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Stereotype Behaviour In Sows And Gilts Housed In Stalls, Tethers, And Groups, Judith K. Blackshaw, J. F. Mcveigh
Stereotype Behaviour In Sows And Gilts Housed In Stalls, Tethers, And Groups, Judith K. Blackshaw, J. F. Mcveigh
Agribusiness Collection
Observations of sows and gilts in tethers, stalls, and groups showed two distinct types of behaviour: pre-feed behaviour when pigs were anticipating food, and after-feed behaviour. Sows and gilts tethered for the first time do not show pre-feed excitement, but this develops in 42 days which suggests that pre-feed behaviour is not stereotype, as suggested by the literature, but is a conditioned reflex.
The question of the importance of after-feeding behaviours which are often called stereotypies is examined. The total time occupied by these behaviours over 24 hours by tethered sows is 14.5 to 29.0%, by tethered gilts 1.4 to …