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| Batista,Pedro H. D.; Almeida,Gledson L. P. de; Pandorfi,Héliton; Melo,Airon A. S. de; Moraes,Alex S.; Guiselini,Cristiane. |
| ABSTRACT The objective of this study was to evaluate the thermal effect on the behavioral and physiological changes of Girolando heifers by means of principal components analysis. The research was conducted in the Agreste region of the state of Pernambuco, Brazil. Three heifers submitted to the continuous grazing system were used. For the determination of the thermal effect on the animals, the variables dry bulb temperature and relative air humidity were recorded, which allowed to determine the temperature and humidity index and the specific enthalpy. The physiological variables monitored were the respiratory rate, rectal temperature and skin temperature. The quantified behavioral indicators were walking, drinking, eating, ruminating and leisure, to... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Principal components; Animal thermal comfort; Animal adaptability. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662019000400303 |
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