Fecha/hora: 04/06/2024 03:17:04

Biblioteca(s): | INIA Las Brujas.
Fecha corriente: | 20/11/2015
Fecha de la última actualización: | 09/10/2019
Autoria: | CAJARVILLE, C.; BRITOS, A.; ERRANDONEA, N.; GUTIÉRREZ, L.; COZZOLINO, D.; REPETTO, J.L.
Afiliación: | DANIEL COZZOLINO GÓMEZ, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay.
Título: | Diurnal changes in water-soluble carbohydrate concentration in lucerne and tall fescue in autumn and the effects on in vitro fermentation.
Complemento del título: | Research Article.
Año de publicación: | 2015
Fuente/Imprenta: | New Zealand Journal of Agricultural Research, 2015, v. 58, no.3, p. 281-291.
ISSN: | 0028-8233 (Print) / 1175-8775 (Online)
DOI: | 10.1080/00288233.2015.1018391
Idioma: | Inglés
Notas: | Article history: Received 23 January 2014 // Accepted 5 February 2015.

Contenido:

ABSTRACT.

The aim of the experiment was to study diurnal variation in water-soluble carbohydrate (WSC) concentrations in leaf and stem of tall fescue and lucerne in autumn and to determine the impact of these changes on the rate and the extent of in vitro fermentation. Vegetative herbage of lucerne and tall fescue were sampled at 0900, 1300 and 1700 h, following three consecutive regrowths between April and May. Whole plants, leaf and stem were analysed for chemical composition and in vitro gas production. There was a linear increase in WSC throughout the day for all plants and plant components (P < 0.001). In both fescue and lucerne, this rise resulted in an increased rate of gas production, although this relationship was more pronounced in fescue. Use of time of day to govern grazing management decisions to potentially improve the rumen supply of WSC and nitrogen in autumn can be achieved from tall fescue or lucerne pastures.
© 2015 The Royal Society of New Zealand

Palabras-Clave: | HARVESTING TIME; RUMINAL FERMENTATION; SUGARS.
Thesagro: | FESTUCA ARUNDINACEA; MEDICAGO SATIVA.
Categoría del tema: | --
Registro original: | INIA Las Brujas (LB)
Ejemplares: | LB - (100854-1) - PXI - AP - DD - PP/NZJAR/2015 -  -  - DIS