Abstract
The crop sac response was determined in adult pigeons injected with either chicken hypothalamic extract (H.E.) or cortical extract for periods of up to 3 weeks. H.E.-injected pigeons showed substantial crop sac stimulation. The fine structure of adenohypophyseal prolactin cells was markedly different in the two groups, the H.E.-injected pigeons showing a strong resemblance to “lactating” control pigeons. The apparent discrepancy between the level of the crop sac response and the degree of activity in the pituitary prolactin cells is discussed.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
