SINCE HORSES HAVE evolved to move around, grazing for 18 hours a day, it isn't surprising that putting them in a stable with a single haynet can cause some level of stress. This may be expressed in a number of ways, including ‘undesirable’ behaviour, so the owner then needs to identify any possible causes and ensure a horse's psychological and physiological needs are met.
Stress management
It is important to identify whether excitable behaviour is sheer exuberance or a reaction to potential stress factors. Horses can be stressed in their environment and work for