Source:http://linkedlifedata.com/resource/pubmed/id/15290979
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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
5
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pubmed:dateCreated |
2004-8-4
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pubmed:abstractText |
The dietary preference of lactating dairy cows grazing perennial ryegrass (Lolium perenne L.) and white clover (Trifolium repens L.) was studied. Twelve groups of 2 lactating, Holstein-Friesian dairy cows grazed 1.2-ha plots containing conterminal monocultures of clover and grass. Half of the groups grazed a plot containing 75% clover and 25% grass (by ground area), with the remaining groups grazing a plot containing 25% clover and 75% grass. The intake rates of clover were higher than those of grass, and intake rates were higher in the evening than in the morning. During daylight hours, clover formed 63.2% of the diet of the groups offered 25% clover, which was higher than the 25% offered but lower than preference for 100% clover. This indicated that cows showed a partial preference for clover, with an overall value (i.e., the mean of the 75% and 25% clover groups) of 73.8%. There was a diurnal pattern to preference, with a stronger preference for clover in the morning and with the preference for grass increasing during the day. The basis for partial preference remains unclear and warrants further research.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:status |
MEDLINE
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pubmed:month |
May
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pubmed:issn |
0022-0302
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
87
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
1317-24
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:15290979-Animals,
pubmed-meshheading:15290979-Behavior, Animal,
pubmed-meshheading:15290979-Cattle,
pubmed-meshheading:15290979-Circadian Rhythm,
pubmed-meshheading:15290979-Female,
pubmed-meshheading:15290979-Food Preferences,
pubmed-meshheading:15290979-Lolium,
pubmed-meshheading:15290979-Trifolium
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pubmed:year |
2004
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pubmed:articleTitle |
Dietary preference of dairy cows grazing ryegrass and white clover.
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pubmed:affiliation |
Institute of Grassland and Environmental Research, North Wyke, Okehampton, Devon, England, UK. mark.rutter@bbsrc.ac.uk
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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