Análisis de los Cambios Etarios según Sexo en el Borrego de Chiapas

A survey was conducted in order to study changes in body measurements in the Chiapas sheep breed. For this purpose 66 males and 79 females of various ages were measured: body weight, chest girth, knee perimeter, cannon perimeter, coronne perimeter, hock perimeter and ear length. The study reflects a...

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Bibliographic Details
Authors: Parés Casanova, Pere-Miquel; Caballero-Sala, Marta; Perezgrovas Garza, Raúl
Format: Article
Status:Published version
Publication date:2016
Country:España
Institution:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
Repository:Recercat. Dipósit de la Recerca de Catalunya
OAI Identifier:oai:recercat.cat:10459.1/59267
Online Access:https://doi.org/10.15381/rivep.v27i4.12642
http://hdl.handle.net/10459.1/59267
Access Level:Open access
Keyword:Allometry
Sexual dimorphism
Ontogeny
Intraspecific variation
Description
Summary:A survey was conducted in order to study changes in body measurements in the Chiapas sheep breed. For this purpose 66 males and 79 females of various ages were measured: body weight, chest girth, knee perimeter, cannon perimeter, coronne perimeter, hock perimeter and ear length. The study reflects a regional change according to age, which are not isometrical. Body weight and chest girth are the most discriminative variables, which presented identical age regression trajectories for both sexes (F=1.006, p=0.317). Although body weight in adult male (>12 months, n=56) was greater than those of females (n=64) (U=1320, p=0.014), and no differences appeared for chest girth (U=1720, p=0.704), regression trajectories for both traits appeared similar.