Impacts of the herd management mode upon the indigenous goat potentialities in oases and rangelands of southern Tunisia

To assess the flocks’ annual productive rates and individual performances both in a oases system under intensified conditions data obtained from a recording program in local goat and ameliorative races herds. Under oases, the local goat herds registered about 93.03%, 138.41% and 129.19, respectively, as fertility, prolificacy and fecundity rates. It is concluded that the local goat’s genetic evolution promoted reproductive and growth performances as biological priorities to guaranty its continuity under harsh conditions. Whereas, dairy performances needing high nutritive requirements were adversely affected by the natural selective process.