Stress and adaptation in beef heifers . 1. Effect of pen conditions on adrenal cortex activity of Shorthorn, Afrikaner and Bon
Eighteen beef heifers, representing the Bos taurus (Shorthorn), Bos indicus (Afrikaner) and intermediate (Bonsmara) types, were confined to a pen with floor space of 4,6 m2 per heifer. A similar number of heifers on the veld served as a control.…
