastoral systems (ISS), tick loads within these systems are lower. In this study, the tick loads of grazing animals were monitored for five animal groups: three at an ISS and two at traditional farms located on the Valley of Ibague (Tolima). within the ISS, there were greater tick loads in high production cows (P = 0.026) and a positive relationship (P &lt; 0.05) between milk production and tick load in August sampling. Greater tick counts were also observed in the in San Javier (traditional farm) group compared to all other animal groups. We conclude that the dynamics of ticks is a complex phenomenon affected by many factors, whose association determines the observed tick population at any given time.</p>
Published Version
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