The
CNCPS system classifies ruminal microorganisms into two large groups: fiber carbohydrate fermenting bacteria, which use ammonia as the source of N, and non-fiber carbohydrate fermenting bacteria, which use either ammonia or amino acids or peptides as a source of N.
NNP is an integral part of A fraction, or also considered as readily digestible by ruminants (
CNCPS, 2002).
Estimacion de los requerimientos nutricionales mediante el modelo
CNCPSEn el
CNCPS, las predicciones de requerimientos para ganado bovino, se modificaron para usarse en ovinos [10] (CNCPS-S), prediciendo las necesidades energeticas con enfasis en la lactacion.
In grain and dried distiller grains with solubles [7,29] reported that FT/IR total carbohydrate, structural carbohydrate, NSCHO and lignin correlated with different
CNCPS carbohydrate fractions and ruminal and intestinal nutrient availability in cattle.
Estimates of the Milk Production by Crossbred Holstein Cows, in Accordance to
CNCPS System, in Diets Containing Sugar Cane with Different Nutritive Values.
The five experimental diets were formulated using the RLM[R] software (Esalq/USP), with nutritional demands estimated by the
CNCPS system (Fox et al., 1992) with the aim of maximum weight gain (Table 1).
Las caracteristicas del componente nitrogenado (Tabla 7) del residuo M2 muestran que alrededor del 21% del nitrogeno es soluble, constituyendo las fracciones A y B1 del sistema
CNCPS (16).
Com relacao a taxa de degradacao da FDN, os resultados mostram, para esse parametro, estimativas em torno de 4,0%/h, as quais estao dentro da faixa sugerida pelo
CNCPS, entre 3,0% e 8,1% [h.sup.-1], para plantas tropicais.
The beef National Research Council (NRC) (2000) level II and the Cornell Net Carbohydrate and Protein System (
CNCPS 4.0) (Fox et al., 2000) break down each feedstuff's carbohydrate into four fractions (Table 6-2).
Different nutrient requirement models use different metabolizable protein (MP) efficiencies for prediction of protein requirements in lactating dairy cows e.g., NRC [10] model proposes an MP efficiency of 0.67, which is higher than INRA [11] and Cornell Net Carbohydrate and Protein System (
CNCPS) 5.0 [12] that propose 0.64 and 0.65, respectively.