Kaynak dil: İngilizce
In 2001, research was undertaken by AWTA Ltd and the South Australian Research & Development Institute (SARDI) on contamination of Merino wool caused by contact with exotic sheep breeds. A key outcome of this research was that contamination from this source is detectable in the core-samples routinely used for Yield & Micron testing – thus allowing a test to be developed for woolgrowers. This test used the Dark Fibre Detector originally developed by CSIRO for detecting contamination in wool tops.