Please use this identifier to cite or link to this item: http://hdl.handle.net/2440/97355
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Type: Journal article
Title: Diurnal changes in water-soluble carbohydrate concentration in lucerne and tall fescue in autumn and the effects on in vitro fermentation
Author: Cajarville, C.
Britos, A.
Errandonea, N.
Gutiérrez, L.
Cozzolino, D.
Repetto, J.
Citation: New Zealand Journal of Agricultural Research, 2015; 58(3):281-291
Publisher: Royal Society of New Zealand
Issue Date: 2015
ISSN: 0028-8233
1175-8775
Statement of
Responsibility: 
C Cajarville, A Britos, N Errandonea, L Gutiérrez, D Cozzolino and JL Repetto
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.
Keywords: Festuca arundinacea; harvesting time; Medicago sativa; ruminal fermentation; sugars
Description: Published online: 09 Jun 2015
Rights: © 2015 The Royal Society of New Zealand
RMID: 0030030963
DOI: 10.1080/00288233.2015.1018391
Appears in Collections:Agriculture, Food and Wine publications

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