Factors affecting the performance of Pantaneiro horses.

This study aimed to assess the physical performance of Pantaneiro horses with and without equine infectious anemia (EIA) under functional conditions of cattle management. The horses were subjected to a performance test and split into two groups according to a completely randomized design: animals were chosen from populations testing positive and negative for EIA. Performance was measured as a function of a data envelopment analysis (DEA) model considering four outputs and one unitary input. The output measures were the distance achieved in the performance test, hematocrit as a weighted average over the test duration, respiratory rate as weighted average over the test duration, and the level of lactic acid at the test termination. Weights for the hematocrit and the respiratory rate output variables were determined by means of factor analysis. The performance score was a weighted average of the output variables with the weights defined by the averages of the optimum individual multipliers in the DEA analysis. Contextual variables of interest were age, horse weight, room temperature, and corporal temperature. Only groups and room temperature were statistically significant effects, as indicated by a bootstrap analysis. The performance of group positive for EIA is significantly lower than that of the group negative for EIA and room temperature has a negative effect.

Bibliographic Details

Main Authors:	SOUZA, G. da S. e, GOMES, E. G., SANTOS, S. A., REZENDE, A. S. C. de, ANDRADE, D. R. de F., NOGUEIRA, M. F., TRIGO, P., ABREU, U. G. P. de
Other Authors:	GERALDO DA SILVA E SOUZA, SGI; ELIANE GONCALVES GOMES, SGI; SANDRA APARECIDA SANTOS, CPAP; Adalgiza Souza Carneiro de Rezende, Universidade Federal de Minas Gerais/Escola de Veterinária, Departamento de Zootecnia; Débora Roque de Freitas Andrade, Universidade Federal de Minas Gerais/Programa de Pós-graduação em Zootecnia; MARCIA FURLAN NOGUEIRA T DE LIMA, CPAP; Pablo Trigo, Universidad Nacional de La Plata/Facultad de Ciencias Veterinarias; URBANO GOMES PINTO DE ABREU, CPAP.
Format:	Artigo de periódico biblioteca
Language:	English eng
Published:	2018-04-20
Subjects:	Data envelopment analysis, Analysis of covariance, Anemia infecciosa eqüina, Delineamento experimental, Método estatístico, Equine infectious anemia, Experimental design, Multivariate analysis,
Online Access:	http://www.alice.cnptia.embrapa.br/alice/handle/doc/1090780
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