ADF	acid detergent fiber
ADL	acid detergent lignin
ANOVA	analysis of variance
AOAC	association of official analytical chemists
EHAF	ensiled and haylage forage
EMAG	ensiled maize and grass
DIM	days in milk
DM	dry matter
DVB/CAR/PDMS	divinylbenzene/carboxen/polydimethylsiloxane
FA	fatty acid
FID	flame ionization detector
FPCM	fat protein corrected milk
FS	feeding system
FT-MIR	Fourier-transform mid infrared
GC	gas chromatography
GC-FID	gas chromatography-flame ionization detection
β-HB	β-hydroxybutyrate
HS-SPME	headspace solid-phase microextraction
iPCA	interactive principal component analysis
IRMS	isotope ratio mass spectrometry
LC/MS	liquid chromatography/mass spectrometry
MAGH	meadow and grass hay
aNDF	(amylase) neutral detergent fiber
NFC	non-fiber carbohydrates
NIST	National Institute of Standards and Technology
NMR	nuclear magnetic resonance
PC	principal component
PDO	protected designation of origin
PTFE	polytetrafluoroethylene
RMSE	root mean square error
RTL	retention time locked
S	season
SCC	somatic cell count
SCS	somatic cell score
TMR	total mixed ration
VOC	volatile organic compound