Technical note: colorimetric methods for accurate determination of nutrient composition in beef cow colostrum and milk.
J Anim Sci
; 1012023 Jan 03.
Article
en En
| MEDLINE
| ID: mdl-36961880
The purpose was to develop laboratory methods to measure lactose, fat, protein, and urea nitrogen in beef cow colostrum (first milk) and milk and to validate single-quarter colostrum yield as a predictor of total colostrum yield. Additionally, new methods were compared with Fourier transform infrared spectroscopy (FTIR), which is the primary method of dairy cow milk nutrient analysis. New laboratory methods were determined to be accurate for beef cow colostrum and milk analysis, and single-quarter colostrum yield was successful in predicting total colostrum yield. Overall, our data suggest that beef cow colostrum cannot be accurately analyzed by FTIR instruments, and accuracy of FTIR for beef cow milk analysis varies with nutrients and may be affected by the day of lactation.
Palabras clave
Texto completo:
1
Colección:
01-internacional
Banco de datos:
MEDLINE
Asunto principal:
Colorimetría
/
Lactosa
Límite:
Animals
/
Pregnancy
Idioma:
En
Revista:
J Anim Sci
Año:
2023
Tipo del documento:
Article
País de afiliación:
Estados Unidos