Particle size distribution and chemical composition of total mixed rations for dairy cattle: Water addition and feed sampling effects

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AudienciaPúblico en generales_ES
CoberturaMéxicoes_ES
Fecha de ingreso2026-10-05T16:33:03Z
Fecha de publicación2010-01-01
ResumenFour dairy farms were used to determine the effects of water addition to diets and sample collection location on the particle size distribution and chemical composition of total mixed rations (TMR). Samples were collected weekly from the mixing wagon and from 3 locations in the feed bunk (top, middle, and bottom) for 5 mo (April, May, July, August, and October). Samples were partially dried to determine the effect of moisture on particle size distribution. Particle size distribution was measured using the Penn State Particle Size Separator. Crude protein, neutral detergent fiber, and acid detergent fiber contents were also analyzed. Particle fractions 19 to 8, 8 to 1.18, and < 1.18 mm were judged adequate in all TMR for rumen function and milk yield; however, the percentage of material > 19 mm was greater than recommended for TMR, according to the guidelines of Cooperative Extension of Pennsylvania State University. The particle size distribution in April differed from that in October, but intermediate months (May, July, and August) had similar particle size distributions. Samples from the bottom of the feed bunk had the highest percentage of particles retained on the 19-mm sieve. Samples from the top and middle of the feed bunk were similar to that from the mixing wagon. Higher percentages of particles were retained on > 19, 19 to 8, and 8 to 1.18 mm sieves for wet than dried samples. The reverse was found for particles passing the 1.18-mm sieve. Mean particle size was higher for wet than dried samples. The crude protein, neutral detergent fiber, and acid detergent fiber contents of TMR varied with month of sampling (18-21, 40-57, and 21-34\%, respectively) but were within recommended ranges for high-yielding dairy cows. Analyses of TMR particle size distributions are useful for proper feed bunk management and formulation of diets that maintain rumen function and maximize milk production and quality. Water addition may help reduce dust associated with feeding TMR.es_ES
Doihttps://doi.org/10.3168/jds.2009-2952es_ES
URIhttps://riuat.uat.edu.mx/handle/123456789/4894
Idiomaenes_ES
EditorialELSEVIER SCIENCE INCes_ES
RelaciónJournal of Dairy Sciencees_ES
URL relacionadohttps://doi.org/10.3168/jds.2009-2952es_ES
DerechosAcceso abierto (Metadatos de producción científica)es_ES
Licenciahttp://purl.org/coar/access_right/c_abf2es_ES
FuenteJournal of Dairy Science
Palabra clavedairy cowes_ES
Palabra claverationes_ES
Palabra claveparticle sizees_ES
Palabra clavefeed bunkes_ES
TítuloParticle size distribution and chemical composition of total mixed rations for dairy cattle: Water addition and feed sampling effectses_ES
TipoArtículoes_ES
ArbitradoHa sido Arbitradoes_ES
AutorArzola-Alvarez, C.
AutorBocanegra-Viezca, J. A.
AutorMurphy, M. R.
AutorSalinas-Chavira, J.
AutorCorral-Luna, A.
AutorRomanos, A.
AutorRuiz-Barrera, O.
AutorRodriguez-Muela, C.
AutorArzola-Alvarez, C.es_ES
AutorBocanegra-Viezca, J. A.es_ES
AutorMurphy, M. R.es_ES
AutorSalinas-Chavira, J.es_ES
AutorCorral-Luna, A.es_ES
AutorRomanos, A.es_ES
AutorRuiz-Barrera, O.es_ES
AutorRodriguez-Muela, C.es_ES
InstituciónUniversidad Autónoma de Tamaulipas
InstituciónUniversidad Autónoma de Tamaulipases_ES
Número9es_ES
Rango de páginas4180-4188es_ES
URL relacionadahttps://doi.org/10.3168/jds.2009-2952
Tipo de artículoIndexado
Tipo de artículoIndexadoes_ES
Volumen93es_ES

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