Article
The effect of Johne's disease on production traits in Romney, Merino and Merino x Romney-cross ewes.
New Zealand veterinary journal - 1 Oct 2006
Morris C A, Hickey S M, Henderson H V
Abstract excerpt
AIM: To quantify the effects of clinical Johne's disease on the performance of Romney, Merino and Merino x Romney-cross ewes. METHODS: The performance of ewes was compared using eight birth cohorts (1971-1978). Merino and Merino-cross genotypes included New Zealand Merino and Australian Superfine...
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