Prediction of carcass weight at the age of slaughtering in guinea pigs of the Cieneguilla genotype based on a synthesis of body measurements

Authors

  • Pablo Rubio Arias Universidad Nacional Agraria La Molina, Lima
  • Juan Chávez C. Departamento Académico de Producción Animal, Facultad de Zootecnia, Universidad Nacional Agraria La Molina, Lima
  • Grimaldo Febres Departamento Académico de Estadística e Informática, Universidad Nacional Agraria La Molina, Lima,
  • Hugo Deza C. Universidad Nacional Agraria La Molina, Lima

DOI:

https://doi.org/10.15381/rivep.v29i2.14476

Keywords:

guinea pig, carcass yield, body measurements, selection

Abstract

The objective of the present study was to predict carcass weight (PC) in guinea pigs (Cavia porcellus) at the age of slaughtering (16±2 weeks), considering their biometric measurements. The following measures and weights were taken before and after the slaughter of 150 male guinea pigs of the Cieneguilla genotype: live body weight (PV), body length (LC), head length (LCA), head width (AC), loin length (LL), loin width (AL), chest girth (PT), thigh perimeter (PM), thigh length (LM), arm perimeter (PB), arm length (LB), and rump middle square (CMG), as well as the carcass weight (PC). The data were analyzed to determine the best regression equation and to establish the best predictive linear model of carcass weight. The «Step-Wise Regression» process of the SAS statistical package was used. The combinations of independent variables in the model revealed that the variables PV, PT, AC, and LL give a better explanation of the CP at the benefit age (R2=0.71; Cp-Mallows=1.63).

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Published

2018-05-31

Issue

Vol. 29 No. 2 (2018)

Section

Artículos Primarios

License

Copyright (c) 2018 Pablo Rubio Arias, Juan Chávez C., Grimaldo Febres, Hugo Deza C.

Creative Commons License

This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.

AUTHORS RETAIN THEIR RIGHTS:

a. Authors retain their trade mark rights and patent, and also on any process or procedure described in the article.

b. Authors retain their right to share, copy, distribute, perform and publicly communicate their article (eg, to place their article in an institutional repository or publish it in a book), with an acknowledgment of its initial publication in the Revista de Investigaciones Veterinarias del Perú (RIVEP).

c. Authors retain theirs right to make a subsequent publication of their work, to use the article or any part thereof (eg a compilation of his papers, lecture notes, thesis, or a book), always indicating the source of publication (the originator of the work, journal, volume, number and date).

How to Cite

Arias, P. R., Chávez C., J., Febres, G., & Deza C., H. (2018). Prediction of carcass weight at the age of slaughtering in guinea pigs of the Cieneguilla genotype based on a synthesis of body measurements. Revista De Investigaciones Veterinarias Del Perú, 29(2), 507-513. https://doi.org/10.15381/rivep.v29i2.14476