Assessment of Brix refractometry to estimate immunoglobulin G concentration in beef cow colostrum

Assessment of Brix refractometry to estimate immunoglobulin G concentration in beef cow colostrum

Background Brix refractometry can be used to assess colostral immunoglobulin G (IgG) concentration, but studies identifying Brix percentages to detect high‐ and low‐IgG colostrum are lacking for beef cows and interlaboratory agreement is unknown. Objectives Evaluate Brix refractometer performance an...

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Veröffentlicht in:Journal of veterinary internal medicine 2020-07, Vol.34 (4), p.1662-1673
Hauptverfasser: Gamsjäger, Lisa, Elsohaby, Ibrahim, Pearson, Jennifer M., Levy, Michel, Pajor, Edmond A., Haines, Deborah M., Windeyer, M. Claire
Format: Artikel
Sprache:eng
Schlagworte:
Animals
Beef
Brix refractometer
Canada
Cattle
Colostrum - chemistry
Colostrum - immunology
colostrum quality
Female
FOOD AND FIBER ANIMAL
Immunodiffusion - veterinary
immunoglobulin G
Immunoglobulin G - analysis
Immunoglobulins
Laboratories
Parity
Refractometry - methods
Refractometry - veterinary
Reproducibility of Results
Statistical analysis
Studies
transfer of passive immunity
Veterinarians
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Zusammenfassung:Background Brix refractometry can be used to assess colostral immunoglobulin G (IgG) concentration, but studies identifying Brix percentages to detect high‐ and low‐IgG colostrum are lacking for beef cows and interlaboratory agreement is unknown. Objectives Evaluate Brix refractometer performance and interlaboratory agreement for assessing beef cow colostrum IgG concentration, including determination of thresholds to identify colostrum containing IgG concentrations
ISSN:0891-6640
1939-1676
DOI:10.1111/jvim.15805