The study focuses on dairy cattle breeding systems and sources of innovation for breeders, the dairy basins of Sétif and Souk-Ahras recognized by cereal farming, dairy cattle breeding (80 percent of the national herd) and crops irrigated. The results confirm three production systems by principal component analysis and ascending hierarchical classification on a sample of 140 family farms selected and surveyed. At the same time as an emergence of professional organizations and agricultural cooperatives in the transfer of information on innovations. Innovation relating to breeding practices (feeding, reproduction, herd management, hygiene and prophylaxis) comes from local socio-technical networks (27 to 33 percent). While professional organizations and agricultural cooperatives contribute 43 to 44 percent for breeders in systems 3 and 1 and 34 percent for system 2. This constitutes a new mode of cooperation and agreement between farmers to defend their interests. Also the socio-technical network confirms its importance and is the foundation of grassroots community based organizations (CBO) in Algeria.