Advances in Animal and Veterinary Sciences · 2020 · 12 citations · 3 references
Veterinary MedicineAnimal SciencesVeterinary EpidemiologyBeef Cattle MedicineHerd HealthRuminant MedicineAnimal Infectious DiseasesCalf HealthLivestock Infectious DiseasesRuminant Herd HealthRuminant Infectious DiseasesRuminant Respiratory DiseasesAverage GainBovine Respiratory Disease ComplexCalf MorbidityCalf Respiratory DiseaseFeedlot Respiratory DiseaseFeedlot SystemsRespiratory Epidemiology
B ovine respiratory disease (BRD) is considered one of the most common worldwide affections in calves causing huge economic losses due to reduction of feed efficiency, average daily gain, overall performance and finally calf mortality (Härtel et al., 2004; Taylor et al., 2010).The incidence of BRD has been reported with variability from 5 to 66% in feedlot cattle and it is the most costly beef cattle disease (Snowder et al., 2006).BRD in calves is a multi-etiological entity associated with several infectious agents and other factors (Fulton, 2009).Besides infectious agents, multiple environmental and
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