Detection and economic impact related to bovine respiratory disease, shrink, and traveling distance in feedlot cattle in Northwest Mexico

Authors : José Luis RODRÍGUEZ-CASTILLO, Gilberto LÓPEZ-VALENCIA, Francisco Javier MONGE-NAVARRO, Gerardo Enrique MEDINA-BASULTO, Sawako HORI-OSHIMA, Sergio Arturo CUETO-GONZÁLEZ, Alfonso De La MORA-VALLE, Luis Mario MUÑOZ-DEL REAL, Luis TINOCO-GRACIA, Tomás B

Pages : 294-301

View : 10 | Download : 4

Publication Date : 0000-00-00

Article Type : Research Paper

Abstract :Bovine respiratory disease insert ignore into journalissuearticles values(BRD); is the main reason for economic loss in feedlots. A cross-sectional study was conducted in order to detect the pathogens involved in BRD. A total of 88 animals with respiratory signs were sampled for diagnosis using PCR. The detected pathogens were bovine respiratory syncytial virus insert ignore into journalissuearticles values(80.6%);, Mannheimia haemolytica insert ignore into journalissuearticles values(79.5%);, Pasteurella multocida insert ignore into journalissuearticles values(68.1%);, parainfluenza 3 virus insert ignore into journalissuearticles values(23.8%);, bovine herpes virus-1 insert ignore into journalissuearticles values(20.4%);, and bovine viral diarrhea virus insert ignore into journalissuearticles values(11.3%);. The average number of treatments applied per animal was 1.3 with an estimated treatment cost of 16 USD per treatment/animal. Animals receiving more than one treatment averaged costs exceeding 38 USD per animal. In total, 77% of all animals received the first treatment during the first 3 weeks after arrival. We found a relationship between shrink percentage and the distance traveled by the livestock from its origin to the feedlot insert ignore into journalissuearticles values(P = 0.049);. BRD represents a costly condition for feedlot operations. It is imperative that cattleman and veterinary practitioners recognize the necessity to apply additional preventive medicine strategies to reduce the impact of BRD. Preconditioning and a more systematic use of methaphylaxis may improve our ability to accurately identify the most effective strategies to reduce the impact of BRD.
Keywords : Bovine respiratory disease, feedlot cattle, diagnosis, shrink, treatments, costs