The advent of ultrasonic pregnancy scanning has provided new opportunities for the management of breeding ewes. Major benefits of scanning are better allocation of feed resources and improved management at lambing, as well as being a tool to improve the genetic merit of flocks. Scanning results are also the catalyst for farmers focusing more clearly on their flocks` relative reproductive performances either informally through comparing scanning percentages and fertility indices with neighbours, or formally through comprehensive farm monitoring reports.
Proceedings of the New Zealand Society of Animal Production, Volume 59, , 95-96, 1999
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