Linked Life Data

10342236

Source:http://linkedlifedata.com/resource/pubmed/id/10342236

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
5
pubmed:dateCreated
1999-6-10
pubmed:abstractText
The effect of drastic undernutrition was studied in Bos indicus cows. Four nonlactating cows (body weight = 208 kg) fitted with ruminal cannulas were used in a crossover design. They received, in two 1-mo periods, a diet of 80% rice straw and 20% cotton-seed meal fed either at energy maintenance [3.91 kg of dry matter (DM)/d] or at one-third of this intake (1.30 kg of DM/d). The variation in digestibility was studied in relation to particle retention time and microbial events. Organic matter digestibility decreased with underfeeding (64.5 and 53.7%, respectively, at high and low intakes) without modification of mean ruminal or total tract retention times. This lower digestibility can be related to a decrease in protozoal population in the rumen; however, other characteristics of microbial activity did not vary, such as in situ DM degradability (41.9 and 43.3%, respectively, at high and low intakes) and ruminal soluble Ca concentration, a factor involved in the attachment of microorganisms to feed particles. Mean size of ruminal particles was not modified, although more time spent chewing was observed at the low intake (165 and 221 min/kg of DM intake, respectively, at high and low intakes). This experiment confirms that, at intakes below maintenance, digestibility can decrease when feed intake is restricted, contrary to the general view described in the literature.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
May
pubmed:issn
0022-0302
pubmed:author
pubmed:issnType
Print
pubmed:volume
82
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
974-81
pubmed:dateRevised
2009-11-19
pubmed:meshHeading
pubmed:year
1999
pubmed:articleTitle
Effect of drastic undernutrition on digestion in Zebu cattle receiving a diet based on rice straw.
pubmed:affiliation
Centre International de Recherche-Développement sur l'Elevage en Zone Subhumide, Burkina Faso.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't