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In modern meat production, broiler chickens are usually barn raised in deep litter where a special structured environment is typically not intended. Natural behaviors of the domestic fowl, such as running freely, pecking, scratching, flapping wings, grooming plumage, resting and sleeping undisturbed, can be restricted by lack of opportunities. Additional welfare concerns in industrial poultry farming...
Gray parrots (Psittacus erithacus) are popular companion birds, particularly noted for their ability to mimic human speech, their intelligence, and longevity. They are also prone to developing abnormal behaviors such as feather damaging behavior. This review explores the current available knowledge on gray parrots kept as companion birds with respect to behavioral problems and their management. The...
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