Livestock markets play an important role in the cattle movement network in Pernambuco, Brazil

• Main Authors: José Lopes Silva Júnior, Erivânia Camelo Almeida, Fabíola Nascimento Corrêa, Paula Regina Barros Lima, Raul Ossada, Fernando Silveira Marques, Ricardo Augusto Dias, Fernando Ferreira, José Soares Ferreira Neto, José Henrique Hildebrand Grisi-Filho, Marcos Amaku, Hélio Cordeiro Manso Filho, Jean Carlos Ramos Silva
• Format: Article
• Language: English
• Published: Universidade de São Paulo 2017-11-01
• Series: Brazilian Journal of Veterinary Research and Animal Science
• Subjects: Animal movement; Official veterinary service; Network; Epidemiological surveillance
• Online Access: http://www.revistas.usp.br/bjvras/article/view/124303

The animal trade is an important risk factor that affects the spread of diseases among animals and herds. The goal of the present study was to characterize the cattle movement network in Pernambuco, Brazil, based on the animal movement permits (Guias de Trânsito Animal; GTAs) from 2012 to 2013, and identify the intensity of the commercial relationship between farm premises. A total of 737,950 GTAs were issued, and the movement of 3,481,185 cattle (1,688,585 in 2012 and 1,792,600 in 2013) was analyzed. Of the moved animals analyzed, 52.57% (1,829,907/3,481,185) were involved in the movement of cattle in or out of livestock markets, indicating that livestock markets played a major role in the network. Approximately 20% of the more-connected premises were responsible for approximately 87% of the movement related to sales and 95% of the movement related to purchases. Considering the important role of livestock markets and the intense cattle trade between farm premises, surveillance, and control measures could be more efficient if targeted to livestock markets and highly connected premises to prevent the spread of infectious diseases.