Regression model analysis for prediction of body weight from body measurements in female batur sheep of Banjarnegara district, Indonesia

Ibrahim, Alek and Artama, Wayan Tunas and Budisatria, I Gede Suparta and Yuniawan, Ridwan and Atmoko, Bayu Andri and Widayanti, Rini (2021) Regression model analysis for prediction of body weight from body measurements in female batur sheep of Banjarnegara district, Indonesia. Biodiversitas, 22 (7). 2723 – 2730. ISSN 1412033X

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Abstract

Bodyweight is an important aspect of livestock management. The present study was undertaken to estimate correlation coefficients between biometric traits and identify best predictor of body weight in female Batur sheep from body measurements. Data on body weight and body measurements (body length: BL, chest girth: CG and withers height: WH) were collected from 73 female Batur sheep in Batur Village, Banjarnegara District, Central Java Province, Indonesia. Batur sheep were grouped into 3 categories based on their age, namely groups <1.5 years, 1.5-2.5 years and >2.5 years. The data were analyzed using simple, multiple, and automatic linear regression methods using the SPSS computer software version 25 platform. The correlation coefficient, coefficient determination, adjusted coefficient determination, residual standard error, Akaike information criterion, Bayesian information criterion, and Akaike information criterion corrected were used to determine the best regression formula for the prediction of BW. The average BW (kg), BL (cm), CG (cm), and WH (cm) of 49.27, 63.11, 91.41, and 56.82, respectively was observed in the present study. The correlation coefficients of 0.433, 0.866, and 0.369 for BW with BL, CG, and WH were observed in the present study. The best prediction of BW using two predictors (BL and GC) was BW =-56.522 + 0.509BL + 0.843CG, followed by using three predictors (BL, CG, and WH) was BW =-57.897+ 0.505BL + 0.839CG + 0.034WH, and using the only one predictor (CG) was BW =-28.443 + 0.905CG. The study revealed that CG and its combination with other linear body measurements can effectively define the body weight in Batur sheep. However, the highest R2 of 0.782 was observed when CG and BL were used as predictors. © 2021, Society for Indonesian Biodiversity. All rights reserved.

Item Type: Article
Additional Information: Cited by: 22; All Open Access, Gold Open Access
Uncontrolled Keywords: Batur sheep, body size, linear regression, phenotypic characteristics, prediction model
Subjects: S Agriculture > SF Animal culture
Divisions: Faculty of Veterinary Medicine
Depositing User: Sri JUNANDI
Date Deposited: 14 Oct 2024 04:50
Last Modified: 14 Oct 2024 04:50
URI: https://ir.lib.ugm.ac.id/id/eprint/5673

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