Abstract
Effect of temperature on colostrometer readings for estimation of immunoglobulin concentration in bovine colostrum was investigated. Twenty-five colostrum samples were collected within 24 h postpartum from Holstein cows. Immunoglobulin concentration of colostrum was measured using a colostrometer through 5°C increments from 0 to 40°C. Two technicians measured independently a total of 225 samples. The agreement between technicians’ readings was high (r = .98); thus, readings were averaged and used in regression analysis. A final regression model explained 92.5% of the total variation: corrected reading at 20°C = uncorrected reading − 13.2 + .8 × temperature (°C). The regression equation was used to develop a conversion chart for practical field use.
Original language | English (US) |
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Pages (from-to) | 3940-3943 |
Number of pages | 4 |
Journal | Journal of dairy science |
Volume | 74 |
Issue number | 11 |
DOIs | |
State | Published - 1991 |
All Science Journal Classification (ASJC) codes
- Food Science
- Animal Science and Zoology
- Genetics