The behaviour of dairy bulls kept in groups

Abstract
(1) Observations were made on a group of dairy bulls at pasture during the summer of 1964. The grazing behaviour of the bulls was similar to that of cows except that they were more sensitive to disturbance and the herd instinct as seen in cows was absent. (2) Dairy bulls in a group formed a restless community. Apart from dis turbances within the group, the presence of men, dogs, vehicles and bulls from other groups could disturb the group equilibrium. The signs of disturbance were bellowing, pawing and horning the ground, fighting and outbursts of sexual activity. (3) No clearly defined order of social dominance could be detected and the bulls retained their individuality at all times.

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