nXP
N
nXP NRC/CNCPS (американская система нормирования кормления скота) NRC Protein (Протеин NRC) NRC/CNCPS Nitrate NH3 (аммиачная) фракция NFC (Неволокнистые углеводы) NRC/CNCPS NEM (Чистая энергия поддержания) NRC/CNCPS NEM NEL (Чистая энергия лактации) NRC/CNCPS NEL NEG (Чистая энергия привеса) NRC/CNCPS NEG NDF(НДК) NRC/CNCPS NDF dig. Xh (НДК перевр. часы) NRC/CNCPS NDFnXP
nXP is a value originating from the german nutritional systems. It represents the quantity of digestible intestinal protein and as such it has a comparable function in the feed evaluation system as the dutch value DVE. The value is calculated by estimating the quantity of protein produced by the rumen (microbial protein, MP) and add it to the quantity of digestible bypass protein (UDP).
nXP=MP + UDP
Optimal:
Grass silage: > 140
Maize silage: > 130
Alfalfa silage: > 130
Whole crop silage: > 130
