Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1 Pt 2
pubmed:dateCreated
1989-2-23
pubmed:abstractText
The influence of the reproductive cycle on ingestive behaviors, osmotically induced fluid intake, and peripheral blood levels of several hormones involved in fluid electrolyte balance was investigated in young adult female pigs. Food, water, and salt intakes and plasma aldosterone levels were significantly lower during estrus compared with the luteal and follicular phases, whereas plasma sodium (PNa) was higher. Plasma renin activity and lysine vasopressin (LVP) levels did not vary with the cycle. Regression analyses of the relationship between plasma LVP and PNa in unanesthetized, unstressed animals infused for 2 h with intravenous 5% NaCl revealed no significant differences in terms of the osmotic threshold and sensitivity of LVP release at different stages of the reproductive cycle. In contrast, when osmotic loading was carried out with continuous access to water, the osmotic threshold for drinking was found to be significantly higher and the rate of drinking lower during estrus. The results indicate that in the adult female pig the stage of the reproductive cycle has an influence on ingestive behaviors and the osmoregulation of thirst. Osmoregulation of vasopressin secretion, on the other hand, appears to be independent of the estrous cycle in this species.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jan
pubmed:issn
0002-9513
pubmed:author
pubmed:issnType
Print
pubmed:volume
256
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
R270-5
pubmed:dateRevised
2009-11-19
pubmed:meshHeading
pubmed:year
1989
pubmed:articleTitle
Osmoregulation of vasopressin secretion and thirst during the estrous cycle of pigs.
pubmed:affiliation
University of Ottawa, Loeb Institute of Medical Research, Ottawa Civic Hospital, Ontario, Canada.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't