Morphometric Study and Body Weight Prediction Equations in Llamas (Lama glama) Ch'aku and Q'ara

Edwin O.V.; Faustino J.H.; Bilo C.C.; Uberto O.D.; Martha T.I.; Luis O.M.; Victor Z.H.; Buenaventura O.V. · International Journal of Morphology (2022) · DOI: 10.4067/s0717-95022022000501247

Resumen

The study used a population of 180 llamas of both sexes (males and females) classified by age (milk teeth; two teeth and four teeth). Body weight data and the following morphometric measurements were recorded: Head: Head length (CL); head width (ACa) and ear length (LO). On the neck: Neck length (LCU); anterior neck circumference (PCuA) and posterior neck circumference ( PCuP). On the trunk and limbs: Height at withers (AC); height at rump (AGRU), sternal dorsal diameter (DDE), thoracic perimeter (PT), body length (LOCU), length from withers to rump (LCG), rump length (LGRU), anterior canine perimeter (PCA); posterior canine perimeter (PCP). The data were processed using R statistical software. It was concluded that conformation traits in Ch'aku and Q'ara llamas (Lama glama) are influenced by age, sex and breed. Simple and multiple regression models for body weight prediction were significant.

Instituciones: Universidad Nacional del Altiplano; Universidad Nacional Amazónica de Madre de Dios