Abstract
Ingestive behavior and body weight were measured in male and female ring doves given twice daily subcutaneous injections of ovine prolactin (7 mg/kg/day) or vehicle and in male doves given daily intracerebroventricular (ICV) injections of ovine prolactin at doses ranging from 0.1 to 2.0 μg/day. Changes induced by ICV administration of turkey prolactin, turkey growth hormone, ovine growth hormone, human growth hormone, and vehicle were also examined. Subcutaneous injections of ovine prolactin markedly increased food intake and body weight in both sexes. Similar effects occured in dose-related fashion in male doves given ICV injections of ovine prolactin. The three growth hormone preparations also increased feeding and body weight significantly, but turkey prolactin was ineffective in this regard. Changes in drinking generally paralleled feeding patterns but were less pronounced and may have been secondary to feeding changes. We conclude that feeding in this species is strongly stimulated by some prolactin and growth hormone preparations. However, the physiological mechanisms underlying these effects remain to be clarified.
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.
