Resumen

NAJERA-LUNA, Juan Abel et al. Skidding productivity with animals in the forests of Durango, Mexico. Madera bosques [online]. 2024, vol.30, n.3, e3032531.  Epub 08-Abr-2025. ISSN 2448-7597.  https://doi.org/10.21829/myb.2024.3032531.

Currently, the use of animal power in forestry operations is considered more of a tradition than a technological necessity, and in some forests of Durango, Mexico, it is possible to find areas where skidding is carried out with the help of animals; however, the productivity of this operation is unknown to consider it a profitable technological option in modern forestry engineering. Therefore, the objective of this study was to determine the effect of log diameter and distance on skidding yield with animal traction. For this purpose, 245 skidding cycles were timed, the volume of the logs was obtained by direct measurement of the diameters and length; in addition, the skidding time and distances were recorded. These variables were divided into three diameter classes and three classes of distance. The yield of the operation was obtained by relating the volume of the logs with the total time of skidding. The results showed a productivity of 8.49 m3h-1 to 27.94 m3h-1 influenced by the diameter and the skidding distance; 83% of the skidded volume was found dispersed within a radius of 40 meters and on average 2.13 minutes are required to complete a work cycle, but at greater distance, twice time is required, which causes the yield to decrease. It is recommended to carry out skidding at distances no greater than 50 meters to maintain good productivity and reduce physical effort and risk of injury to animals and operators.

Palabras llave : forest harvesting; work cycle; time study; animal power; yield; volume.

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