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| Format: | Artículo científico |
| Language: | en |
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Universidade Estadual de Maringá
2024
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| Online Access: | https://www.redalyc.org/articulo.oa?id=303179699042 https://www.redalyc.org/journal/3031/303179699042/ https://www.redalyc.org/journal/3031/303179699042/html/ https://www.redalyc.org/journal/3031/303179699042/303179699042.epub https://www.redalyc.org/journal/3031/303179699042/movil |
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Table of Contents:
- Indirect methods for predicting the body composition of sheep of different sex classes Ivonete Ferreira da Silva Glayciane Costa Gois Mário Adriano Ávila Queiroz Mario Luiz Chizzotti Rafael Torres de Souza Rodrigues Agrociencias neck loin eye area Chemical composition prediction equations The aim was to evaluate the correlation and develop regression equations for the body composition of sheep of different sex classes, obtained by the comparative slaughter method, using the composition of the neck region and loin eye area (LEA). Forty-five sheep of three sex classes (15 intact males, 15 castrated males and 15 females) received three feeding levels (ad libitum or restrictions of 70 or 80% of ad libitum intake). Animals were distributed in a 3×3 factorial arrangement, with 5 repetitions. The LEA showed: positive correlation with empty body weight, fasting body weight, meat, protein, ether extract and water (p < 0.01), for all sex classes; with bones for intact males and females (p < 0.01); with ash content for intact males and a moderate correlation for castrated males (p < 0.01). The neck was correlated with empty body weight, fasting body weight, meat, protein, ether extract, water and energy in all sex classes (p < 0.01); and moderate correlation with bone (r=0.58) and ash (r=0.67) for intact males. Intact males showed higher R² values in their prediction equations in relation to the other sex classes. 2024 artículo científico 1806-2636 https://www.redalyc.org/articulo.oa?id=303179699042 https://www.redalyc.org/journal/3031/303179699042/ https://www.redalyc.org/journal/3031/303179699042/html/ https://www.redalyc.org/journal/3031/303179699042/303179699042.epub https://www.redalyc.org/journal/3031/303179699042/movil 10.4025/actascianimsci.v46i1.64710 en http://www.redalyc.org/revista.oa?id=3031 Acta Scientiarum. Animal Sciences application/pdf Universidade Estadual de Maringá Acta Scientiarum. Animal Sciences (Brasil) Vol.46