Turkish Journal of Veterinary and Animal Sciences

Yazarlar: José Luis ROGUEZ-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 Benjamín ENTERÍA-EVANGELISTA

Konular:Fen

Anahtar Kelimeler:Bovine respiratory disease,Feedlot cattle,Diagnosis,Shrink,Treatments,Costs

Özet: Bovine respiratory disease (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 (80.6%), Mannheimia haemolytica (79.5%), Pasteurella multocida (68.1%), parainfluenza 3 virus (23.8%), bovine herpes virus-1 (20.4%), and bovine viral diarrhea virus (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 (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.

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