The objective of this work was to understand the grazing behavior of cattle at the Acraquia Cattle Research and Development Center (CIDBA) of the National University of Huancavelica, through wireless sensor networks. To do this, a wireless sensor network device connected to a web application (in charge of managing the information captured by the device) was designed, built and implemented. This system (device and web application) included sensor nodes in each cattle (collar with its respective power sources) and a monitoring station, which allowed collecting real-time data on the location, movements and behavior of the cattle. The information obtained was processed and analyzed to know the movement, grazing time, drinking times and sleeping time of the CIDBA cattle. The following values were found as the general average for the variables under study: displacement = 276 meters, grazing ti...

A fin de evaluar preliminarmente la densidad de fibras (DenF) y conductos (DenC) como nuevos criterios de selección, para la mejora genética de animales dedicados a la producción de fibras en cantidad y calidad, se llevó a cabo el presente trabajo con los objetivos de desarrollar y validar un procedimiento y equipo, al que denominamos FIBER DEN. En la zona del costillas medio (CM) de la piel preparada (rasurada, teñida y lavada) de 32 llamas y 3 l alpacas, se capturaron imágenes digitales con el FIBER DEN las cuales fueron procesadas semi automáticamente mediante un software propietario y se obtuvieron la DenF, DenC y N° de fibras/conductos. También se tomaron muestras de fibras del CM a fin de medir la media de diámetro de fibra (MDF) con el FIBER EC y se pesaron los vellones de cada uno de los animales. Con los datos obtenidos se realizaron análisis de los coeficientes de re...

Improvements in the weight of greasy fleece (GFW) and mean fibre diameter (MED) can favour the income of alpaca producers; however, these variables are directly related, complicating the simultaneous improvement of both characteristics. Therefore, it is necessary to find new selection criteria for the simultaneous improvement of both characteristics. The purpose of the study was to characterize the fibre density (FibDen), density of hair ducts (DenDucts) and the fibre/duct ratio and No. of fibres/ducts (Fib/Duct_R) as possible selection criteria. Likewise, determine the type of relationship between them and with GFW and MFD, and construct and evaluate formal selection indices under scenarios with different available measurements, considering in all cases GFW and MFD duly weighted by their economic weights, as selection objectives. For this, fibre samples and skin images were taken, and t...