[Effect of the administration of hypothalamic nonapeptides and their fragments on the hypothalamo-hypophyse-ovarian system in hens].
Single injection of hypothalamic nonapeptidae do not affect ovulation although they inhibit endocrine and reproductive functions of the hypothalamo-hypophyseal-ovarial system in hens. Repetitive injections of nonapeptides, on the contrary, enhance reproductive processes. This effect is due to the structure of the cyclic part of neurohormonal molecule.
D000818:Animals; D002645:Chickens; D005260:Female; D007028:Hypothalamic Hormones / Q000494:pharmacology*; D007030:Hypothalamo-Hypophyseal System / Q000187:drug effects*; D010053:Ovary / Q000187:drug effects*; D010058:Oviposition / Q000187:drug effects; D010060:Ovulation / Q000187:drug effects; D010121:Oxytocin / Q000494:pharmacology; D010446:Peptide Fragments / Q000494:pharmacology*; D013997:Time Factors; D014667:Vasopressins / Q000494:pharmacology; D014668:Vasotocin / Q000494:pharmacology
D007028:Hypothalamic Hormones; D010446:Peptide Fragments; D014667:Vasopressins; D010121:Oxytocin; D014668:Vasotocin
Vliianie vvedeniia gipotalamicheskikh nonapeptidov i ikh fragmentov na gipotalamo-gipofizarno-ovarial'nuiu sistemu kur.