Work

Predicting calcium status in early lactation multiparous Holsteins using milk constituent analysis

Year: 2024

Type: conference-abstract

Abstract: Due to the unique challenges of supporting milk production, subclinical hypocalcemia (SCH) is common among early lactation dairy cows. Though SCH immediately following parturition may constitute normal adaptation to the transition period, there is growing evidence that cows with SCH beyond 4 days postpartum (DIM) have developed dyscalcemia, a pattern of calcium dysregulation that has been associated with negative health and production outcomes. Despite prevalence of dyscalcemia ranging from 25% to 45%, identifying cows with dyscalcemia remains a major challenge on commercial dairies. Our objective was to develop an algorithm for predicting dyscalcemia status using Fourier-transform mid-infrared spectroscopic (FT MIR) analysis of milk samples at 3 and 4 DIM.

Source: American Association of Bovine Practitioners Conference Proceedings

DOI: 10.21423/aabppro20238912

Authors: J. Seminara, K. Callero, C. Seely, M. Van Althuis, S. An, C. Salpekar, D. Barbano, J. McArt

Institutions: Cornell University, New York State College of Veterinary Medicine, New York State College of Agriculture & Life Sciences

Language: English

Topic: Spectroscopy and Chemometric Analyses

Subfield: Analytical Chemistry

Field: Chemistry

Domain: Physical Sciences

SDGs: Zero hunger, Good health and well-being

Open Access status: diamond

OpenAlex ID: W4396834054

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