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Title

Herbage intake by Churra ewes grazing at two different sward heights

AuthorsValdés, Carmen ; Mantecón, Ángel R. ; Giráldez, Francisco Javier ; Fernández Bermúdez, Florentino
KeywordsSheep
Pastures
Grazing
Intake
Issue Date1995
PublisherPolish Academy of Sciences
CitationJournal of Animal and Feed Sciences 4: 1-9 (1995)
AbstractHerbage intake and some characteristics of diet selected by grazing Churra ewes were studied on two plots of a Lolium-Festuca- Trifolium pasture maintained at two different sward heights (sward heights (SH): 4 cm (SSH) and 8 cm (HSH) in two periods (PE): summer and autumn. Herbage intake was estimated from measurements of faecal output and of digestibility of extrusa samples. With the exception of crude protein content, no significant (P≤0.05) effects of PE nor SH were detected in the chemical composition and digestibility of herbage on offer. Daily herbage intake (g OM/kg live weight) was greater (P≤0.10) on HSH than on SSH and was also greater (P≤0.05) in autumn than in summer. Significant effects of PE (P≤0.01) and SH (P≤0.05) were obtained in the selection ratios (calculated as the content of each considerate component in extrusa samples divided by its content in the herbage on offer) for alI chemical fractions and for digestibility. Except for cellulose, interaction between main factors had a significant (P≤0.001) effect on the selection ratios.
Description9 pages, 3 tables.
Publisher version (URL)http://www.ifzz.pl/fusion_jafs/vol%204%20no%201.pdf
URIhttp://hdl.handle.net/10261/13188
ISSN1230-1388
Appears in Collections:(IGM) Artículos
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