Cited by 37Animal health and immunologyAnimal Behavior and Welfare StudiesEffects of Environmental Stressors on Livestock

Identification of biomarkers measured upon arrival associated with morbidity, mortality, and average daily gain in grain-fed veal calves

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Goetz, H.M., Kelton, D.F., Costa, J.H.C., Winder, C.B., Renaud, D.L.·2021·Journal of Dairy Science

Abstract

There is a strong need for management strategies that help reduce the incidence of disease and subsequent antimicrobial use in the veal industry. Biomarkers could serve as useful tools that allow producers to take preventative measures before clinical problems occur. The objective of this prospective cohort study was to identify biomarkers measured upon arrival associated with morbidity, mortality, and average daily gain (ADG) in grain-fed veal calves. Upon arrival at a grain-fed veal facility in Ontario, Canada, calves were weighed and health-scored using a standardized health-scoring system. Several metabolites were measured including creatine kinase (CK), cholesterol, haptoglobin, manganese, serum total protein, iron, cobalt, zinc, selenium, molybdenum, and IgG. Farm personnel treated calves according to their farm protocol and weighed them at 78 d after arrival. Performance, treatment, and mortality records from the facility were used for analysis. Multivariable Cox proportional hazard models were created to evaluate metabolic biomarkers associated with morbidity and mortality. A mixed linear regression model was created to determine biomarkers associated with ADG. A total of 992 male dairy calves were evaluated at arrival from January to December 2017. Of the calves evaluated, 74 calves (7.5%) died and 877 (88.4%) were treated for illness over the 11-wk period under observation. Higher levels of haptoglobin and molybdenum were associated with a greater hazard of morbidity, whereas higher weight upon arrival and higher levels of both CK and IgG were associated with a reduced hazard of morbidity. For mortality, higher weight upon arrival and higher levels of cholesterol and IgG were associated with a lower hazard of mortality occurring over the 78-d period of observation. Higher weight, cholesterol, copper, CK, iron, and IgG were associated with increased ADG, whereas increased zinc and haptoglobin were negatively associated with ADG. These results demonstrate that certain biomarkers could be used to identify high-risk calves when measured upon arrival at a veal facility. Future research should focus on determining the utility of these biomarkers to selectively target intervention strategies to improve ADG and reduce morbidity and mortality.

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Crossref · 10.3168/jds.2020-18729

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Authors
Goetz, H. M., Kelton, D. F., Costa, J. H. C., Winder, C. B., & Renaud, D. L.
Affiliations
  • University of Guelph (CA)
  • University of Kentucky (US)
Corresponding author
Renaud, D.L.
Venue
Journal of Dairy Science
Published
2021-01
Volume
104
Issue
1
Pages
874-885
ISSN
0022-0302 (ISSN-L)
OpenAlex
W3095453680
Cited by
37
References
57
Citations by year
2026: 3 · 2025: 5 · 2024: 8 · 2023: 6 · 2022: 10 · 2021: 5
FWCI
5.03
Type
journal article
Language
en
Open access
Locations
  • Journal of Dairy Science (publishedVersion)
  • PubMed (publishedVersion)
Funders
Ontario Ministry of Agriculture, Food and Rural Affairs
Topics
  • Health Sciences › Veterinary › Small Animals › Animal health and immunology
  • Health Sciences › Veterinary › Small Animals › Animal Behavior and Welfare Studies
  • Life Sciences › Agricultural and Biological Sciences › Animal Science and Zoology › Effects of Environmental Stressors on Livestock
Keywords
veal calves, biomarkers, calf morbidity, calf mortality, average daily gain, creatine kinase, haptoglobin, molybdenum, cholesterol, IgG, trace elements, antimicrobial use reduction
MeSH terms
Farms, Animals, Animal Feed, Anti-Bacterial Agents, Cattle, Cattle Diseases, Health Status, Male, Morbidity, Ontario, Prospective Studies, Risk Factors, Cohort Studies, Biomarkers, Weight Gain

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