The objective of this article is to identify feeding modalities of sheep flocks in the steppes of the region of M'Sila in Algeria. This region has a strong potential for sheep farming on its steppe rangelands, which have experienced since the last century biophysical and anthropogenic disturbances altering lands, bio-resources and productivity. As a result, sheep farmers are forced to look for alternative solutions to feed their animals. In order to assess the changes adopted in the farms, we selected a reasoned sample of 100 breeders and agro-breeders, interviewed with the help of "local resource person" whose role is to facilitate the contact. The sampling carried out provides a good representation of the different sheep breeding systems encountered in the study area. The interpretation of the information obtained highlights three ways of feeding sheep flocks. As an alternative to the massive use of concentrates in the diet, the integration of forage crops in the feeding of sheep flocks represents a new practice for a category of agro-pastoralists. Three types of crops are used for green feeding: barley, oats and alfalfa. These trends appear as curative and incomplete solutions to the lack of pastoral resources. Nevertheless, they can inspire reflections on possible solutions to the lack of fodder resources in steppe environments by reducing the stocking rate on rangelands.