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Comparative fescue foot potential of fescue varieties

Author:
Cornell, C.N., Garner, G.B., Yates, S.G., Bell, S.
Source:
Journal of animal science 1982 v.55 no.1 pp. 180
ISSN:
0021-8812
Subject:
Festuca arundinacea, toxicity, cattle, steers, grazing, food plants, poisonous plants, varieties, fescue toxicosis, foot diseases, hooves, signs and symptoms (animals and humans), liveweight gain, forage evaluation, Missouri
Abstract:
During winter 5 varieties of tall fescue (Festuca arundinacea) were grazed by steers and evaluated for their fescue foot toxicity potential. In order of their relative toxicity, the varieties were KY-31, Kenhy, Mo-96, Kenmont and Fawn. Ky-31 was the most toxic in 2 or 3 annual grazing experiments. Kenhy, Mo-96 and Kenmont were intermediate in toxicity as estimated by observations of knuckling, lameness, swelling about the dewclaws, and tail tip or coronary band necrosis. Fawn was consistently least toxic. Mean daily gain in winter trials during the 3 years was highly variable because of seasonal differences. There did not seem to be a relation between gain and relative toxicity. Only 1 steer developed clinical signs severe enough to warrant removal from the experiment.
Agid:
25283
Handle:
10113/25283