Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
11
pubmed:dateCreated
1991-5-21
pubmed:abstractText
An experiment was conducted to determine the influence of dietary Ca (2, 4, and 6%) and P (.3 and .6% total) on urinary Ca and pH and on plasma Ca++ and inorganic P (Pi) in commercial Leghorn hens. Urine (six hens per treatment) or blood (eight hens per treatment) was collected from hens at 0, 7, 14, and 21 h postoviposition on Days 3 and 10 after its introduction to treatment diets. Low dietary P reduced (P less than or equal to .05) plasma Pi concentrations. The lowest concentration of dietary Ca reduced (P less than or equal to .05) plasma Ca++. Urinary pH and Ca were lowest at 14 h after oviposition. Increasing dietary Ca from 4 to 6% had no influence on urinary Ca excretion when the diet contained .6% P. However, when the diet contained 4% Ca, lowering dietary P (from .6% to .3%) increased urinary Ca significantly. Increasing dietary Ca to 6% in the presence of low dietary P further elevated urinary Ca. Urine was acidic with all diets except with that containing 6% Ca and .3% P at 14 h after oviposition. Results indicate that low dietary P has a greater influence on elevating urinary Ca in laying hens than excess dietary Ca.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Nov
pubmed:issn
0032-5791
pubmed:author
pubmed:issnType
Print
pubmed:volume
69
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1991-7
pubmed:dateRevised
2003-11-14
pubmed:meshHeading
pubmed:year
1990
pubmed:articleTitle
Influence of dietary calcium and phosphorus on urinary calcium in commercial leghorn hens.
pubmed:affiliation
Department of Poultry Science, Auburn University, Alabama 36849.
pubmed:publicationType
Journal Article