Herbage intake under grazing conditions was assessed for five breeds of sheep, comprising a range of mature sizes, using the n-aikane technique. Adult ewes from breeds of large mature size had higher intakes; however, when intake was expressed relative to metabolic bodyweight breed effects were still significant. The repeatability of intake between consecutive weeks averaged 0.64 and decreased as the interval between measurements increased. The results highlight the importance of direct assessment of food intake as part of breed evaluation programs.

S. A Vulich, J. P Hanrahan, E. G O'Riordan

Proceedings of the World Congress on Genetics Applied to Livestock Production, Volume XV. Beef cattle, sheep and pig genetics and breeding, fibre, fur and meat quality., , 57–60, 1990
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