A comparison of cutaneous evaporation rates in cattle exposed to heat in a climate laboratory and in the field.

Murray, D. M.

1. The cutaneous evaporation rates of three animals of different genotype have been determined under artificial heating in a climate laboratory and during exposure to field conditions. Cutaneous evaporation rates were measured from the backthoracic region using a ventilated capsule technique.2. In both climate-laboratory studies and field observations cutaneous evaporation showed little relationship with either rectal temperature, respiratory rate or skin temperature.3. Basal cutaneous evaporation rates in the unheated chamber at 10 a.m. were found to be 40% lower in animals which were housed overnight than in those which entered the chamber following exposure to the early morning sunlight.

Journal of Agricultural Science, 1966, Vol 66, Issue 2, p175

0021-8596

Academic Journal

10.1017/S0021859600062560