Use of a synthetic GnRH analog to induce reproductive activity in canaries (Serinus canaria).
In this study, we evaluated the effects of a transcutaneously administered gonadotropin-releasing hormone analog (lecirelin) on the reproductive activity of the canary (Serinus canaria). Two groups of 20 pairs of canaries were treated with increasing concentrations of lecirelin delivered in a cream vehicle; one group was exposed to a natural photoperiod, and the other group received additional photostimulation. Two groups of 10 pairs of canaries served as controls; one group was exposed to an artificially lengthened photoperiod, and the other group was maintained under a natural photoperiod and treated with a nonmedicated cream vehicle. In all canaries treated with lecirelin, the onset of reproductive activity occurred significantly earlier than in either control group.
Robbe
Domenico
D
Department of Veterinary Clinical Science, University of Teramo, Viale Crispi, 212, I-64100, Teramo, Italy.
Todisco
Gianluca
G
Giammarino
Angelo
A
Pennelli
Massimiliano
M
Manera
Maurizio
M
D000279:Administration, Cutaneous; D000818:Animals; D002171:Canaries; D052284:Clutch Size; D005260:Female; D008297:Male; D009842:Oligopeptides / Q000008:administration & dosage* / Q000494:pharmacology; D017440:Photoperiod; D012098:Reproduction / Q000187:drug effects*
D009842:Oligopeptides; C533053:lecirelin