| Production System | Autochthonous breeds | Characterization | Risk Factors |
| Galaico-Duriense grazing system | Churra do Minho and Churra Galega Mirandesa | Small familiar exploration. Private pasture areas (marshes). | Decrease of pastoral activity. Human desertification. |
| Complex systems from Terra Fria and Beira Alta | Churra Galega Bragançana | Small familiar exploration. Community grazing system. | Decrease of pastoral activity. Human desertification. |
| Serra da Estrela grazing system | Serra da Estrela | Small familiar exploration. Dynamic milk market – adaptation of traditional cheese production. | Decrease of pastoral activity. Human desertification. |
| Grazing system used in the Center (Maciço Calcário Estremenho) | Mondegueira | Small familiar exploration. Utilization of natural pastures. | Decrease of pastoral activity. Human desertification. |
| Mixed system used in Alentejo | Merina and Campaniça | System based on arable lands and private natural pastures. | Competition with other activities. System balance depends on agricultural policy. |
| Serra Algarvia grazing system | Churra Algarvia | Small familiar exploration with private pasture areas. | Decrease of pastoral activity. Human desertification. |