Summer-autumn rainfall effects on wool staple strength and position of break. II. Rainfall simulations, with or without wind, on sheep on days of different ambient temperatures

Abstract

Previous small-scale field work failed to show any influence on staple strength from various different rainfall simulations, other than those where sheep grazed germinating green pasture following rainfall. The present study was designed to incorporate variables such as ambient temperature and the influence of wind into rainfall simulations onto Merino sheep.

Different treatments did not show any effect on staple strength despite sheep being subjected to simulated rainfall events on warm and cool days, with or without additional wind. This lack of effect on wool quality was despite significant treatment effects on sheep rectal and skin temperatures.