52. Turkeys will spend much time investigating their surroundings and reacting to environmental stimuli. Their curiosity is evident to people entering a turkey shed. In order that turkeys have the opportunity to manipulate objects they should be provided with adequate stimuli such as vegetable and other appropriate material which does not cause them harm.
53. Studies should be carried out to ascertain the materials and means which are the most effective for enriching the environment for turkeys to promote activity and reduce injurious behaviour, and which are also safe for the birds (e.g. those which avoid introducing infectious diseases into the sheds).