Evaluation of Relationships Between Some Growth Traits Measured at Birth and Weaning in South African Non-Descript Goat Kids using Canonical Correlation Analysis
- 1 University of Limpopo, South Africa
Abstract
The study was conducted to assess the association among 6 different growth traits viz; X set- Birth Weight (BW), Heart Girth (HG), Rump Height (RH), Sternum Height (SH), Body Length (BL), Withers Height (WH), assessed at birth and viz; Y Set- Heart Girth (HG_3), Body Length (BL_3), Rump Height (RH_3), Weaning Weight (WW), Withers Height (WH_3), Sternum Height (SH_3) at weaning Measured in fifty (n = 50) non-descript goat kids. Pearson’s correlation and canonical correlation analysis were employed, outcome of Pearson’s highlighted that BW had a positive highly statistical correlation with WW (r = 0.85**), WH_3 (r = 0.61**) and SH_3 (r = 0.83**) at P < 0.01. Results of canonical correlation showed an estimated canonical correlation coefficient (r = 0.881) that was significant among the first pair of canonical variables (P < 0.01). The results indicated that WH and HG had a greater contribution to the explanatory capacity of canonical correlation estimation at birth while BL_3 and RH_3 contributed mostly at weaning of non-descript goats. The findings of the study suggest that the heart girth and withers height might be used at birth as criteria for genetic improvement in non-descript goat kid’s selection.
DOI: https://doi.org/10.3844/ajavsp.2021.139.143
Copyright: © 2021 Kwena Mokoena and Thobela Louis Tyasi. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
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Keywords
- Birth Weight
- Canonical Weights
- Canonical Variable
- Canonical Correlation Coefficient