Sheep, Artificial insemination
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The judicious use of artificial insemination (Al) of ewes with frozen semen by ram breeders offers substantial gains for wool producers, but it promises even greater benefits if it can be used more widely within commercial breeding flocks.
In the Western Australian dairy industry, for example, genetic gains between 1971 and /986 are estimated to have been three times as great in herds bred by Al as in herds that were mated naturally.
"Artificial insemination of ewes with frozen semen,"
Journal of the Department of Agriculture, Western Australia, Series 4: Vol. 34:
1, Article 5.
Available at: https://library.dpird.wa.gov.au/journal_agriculture4/vol34/iss1/5