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Use of discriminant analysis method to identify sex by morphological traits in adult rabbits in Nigeria Cover

Use of discriminant analysis method to identify sex by morphological traits in adult rabbits in Nigeria

Open Access
|Dec 2020

Abstract

Sex assessment plays an important role in rabbit production, but it can be very difficult to determine, especially in the young ones. In this study, canonical discriminant analysis was used to determine which of the morphological traits are the most effective in sex determination in rabbits. Data were taken on 160 rabbits and used for this study on body weight (BWG), body length (BDL), ear length (EAL), heart girth (HTG), and abdominal circumference (ABC). The results from the univariate analysis show manifestation of sexual dimorphism with higher values observed in females for all the morphometric measurements. The canonical discriminant analysis revealed that ABC was the most significant morphological trait as a discriminating variable between the sexes in rabbits. The discriminant function, D = – 8.673 + 1.865 BWG + 0.013 BDL + 0.291 EAL – 0.318 HTG + 0.463 ABC, obtained correctly classified 72.5% of individuals of rabbits. In conclusion, the abdominal circumference of the rabbits in a population could be an important tool for the conservation and improvement of the rabbits’ population.

DOI: https://doi.org/10.2478/ats-2020-0018 | Journal eISSN: 1801-0571 | Journal ISSN: 0231-5742
Language: English
Page range: 183 - 186
Submitted on: Apr 28, 2020
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Accepted on: Nov 27, 2020
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Published on: Dec 17, 2020
In partnership with: Paradigm Publishing Services
Publication frequency: 1 issue per year
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© 2020 Emmanuel Abayomi Rotimi, Maryam Hassana Ati, published by Mendel University in Brno
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.