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(Reference retrieved automatically from SciELO through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Cutaneous and respiratory evaporation rates of sheep in hot environments

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Author(s):
Roberto Gomes da Silva [1] ; Josiane M. Cardoso Starling [2]
Total Authors: 2
Affiliation:
[1] UNESP. Faculdade de Ciências Agrárias e Veterinárias. Departamento de Zootecnia
[2] Universidade de Franca. Faculdade de Veterinária
Total Affiliations: 2
Document type: Journal article
Source: REVISTA BRASILEIRA DE ZOOTECNIA-BRAZILIAN JOURNAL OF ANIMAL SCIENCE; v. 32, n. 6, p. 1956-1961, 2003-12-00.
Abstract

Ten adult Corriedale sheep were evaluated for respiratory (E R) and cutaneous (E C) evaporation rates. The animals were observed about 10 times each by recording changes in their live weigth with high-sensitiviy strain gauges, under different conditions of air temperature (21.1 to 41.9ºC) and partial vapour pressure (1.53 to 3.01 kPa). Average evaporation rates were 0.7599±0.0094 g.h-1.kg-1 for E R and 1.3029±0.0591 g.h-1.kg-1 for E C. Cutaneous evaporation was considered as an important heat loss mechanism for sheep in hot environments. There were discussed the effects of sex, fleece thickness, air temperature, and air humidity. (AU)