0086 A systematic review-meta-analysis of castration and welfare indicators in beef cattle

2016 ◽  
Vol 94 (suppl_5) ◽  
pp. 40-40
Author(s):  
M. E. A. Canozzi ◽  
A. Mederos ◽  
D. Zago ◽  
G. R. Pereira ◽  
J. O. Barcellos
Keyword(s):  
Systematic Review ◽  
Beef Cattle ◽  
Meta Analysis ◽  
Welfare Indicators

scholarly journals Dehorning and welfare indicators in beef cattle: a meta-analysis

2019 ◽  
Vol 59 (5) ◽  
pp. 801 ◽  
Author(s):  
M. E. A. Canozzi ◽  
A. Mederos ◽  
S. Turner ◽  
X. Manteca ◽  
C. McManus ◽  
...  
Keyword(s):  
Systematic Review ◽  
Pain Relief ◽  
Beef Cattle ◽  
Local Anaesthesia ◽  
Meta Analysis ◽  
Average Daily Gain ◽  
Random Effect ◽  
Cortisol Concentration ◽  
Welfare Indicators ◽  
Daily Gain

Dehorning is a common practice in cattle farming. Researchers suggest that pain during dehorning can be mitigated, although there is no conclusive evidence about the best technique and the best manner of pain relief. A systematic review-meta-analysis was performed to clarify the effect of dehorning on welfare indicators (cortisol concentration or average daily gain or vocalisation) in beef cattle up to 12 months of age. Five electronic databases were systematically searched, as well as conference proceedings and experts were contacted electronically. Pre-defined protocols were applied during all steps of the systematic review process. A random effect meta-analysis was conducted for each indicator separately with the mean of the control and treated groups. Four publications reporting seven studies and 69 trials were included in the MA involving 287 cattle. Heterogeneity between studies was observed for cortisol (I2 = 50.5%), average daily gain (I2 = 70.5%), and vocalisation (I2 = 91.9%). When comparing the non-dehorned group with amputation dehorning, the cortisol concentration was lower 30 min (P < 0.0001) and 120 min (P = 0.023) after procedure (0.767 nmol/L and 0.680 nmol/L, respectively). Local anaesthesia did not show a reduction in cortisol concentration at 30 min after dehorning by amputation. Non-dehorned animals had a tendency to decrease the number of vocalisation (P = 0.081; MD = 0.929) compared with the group dehorned by amputation. These results suggest that dehorning is a painful experience and that local anaesthesia did not alleviate short-term pain following dehorning. Further investigation into pain relief is required to improve confident decision making under practical conditions.

scholarly journals A systematic review and network meta-analysis of injectable antibiotic options for the control of bovine respiratory disease in the first 45 days post arrival at the feedlot

2019 ◽  
Vol 20 (2) ◽  
pp. 163-181
Author(s):  
A. M. O'Connor ◽  
D. Hu ◽  
S. C. Totton ◽  
N. Scott ◽  
C. B. Winder ◽  
...  
Keyword(s):  
Systematic Review ◽  
Beef Cattle ◽  
Respiratory Disease ◽  
Citation Index ◽  
Meta Analysis ◽  
Bovine Respiratory Disease ◽  
The United States ◽  
Feedlot Cattle ◽  
Freedom Of Information ◽  
Biological Index

AbstractWe conducted a systematic review and network meta-analysis to determine the comparative efficacy of antibiotics used to control bovine respiratory disease (BRD) in beef cattle on feedlots. The information sources for the review were: MEDLINE®, MEDLINE In-Process and MEDLINE® Daily, AGRICOLA, Epub Ahead of Print, Cambridge Agricultural and Biological Index, Science Citation Index, Conference Proceedings Citation Index – Science, the Proceedings of the American Association of Bovine Practitioners, World Buiatrics Conference, and the United States Food and Drug Administration Freedom of Information New Animal Drug Applications summaries. The eligible population was weaned beef cattle raised in intensive systems. The interventions of interest were injectable antibiotics used at the time the cattle arrived at the feedlot. The outcome of interest was the diagnosis of BRD within 45 days of arrival at the feedlot. The network meta-analysis included data from 46 studies and 167 study arms identified in the review. The results suggest that macrolides are the most effective antibiotics for the reduction of BRD incidence. Injectable oxytetracycline effectively controlled BRD compared with no antibiotics; however, it was less effective than macrolide treatment. Because oxytetracycline is already commonly used to prevent, control, and treat BRD in groups of feedlot cattle, the use of injectable oxytetracycline for BRD control might have advantages from an antibiotic stewardship perspective.

