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Evaluation of 3 refractometers to determine transfer of passive immunity in neonatal beef calves
- Source :
- Journal of Veterinary Internal Medicine
- Publication Year :
- 2020
- Publisher :
- John Wiley & Sons, Inc., 2020.
-
Abstract
- Background Refractometry is used to assess transfer of passive immunity (TPI), but studies evaluating different refractometers and appropriate thresholds for recommended target immunoglobulin G (IgG) concentrations for beef calves are limited. Objectives To evaluate test performance of digital (DSTP) and optical (OSTP) serum total protein (STP) refractometers and a digital Brix (DBRIX) refractometer for assessment of passive immunity in beef calves. Animals A total of 398 beef calves from 6 herds, 1 to 7 days of age. Methods Serum IgG concentration was estimated by DSTP, OSTP, and DBRIX, and measured by radial immunodiffusion (RID). Correlation coefficients (r) among results were calculated. Optimal STP and Brix thresholds for identification of IgG
- Subjects :
- Immunodiffusion
040301 veterinary sciences
medicine.medical_treatment
Immunology
Passive immunity
Standard Article
030204 cardiovascular system & hematology
FOOD AND FIBER
transfer of passive immunity
0403 veterinary science
03 medical and health sciences
immunoglobulin G
0302 clinical medicine
Animal science
Refractometer
medicine
Animals
Brix
beef calves
Total protein
Radial immunodiffusion
General Veterinary
business.industry
Diagnostic Tests, Routine
04 agricultural and veterinary sciences
Standard Articles
Refractometry
refractometer
Area Under Curve
serum total protein
Test performance
Cattle
business
Kappa
Subjects
Details
- Language :
- English
- ISSN :
- 19391676 and 08916640
- Volume :
- 35
- Issue :
- 1
- Database :
- OpenAIRE
- Journal :
- Journal of Veterinary Internal Medicine
- Accession number :
- edsair.doi.dedup.....de9d3440fa19d82515f5530de0ed8778