Predicting blood β-hydroxybutyrate using milk Fourier transform infrared spectrum, milk composition, and producer-reported variables with multiple linear regression, partial least squares regression, and artificial neural network

Journal of Dairy Science
R S PralleH M White

Abstract

Prediction of postpartum hyperketonemia (HYK) using Fourier transform infrared (FTIR) spectrometry analysis could be a practical diagnostic option for farms because these data are now available from routine milk analysis during Dairy Herd Improvement testing. The objectives of this study were to (1) develop and evaluate blood β-hydroxybutyrate (BHB) prediction models using multivariate linear regression (MLR), partial least squares regression (PLS), and artificial neural network (ANN) methods and (2) evaluate whether milk FTIR spectrum (mFTIR)-based models are improved with the inclusion of test-day variables (mTest; milk composition and producer-reported data). Paired blood and milk samples were collected from multiparous cows 5 to 18 d postpartum at 3 Wisconsin farms (3,629 observations from 1,013 cows). Blood BHB concentration was determined by a Precision Xtra meter (Abbot Diabetes Care, Alameda, CA), and milk samples were analyzed by a privately owned laboratory (AgSource, Menomonie, WI) for components and FTIR spectrum absorbance. Producer-recorded variables were extracted from farm management software. A blood BHB ≥1.2 mmol/L was considered HYK. The data set was divided into a training set (n = 3,020) and an external tes...Continue Reading

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Citations

Sep 10, 2019·Journal of Dairy Science·P N HoJ E Pryce
Sep 16, 2019·Journal of Dairy Science·A BenedetM De Marchi
Feb 14, 2020·Animals : an Open Access Journal From MDPI·Anna BenedetMassimo De Marchi
Dec 31, 2018·Journal of Dairy Science·T D W LukeJ E Pryce
Aug 9, 2020·Methods : a Companion to Methods in Enzymology·C GreletF Dehareng
Feb 13, 2021·Animals : an Open Access Journal From MDPI·Luciano S Caixeta, Bobwealth O Omontese
Mar 6, 2021·Journal of Dairy Science·Allison E QuickKent A Weigel
May 6, 2021·Animals : an Open Access Journal From MDPI·Ryan S PralleHeather M White
Jun 3, 2021·Animals : an Open Access Journal From MDPI·Anna Mareike CouperusJohannes R Peham

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