Journal ArticleDOI
A net carbohydrate and protein system for evaluating cattle diets: II. Carbohydrate and protein availability.
Charles J. Sniffen,J D O'Connor,P.J. Van Soest,Danny G. Fox,James B. Russell,James B. Russell,James B. Russell +6 more
TLDR
The Cornell Net Carbohydrate and Protein System has a submodel that predicts rates of feedstuff degradation in the rumen, the passage of undegraded feed to the lower gut, and the amount of ME and protein that is available to the animal.Abstract:
The Cornell Net Carbohydrate and Protein System (CNCPS) has a submodel that predicts rates of feedstuff degradation in the rumen, the passage of undegraded feed to the lower gut, and the amount of ME and protein that is available to the animal. In the CNCPS, structural carbohydrate (SC) and nonstructural carbohydrate (NSC) are estimated from sequential NDF analyses of the feed. Data from the literature are used to predict fractional rates of SC and NSC degradation. Crude protein is partitioned into five fractions. Fraction A is NPN, which is trichloroacetic (TCA) acid-soluble N. Unavailable or protein bound to cell wall (Fraction C) is derived from acid detergent insoluble nitrogen (ADIP), and slowly degraded true protein (Fraction B3) is neutral detergent insoluble nitrogen (NDIP) minus Fraction C. Rapidly degraded true protein (Fraction B1) is TCA-precipitable protein from the buffer-soluble protein minus NPN. True protein with an intermediate degradation rate (Fraction B2) is the remaining N. Protein degradation rates are estimated by an in vitro procedure that uses Streptomyces griseus protease, and a curve-peeling technique is used to identify rates for each fraction. The amount of carbohydrate or N that is digested in the rumen is determined by the relative rates of degradation and passage. Ruminal passage rates are a function of DMI, particle size, bulk density, and the type of feed that is consumed (e.g., forage vs cereal grain).read more
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Palma forrageira enriquecida com uréia em substituição ao feno de capim-tifton 85 em rações para vacas da raça Holandesa em lactação
Carmem Valéria de Araújo Cavalcanti,Marcelo de Andrade Ferreira,Mauriceia Costa Carvalho,Antonia Sherlânea Chaves Véras,Fabiana Maria da Silva,Luiz Evandro de Lima +5 more
TL;DR: Nonfiber carbohydrates and total digestible nutrients intakes, feed efficiency, milk production and 3,5% fat corrected the milk production increased, while neutral detergent fiber and water intakes linearly decreased with the inclusion of spineless cactus and urea in the diet.
Journal ArticleDOI
Usage of xylose or glucose as non-enzymatic browning agent for reducing ruminal protein degradation of soybean meal
TL;DR: In this article, two in situ trials with three ruminally cannulated Akkaraman rams were conducted to evaluate nonenzymatic browning on ruminal protein degradation of soybean meal (SBM).
Journal ArticleDOI
Supplementation for beef cattle on Marandu grass pastures with different herbage allowances
A. P. de Oliveira,Daniel Rume Casagrande,L. M. A. Bertipaglia,Rondineli Pavezzi Barbero,Telma Teresinha Berchielli,Ana Cláudia Ruggieri,Ricardo Andrade Reis +6 more
TL;DR: The supplements in the diet of beef heifers fed at 0.3% of bodyweight increased bodyweight gains without compromising the gain per hectare at different herbage allowances, and the energy/protein supplementation provided the greatest average daily gain.
Journal ArticleDOI
Fermentative and bromatological characteristics of Piata palisadegrass ensiled with levels of meals from biodiesel industry
Patrícia Soares Epifanio,Kátia Aparecida de Pinho Costa,Eduardo da Costa Severiano,Welma Santos Cruvinel,José Carlos Bento,Rozana Castro Perim +5 more
TL;DR: Os resultados demonstraram that os farelos da industria do biodiesel pode ser indicado como aditivos para a ensilagem, por trazer melhorias nas caracteristicas fermentativas, qualitativas e nutricionais da silagem de capim-piata.
Journal ArticleDOI
Valor nutritivo de dietas contendo torta de mamona submetida a métodos alternativos de destoxificação para ovinos
R. N. Furtado,Maria Socorro de Souza Carneiro,M. J. D. Cândido,F. H. T. Gomes,Elzania Sales Pereira,Roberto Cláudio Fernandes Franco Pompeu,Weberte Alan Sombra +6 more
TL;DR: In this paper, feed intake and digestibility were evaluated in sheep fed diets containing castor bean cake with no treatment (NT), treated with calcium carbonate (CC), urea (UR), phosphate monodicalcium (FOS) and autoclave (ACL).
References
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Journal ArticleDOI
Methods for dietary fiber, neutral detergent fiber, and nonstarch polysaccharides in relation to animal nutrition.
TL;DR: In addition to NDF, new improved methods for total dietary fiber and nonstarch polysaccharides including pectin and beta-glucans now are available and are also of interest in rumen fermentation.
Forage fiber analyses (apparatus, reagents, prcedures, and some applications)
H.K. Goering,P.J. Van Soest +1 more
Journal ArticleDOI
A net carbohydrate and protein system for evaluating cattle diets: I. Ruminal fermentation.
TL;DR: The Cornell Net Carbohydrate and Protein System (CNCPS) has a kinetic submodel that predicts ruminal fermentation and the protein-sparing effect of ionophores is accommodated by decreasing the rate of peptide uptake by 34%.