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Contribution To A Concept Of Behavioral Abnormality In Farm Animals Under Confinement, U. A. Luescher, J. F. Hurnik
Contribution To A Concept Of Behavioral Abnormality In Farm Animals Under Confinement, U. A. Luescher, J. F. Hurnik
Agribusiness Collection
Farm animals housed in close confinement often engage in activities that do not occur with animals maintained in traditional and more complex environments. Many of these activities consist of species-typical motor patterns directed towards unsuited or inappropriate objects, or performed as vacuum activities. For example, piglets fed from a trough from day 2 to day 21 after parturition display much nosing. of penmates and ear sucking (DeBoer and Hurnik 1984). Similarly, confined veal calves in crates may lick their pelage excessively, or, when housed in groups, may suck the naval area of penmates; laying hens and broilers often engage in …