Data/hora: 11/06/2024 07:07:04

Provedor de dados: | 70
País: | Brazil
Título: | Thermal efficiency of individual shelters for girolando calves in brazilian semi-arid regions
Autores: | Almeida,Gledson L. P. de; Pandorfi,Héliton; Baptista,Fátima; Guiselini,Cristiane; Barnabé,Janice M. C.
Data: | 2016-02-01
Ano: | 2016
Palavras-chave: | Ambience; Dairy cattle; Roofing materials; Thermography.
Resumo: | ABSTRACT The objective of this research was to evaluate the thermal efficiency of roofs used on individual shelters during milk-feeding stage of Girolando calves. The research was conducted at a farm located in a dry region of Pernambuco state, Brazil. The experimental design was completely randomized, with 27 Holstein × Gir dairy crossbred calves housed in shelters with three roofing materials (fibre cement tile, recycled tile, and thatched roofs). The recycled tiles and thatched roofs provided reductions of 18.7 and 14.6% in radiant thermal load, respectively. Regardless the roofing material, all animals increased their respiratory rate to maintain thermal equilibrium.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162016000100013
Editor: | Associação Brasileira de Engenharia Agrícola
Relação: | 10.1590/1809-4430-Eng.Agric.v36n1p13-23/2016
Formato: | text/html
Fonte: | Engenharia Agrícola  v.36 n.1 2016
Fonte: | info:eu-repo/semantics/openAccess