A retrospective analysis of risk factors associated with bovine respiratory disease treatment failure in feedlot cattle

2017 ◽  
Vol 95 (4) ◽  
pp. 1521
Author(s):  
T. D. Avra ◽  
K. M. Abell ◽  
D. D. Shane ◽  
M. E. Theurer ◽  
R. L. Larson ◽  
...  
Keyword(s):  
Risk Factors ◽  
Treatment Failure ◽  
Retrospective Analysis ◽  
Respiratory Disease ◽  
Bovine Respiratory Disease ◽  
Feedlot Cattle ◽  
Disease Treatment ◽  
Factors Associated

scholarly journals A retrospective analysis of risk factors associated with bovine respiratory disease treatment failure in feedlot cattle1

2017 ◽  
Vol 95 (4) ◽  
pp. 1521-1527
Author(s):  
T. D. Avra ◽  
K. M. Abell ◽  
D. D. Shane ◽  
M. E. Theurer ◽  
R. L. Larson ◽  
...  
Keyword(s):  
Risk Factors ◽  
Treatment Failure ◽  
Retrospective Analysis ◽  
Respiratory Disease ◽  
Bovine Respiratory Disease ◽  
Disease Treatment ◽  
Factors Associated

scholarly journals Population-level effects of risk factors for bovine respiratory disease in Australian feedlot cattle

2017 ◽  
Vol 140 ◽  
pp. 78-86 ◽  
Author(s):  
K.E. Hay ◽  
J.M. Morton ◽  
A.C.A. Clements ◽  
T.J. Mahony ◽  
T.S. Barnes
Keyword(s):  
Risk Factors ◽  
Respiratory Disease ◽  
Bovine Respiratory Disease ◽  
Population Level ◽  
Feedlot Cattle

scholarly journals Risk factors associated with exposure to bovine respiratory disease pathogens during the peri-weaning period in dairy bull calves

2018 ◽  
Vol 14 (1) ◽  
Author(s):  
Gerard M. Murray ◽  
Simon J. More ◽  
Tracy A. Clegg ◽  
Bernadette Earley ◽  
Rónan G. O’Neill ◽  
...  
Keyword(s):  
Risk Factors ◽  
Respiratory Disease ◽  
Bovine Respiratory Disease ◽  
Factors Associated ◽  
Bull Calves ◽  
Dairy Bull

Factors associated with Bovine Respiratory Disease case fatality in feedlot cattle

2021 ◽  
Author(s):  
C Blakebrough-Hall ◽  
P Hick ◽  
T J Mahony ◽  
L A González
Keyword(s):  
Respiratory Disease ◽  
Nasal Swab ◽  
Animal Health ◽  
Bovine Respiratory Disease ◽  
Case Fatality ◽  
Mixed Effects ◽  
Feedlot Cattle ◽  
Blood Metabolites ◽  
Factors Associated ◽  
Production Factors

Abstract Bovine Respiratory Disease (BRD) is the primary cause of morbidity and mortality in cattle feedlots. There is a need to understand what animal health and production factors are associated with increased mortality risk due to BRD. The aim of the present study was to explore factors associated with BRD case fatality in feedlot cattle. Four pens totalling 898 steers were monitored daily for visual signs of BRD such as difficult breathing and coughing, and animals exhibiting signs of BRD were taken to the hospital shed for further examination and clinical measures. Blood samples were obtained at feedlot entry and at time of first BRD pull from animals diagnosed with BRD (n=121) and those that died due to BRD confirmed by post-mortem examination (n=16; 13.2% case fatality rate). Mixed-effects linear regression models were used to estimate differences in animal health and production factors and the relative concentrations of 34 identified blood metabolites between animals that survived versus those that died. Generalised linear mixed-effects models were used to obtain the odds of being seronegative (at both feedlot entry and first BRD pull) to five BRD viruses and having a positive nasal swab result at the time of first pull in died and survived animals. Animals that died from BRD had lower average daily gain (ADG), reduced weight at first BRD pull, higher visual BRD scores and received more treatments for BRD compared to animals that survived BRD (P < 0.05). The odds of being seronegative for bovine viral diarrhea virus 1 (BVDV-1) was 5.66 times higher for animals that died compared to those that survived (P = 0.013). The odds of having a positive bovine coronavirus nasal swab result were 13.73 times higher in animals that died versus those that survived (P = 0.007). Animals that died from BRD had higher blood concentrations of α glucose chain, β-hydroxybutyrate, leucine, phenylalanine and pyruvate compared to those that survived (P < 0.05). Animals that died from BRD had lower concentrations of acetate, citrate and glycine compared to animals that survived (P < 0.05). The results of the current study suggest that ADG to first BRD pull, weight at first BRD pull, visual BRD score, the number of BRD treatments, seronegativity to BVDV-1, virus positive to BCoV nasal swab, and that certain blood metabolites are associated with BRD case fatality risk. The ability of these measures to predict the risk of death due to BRD needs further research.

Bovine respiratory disease treatment failure: definition and impact

2020 ◽  
Vol 21 (2) ◽  
pp. 172-174
Author(s):  
Calvin W. Booker
Keyword(s):  
Treatment Failure ◽  
Respiratory Disease ◽  
Bovine Respiratory Disease ◽  
Chronically Ill ◽  
Employee Morale ◽  
Negative Effects ◽  
Disease Treatment ◽  
Carcass Disposal ◽  
Direct And Indirect Impacts ◽  
Indirect Impacts

AbstractBovine respiratory disease (BRD) treatment failure occurs when animals receiving a treatment regimen for BRD fail to directly return to health, resulting in chronic illness and a requirement for repeated treatments, sale for salvage slaughter, euthanasia or death. BRD treatment failure has both direct and indirect impacts. Direct impacts include costs to manage chronically ill animals, including those associated with BRD relapse treatment; reduced returns from animals sent for salvage slaughter, loss of the initial investment to purchase the animal and feed and other accumulated expenses to death, and costs associated with carcass disposal. Indirect impacts include costs of infrastructure requirements, and negative effects on animal welfare and employee morale.

Analysis of Risk Factors Associated withSalmonellaspp. Isolated from U.S. Feedlot Cattle

2010 ◽  
Vol 7 (7) ◽  
pp. 825-833 ◽  
Author(s):  
Alice L. Green ◽  
David A. Dargatz ◽  
Bruce A. Wagner ◽  
Paula J. Fedorka-Cray ◽  
Scott R. Ladely ◽  
...  
Keyword(s):  
Risk Factors ◽  
Feedlot Cattle ◽  
Factors Associated
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