This study was conducted at El- khuwei Locality, North Kordofan State, Sudan. Two sites were selected El-Rosa enclosure and a control in the open area nearby. The overall objective was to provide information that contributes to a better understanding of the plant- animal interactions, and thereby develop a more resilient and sustainable livestock production system based on natural rangelands. Range vegetation measurements were then conducted and botanical composition of the diet selected by sheep was determined using the bite count technique. Moreover, voluntary feed intake was assessed using...