The scaling of eye size with body mass in birds
We developed a simple method that uses skulls to estimate the diameter, and hence the mass, of birds’ eyes. Allometric analysis demonstrated that, within five orders (parrots, pigeons, petrels, raptors and owls) and across 104 families of flying birds, eye mass is proportional to (body mass)0.68 over a range of body masses (6 g to […]
Qualitative Behavioural Assessment of Angus steers during pre-slaughter handling and relationship with temperament and physiological responses
This study examined the behavioural expression of cattle immediately prior to slaughter through the process of Qualitative Behavioural Assessment (QBA), and compared these results to measurements of physiology and temperament. Twenty-eight Angus steers were filmed while in a funnel chute as they were being moved towards an abattoir killing box. Footage of cattle was shown […]