The Use of Direct-Fed Microbials to Reduce Shedding ofEscherichia coliO157 in Beef Cattle: A Systematic Review and Meta-analysis

2014 ◽  
Vol 62 (2) ◽  
pp. 75-89 ◽  
Author(s):  
L. V. Wisener ◽  
J. M. Sargeant ◽  
A. M. O'Connor ◽  
M. C. Faires ◽  
S. K. Glass-Kaastra
Keyword(s):  
Systematic Review ◽  
Beef Cattle ◽  
Meta Analysis

scholarly journals The effect of tylosin on antimicrobial resistance in beef cattle enteric bacteria: A systematic review and meta-analysis

2020 ◽  
Vol 176 ◽  
pp. 104934
Author(s):  
Casey L. Cazer ◽  
Erin R.B. Eldermire ◽  
Guillaume Lhermie ◽  
Sarah A. Murray ◽  
H. Morgan Scott ◽  
...  
Keyword(s):  
Systematic Review ◽  
Antimicrobial Resistance ◽  
Beef Cattle ◽  
Meta Analysis ◽  
Enteric Bacteria

scholarly journals A systematic review and network meta-analysis of bacterial and viral vaccines, administered at or near arrival at the feedlot, for control of bovine respiratory disease in beef cattle

2019 ◽  
Vol 20 (2) ◽  
pp. 143-162 ◽  
Author(s):  
A. M. O'Connor ◽  
D. Hu ◽  
S. C. Totton ◽  
N. Scott ◽  
C. B. Winder ◽  
...  
Keyword(s):  
Systematic Review ◽  
Conference Proceedings ◽  
Beef Cattle ◽  
Respiratory Disease ◽  
Citation Index ◽  
Meta Analysis ◽  
Bovine Respiratory Disease ◽  
Antibiotic Use ◽  
Comparative Efficacy ◽  
Biological Index

AbstractVaccination against putative causal organisms is a frequently used and preferred approach to controlling bovine respiratory disease complex (BRD) because it reduces the need for antibiotic use. Because approximately 90% of feedlots use and 90% of beef cattle receive vaccines in the USA, information about their comparative efficacy would be useful for selecting a vaccine. We conducted a systematic review and network meta-analysis of studies assessing the comparative efficacy of vaccines to control BRD when administered to beef cattle at or near their arrival at the feedlot. We searched MEDLINE, MEDLINE In-Process, MEDLINE Daily Epub Ahead of Print, AGRICOLA, Cambridge Agricultural and Biological Index, Science Citation Index, and Conference Proceedings Citation Index – Science and hand-searched the conference proceedings of the American Association of Bovine Practitioners and World Buiatrics Congress. We found 53 studies that reported BRD morbidity within 45 days of feedlot arrival. The largest connected network of studies, which involved 17 vaccine protocols from 14 studies, was included in the meta-analysis. Consistent with previous reviews, we found little compelling evidence that vaccines used at or near arrival at the feedlot reduce the incidence of BRD diagnosis.

The effects of low-ratio n-6/n-3 PUFA on biomarkers of inflammation: a systematic review and meta-analysis

2021 ◽  
Author(s):  
Yali Wei ◽  
Yan Meng ◽  
Na Li ◽  
Qian Wang ◽  
Liyong Chen
Keyword(s):  
Systematic Review ◽  
Fatty Acid ◽  
Polyunsaturated Fatty Acid ◽  
Meta Analysis ◽  
Chain Polyunsaturated Fatty Acid ◽  
Inflammation Markers ◽  
Pufa Supplementation ◽  
Long Chain

The purpose of the systematic review and meta-analysis was to determine if low-ratio n-6/n-3 long-chain polyunsaturated fatty acid (PUFA) supplementation affects serum inflammation markers based on current studies.

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