Installed in Cassepedro since 1990, the "Agrupamento de Defesa Sanitária" (ADS) (Health Defence Group), currently known as the "Organização de Produtores Pecuários" (OPP) (Organization of Livestock Producers), is responsible for screening and vaccinating all cattle and small ruminants (sheep and goats) in the municipality of S. Pedro do Sul. Reception and computerization of models resulting from animal movement and lost earrings, registration of herds in accordance with the SNIRA ("Serviço Nacional de Identificação e Registo Animal" - the National Service for Animal Identification and Registration).
