NUE	Nitrogen use efficiency
DM	Dry matter
DMI	Dry matter intake
TMR	Total mixed ration
EE	Ether extract
NDF	Neutral detergent fiber
ADF	Acid detergent fiber
GE	Gross energy
NEL	Net energy for lactation
RUP	Rumen-undegradable protein
MCP	Microbial crude protein
VFA	Volatile fatty acid
NH3-N	Ammonia nitrogen
SCC	Somatic cell count
SEM	Standard error of the mean
EAA	Essential amino acid
NEAA	Non-essential amino acid
AA	Amino acids
Arg	Arginine
His	Histidine
Ile	Isoleucine
Leu	Leucine
Lys	Lysine
Met	Methionine
Phe	Phenylalanine
Thr	Threonine
Val	Valine
Ala	Alanine
Asp	Aspartic acid
Cys	Cysteine
Glu	Glutamic acid
Gly	Glycine
Pro	Proline
Ser	Serine
Tyr	Tyrosine