Diurnal changes in water-soluble carbohydrate concentration in lucerne and tall fescue in autumn and the effects on in vitro fermentation

Cajarville, C, Britos, A, Errandonea, N, Gutierrez, L, Cozzolino, D and Repetto, J 2015, 'Diurnal changes in water-soluble carbohydrate concentration in lucerne and tall fescue in autumn and the effects on in vitro fermentation', New Zealand Journal of Agricultural Research, vol. 58, no. 3, pp. 281-291.


Document type: Journal Article
Collection: Journal Articles

Title Diurnal changes in water-soluble carbohydrate concentration in lucerne and tall fescue in autumn and the effects on in vitro fermentation
Author(s) Cajarville, C
Britos, A
Errandonea, N
Gutierrez, L
Cozzolino, D
Repetto, J
Year 2015
Journal name New Zealand Journal of Agricultural Research
Volume number 58
Issue number 3
Start page 281
End page 291
Total pages 11
Publisher Taylor & Francis Asia Pacific (Singapore)
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.
Subject Quality Assurance, Chemometrics, Traceability and Metrological Chemistry
Keyword(s) Festuca arundinacea
harvesting time
Medicago sativa
ruminal fermentation
sugars
DOI - identifier 10.1080/00288233.2015.1018391
Copyright notice © 2015 The Royal Society of New Zealand
ISSN 0028-8233
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