Linked Life Data

9921036

Source:http://linkedlifedata.com/resource/pubmed/id/9921036

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
5
pubmed:dateCreated
1999-3-5
pubmed:abstractText
Melatonin, synthetized by the pineal gland, is the chemical messenger which allows seasonally reproductive animals to perceive day length changes. In the ewe, the neural message, transformed into a hormonal one, triggers pulsatile activity of the LHRH neurons. About 40 days are necessary for melatonin to centrally stimulate the pulsatile LHRH activity. Its sites and mode of action are not yet known completely, but a precise hypothalamic zone has been defined in which radioactive melatonin binds specifically and where cold melatonin delivered locally stimulates LHRH activity. In the veterinary clinic, the most frequent mode of distribution is a sub-cutaneous implant, which induces an advancement of the cyclical ovulatory activity of ewes and goats. The date of fertilization is advanced and fecundity of females is improved. It can be used alone, or in association with other hormonal treatments, or after an artificial photoperiodic treatment. Under these conditions, it allows a quantitative and qualitative increase in out-of-season sperm production in rams and billy-goats. Such an implant is registered and marketed in France, the UK, Greece, Australia and New Zealand.
pubmed:language
fre
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
0040-5957
pubmed:author
pubmed:issnType
Print
pubmed:volume
53
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
445-52
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:articleTitle
[Melatonin and reproduction in domestic farm animals].
pubmed:affiliation
INRA/CNRS Neuroendocrinologie Sexuelle, Station de Physiologie de la Reproduction des Mammiferes Domestiques, Nouzilly, France.
pubmed:publicationType
Journal Article, English Abstract, Review