Intracranial prolactin perfusion induces incubation behavior in turkey hens

O. M. Youngren, M E Elhalawani, J. L. Silsby, R. E. Phillips

Research output: Contribution to journalArticlepeer-review

49 Scopus citations


Intracranial perfusion of ovine prolactin (oPrl) via osmotic pump in laying turkey hens caused a sudden onset in incubation behavior, defined as an increase in nest visits. The hens also displayed a gradual decrease in egg laying during the time they were receiving oPrl, another indicator of the onset of incubation. Circulating immunoreactive turkey Prl levels fell during the perfusion period, even though the hens were displaying persistent nesting activity and reduced egg laying. No effects on serum LH were noted. Perfusion of oPrl during the first 14 days of photostimulation delayed the onset of egg laying by several days. No effects on serum Prl or serum LH were noted. It is suggested that incubation behavior is facilitated by central levels of Prl.

Original languageEnglish (US)
Pages (from-to)425-431
Number of pages7
JournalBiology of reproduction
Issue number3
StatePublished - 1991


Dive into the research topics of 'Intracranial prolactin perfusion induces incubation behavior in turkey hens'. Together they form a unique fingerprint.

Cite this