BOARD-INVITED REVIEW: Recent advances in management of highly stressed, newly received feedlot cattle

Morbidity andmortality frombovine respiratory disease (BRD) in newly weaned/received cattle continue to be the most significant health problems facing the US beef cattle industry. In a recent survey of Kansas feedlots, there seemed to be a trend for increased death losses in feedlot cattle over the last decade (Babcock et al., 2006), and BRD was the leading cause of morbidity and mortality in a cross-sectional survey sent to 561 feedlots in 21 states (Woolums et al., 2005).

Discovery Zone:

In vitro antimicrobial susceptibility of Pasteurella haemolytica and Pasteurella multocida recovered from cattle with bovine respiratory disease complex

The antimicrobial susceptibilities of 421 Pasteurella haemolytica and 158 P. multocida isolates recovered from cattle with respiratory disease were determined with a microdilution minimal inhibitory concentration test system. Isolates were analyzed for patterns of resistance to ampicillin, ceftiofur, erythromycin, gentamicin, penicillin, spectinomycin, sulfachlorpyridazine, sulfadimethoxine, tetracycline, and tylosin. All isolates tested were found susceptible to ceftiofur and sulfachlorpyridazine.

Discovery Zone:

Respiratory Disease of the Bovine Neonate

Respiratory disease is a constant challenge for dairy replacement heifer rearing systems, and is responsible for 21.3% of mortality in preweaned calves and 50.4% of deaths in weaned heifers.1 There are many negative long-term consequences for survivors of subclinical, clinical, and chronic calf pneumonia including poor growth, reproductive performance, milk production, and longevity.2–4 These calves also become sources of infection for other calves, and can cause outbreaks after weaning in group pens.5 Contamination of the environment with bacterial and viral pathogens is the obvio

Bovine Respiratory Disease

Informative Bovine Respiratory Disease video covering how the infection spreads and treatment benefits of RESFLOR GOLD.


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