Sapajus macrocephalus (machín de cabeza grande) es un primate neotropical que habita en la amazonia sudamericana. Se considera como una especie de preocupación menor, aunque su población está decayendo. Se evaluaron las imágenes ultrasonográficas de S. macrocephalus para describir la ubicación anatómica, morfología, dimensiones y las características ultrasonográficas de los órganos abdominales y perineales. Se muestrearon 31 ejemplares, 18 hembras y 13 machos castrados del Zoológico del Parque Las Leyendas y 3 ejemplares machos enteros del Zoológico El Buen Pastor (Lima, Perú). Se concluye que las características ultrasonográficas, dimensiones y ubicación anatómica de los órganos abdominales de S. macrocephalus son semejantes a los referidos C. apella, C. albifrons; y parecidas a los animales de compañía y humanos. Esta información será de gran utilidad en la iden...

The white machín, Cebus albifrons, is a neotropical primate belonging to the Family Cebidae, Subfamily Cebinae. The aim of this study was to determine the ultrasound characteristics and the dimensions of the abdominal organs of the white-fronted capuchin in captivity. It was used four intact adult male specimens in captivity at the Huachipa Zoo and three captive specimens at the Parque de las Leyendas Board of Trustees Zoo (an adult male castrated, an adult female and a juvenile male), both institutions in the city of Lima, Peru. The specimens fasted for six hours; then physical and chemical restraint was carried out using the immobilization protocol established by each zoo. The Pie Medical 100 Falco Vet® ultrasound equipment with 7.5 MHz multifrequential convex transducer and ESAOTE MyLab One Vet with the 4-9 MHz SC312 microconvex transducer were used. The ultrasound images are displa...

The white machín, Cebus albifrons, is a neotropical primate belonging to the Family Cebidae, Subfamily Cebinae. The aim of this study was to determine the ultrasound characteristics and the dimensions of the abdominal organs of the white-fronted capuchin in captivity. It was used four intact adult male specimens in captivity at the Huachipa Zoo and three captive specimens at the Parque de las Leyendas Board of Trustees Zoo (an adult male castrated, an adult female and a juvenile male), both institutions in the city of Lima, Peru. The specimens fasted for six hours; then physical and chemical restraint was carried out using the immobilization protocol established by each zoo. The Pie Medical 100 Falco Vet® ultrasound equipment with 7.5 MHz multifrequential convex transducer and ESAOTE MyLab One Vet with the 4-9 MHz SC312 microconvex transducer were used. The ultrasound images are displa...