Artículo
Effect of type and feeding frequency of high-fibre feeds on intake, total tract digestibility and ruminal fermentation in beef steers fed a high-concentrate diet
Lopez, A.; Coria, H. O.; Nazareno, Mónica Azucena
; García, Elisa Mariana
; Distel, Roberto Alejandro
; Arroquy, Jose Ignacio
Fecha de publicación:
10/2019
Editorial:
Csiro Publishing
Revista:
Animal Production Science
ISSN:
1836-5787
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
The inclusion of fibre in a total mixed ration (TMR) often has operational and economic constraints. The objective of the present study was to compare intake and ruminal fermentation of steers fed either a TMR or a diet with the fibre fraction fed separately from the concentrate fraction. Six ruminally fistulated steers were used in a six-treatments, four-period cross-over experiment. Treatment structure was a 3 × 2 factorial. The first factor was fibre delivery either as a part of a TMR or offered separately from the concentrate fraction once every 3 or 6 days. The second factor was represented by two fibre sources, namely, alfalfa hay or cotton by-products. Fibre delivery and source did not significantly affect total, concentrate, fibre and digestible dry-matter intake, compared with TMR. A similar response was observed for ruminal pH, ammonia concentration and total volatile fatty acid concentration. Intake of crude protein and fibre, as well as the concentration of total volatile fatty acids, were higher for alfalfa hay than for cotton by-products. In conclusion, feeding the fibre portion separately from the concentrate fraction once every 3 or 6 days did not negatively affect intake and rumen function compared with when a TMR was fed, regardless of fibre source.
Palabras clave:
CHOICE FEEDING
,
COTTON BY PRODUCT
,
FEEDLOT
,
FIBRE DELIVERY
,
RUMEN FUNCTION
Archivos asociados
Licencia
Identificadores
Colecciones
Articulos(SEDE CENTRAL)
Articulos de SEDE CENTRAL
Articulos de SEDE CENTRAL
Citación
Lopez, A.; Coria, H. O.; Nazareno, Mónica Azucena; García, Elisa Mariana; Distel, Roberto Alejandro; et al.; Effect of type and feeding frequency of high-fibre feeds on intake, total tract digestibility and ruminal fermentation in beef steers fed a high-concentrate diet; Csiro Publishing; Animal Production Science; 59; 12; 10-2019; 2245-2251
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