Energy profiling of dairy cows from routine milk mid-infrared analysis

• Published in: Journal of dairy science Vol. 102; no. 12; pp. 11169 - 11179
• Main Authors: Smith, S.L., Denholm, S.J., Coffey, M.P., Wall, E.
• Format: Journal Article
• Language: English
• Published: United States Elsevier Inc 01.12.2019
• Subjects: animal husbandry; animal tests; Animals; Cattle - metabolism; dairy cow; dairy cows; dairy herds; data collection; energy balance; Energy Intake; Energy Metabolism; equations; farms; Female; Fertility; genetic analysis; genetic improvement; genetics; heritability; Holstein; Lactation; least squares; Least-Squares Analysis; mid-infrared spectroscopy; milk; Milk - chemistry; Phenotype; prediction; Scotland; spectral analysis; Spectrophotometry, Infrared - veterinary; spectroscopy; Scotland; mid-infrared spectroscopy; energy balance; dairy cow; genetics

The balance of body energy within and across lactations can have health and fertility consequences for the dairy cow. This study aimed to create a large calibration data set of dairy cow body energy traits across the cow's productive life, with concurrent milk mid-infrared (MIR) spectral data,...