What risk arises if a captive onager's diet leans too heavily toward rich, high-sugar foods common in standard horse feeds?

Answer

Obesity and metabolic issues

A diet too rich in high-sugar foods can lead to obesity and metabolic issues because it fails to mimic the necessary digestive 'work' provided by coarse desert vegetation.

What risk arises if a captive onager's diet leans too heavily toward rich, high-sugar foods common in standard horse feeds?
dietanimalherbivoreOnager