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https://locus.ufv.br//handle/123456789/30311
Tipo: | Artigo |
Título: | Practical procedures to body weight estimation and correction factors applied to Campolina horses |
Autor(es): | Souza, Felipe Amorim Caetano de Teixeira, Glaciane Lopes Fernandes, Tales Jesus Muniz, Fabiana Rezende Cunha, Fabiana Oliveira Meirelles, Sarah Laguna Conceição Muniz, Joel Augusto Moura, Raquel Silva de |
Abstract: | The objective of this study was to evaluate the accuracy of the following six body weight (BW) estimation methods in Campolina (CAM) horses: A - weight tape placed at three different positions on the animal’s thorax; B - Crevat and Quetelet’s formula; C - Hall’s formula; D - Hintz and Griffiths’s table; E - Santos’s table; and F - Cintra’s formula. A total of 380 CAM horses were separated according to sex, age class, and gestational stage and evaluated. To determine their accuracy, weights measured on a scale and weight estimates of the six methods were compared by paired t-test, mean prediction error (MPE), and coefficient of determination (R²), using R software. The predictive capacity of method F was lower in the 6-12 months age class, so this formula is not indicated. The BW was overestimated compared with the actual weight by methods A (with weight tape placed in position 3) and B and underestimated by method C. Methods D and E accurately estimated BW of CAM horses. Correction factors are required to accurately estimate BW in this breed using methods B and C. Method A with the weight tape placed in position 2 is the most accurate for predicting BW, including pregnant female horses, and can, therefore, be considered the most suitable method for estimating BW of CAM horses |
Palavras-chave: | breed equine foal nutrition |
Editor: | Brazilian Journal of Animal Science |
Citação: | Souza, F. A. C.; Teixeira, G. L.; Fernandes, T. J.; Muniz, F. R.; Cunha, F. O.; Meirelles, S. L. C.; Muniz, J. A. and Moura, R. S. 2021. Practical procedures to body weight estimation and correction factors applied to Campolina horses. Revista Brasileira de Zootecnia 50:e20200047 |
Tipo de Acesso: | Creative Commons Attribution License |
Identificador DOI: | https://doi.org/10.37496/rbz5020200047 |
URI: | https://locus.ufv.br//handle/123456789/30311 |
Data do documento: | 23-Set-2021 |
Aparece nas coleções: | Artigos |
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1806-9290-rbz-50-e20200047.pdf | artigo | 349,6 kB | Adobe PDF | Visualizar/Abrir |
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