Omnivores Going Astray: a Review and New Synthesis of Abnormal Behavior in Pigs and Laying Hens
apunisw2 Pigs and poultry are by far the most omnivorous of the domesticated farm animals and it is in their nature to be highly explorative.In the barren production environments, this motivation to explore can be expressed as abnormal oral manipulation directed towards pen-mates.Tail biting in pigs and feather pecking in laying hens are examples o