In the third article on potential for Merino clip contamination arising from exotic sheep, Sue Hatcher reviews management strategies needed to avoid it. The importation of Awassi sheep into Australia in 1987 and subsequent imports of other exotic breeds since that time has led to concerns being raised regarding the contamination of the Merino clip from with undesirable fibres from the exotic breeds themselves and their crosses with Merino ewes. The pigmentation characteristics of some of the, exoticbreeds of sheep and the presence of medullated fibres in their fleece are the basis behind the concerns surrounding their commercial development in Australia.
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