Contraceptive effect and potential side-effects of deslorelin acetate implants in rats (Rattus norvegicus): preliminary observations

Grosset, Claire and Peters, Stijn and Peron, Franck and Figuéra, Joëlle and Navarro, Christelle (2012) Contraceptive effect and potential side-effects of deslorelin acetate implants in rats (Rattus norvegicus): preliminary observations. Canadian Journal of Veterinary Research, 76 (3). pp. 209-214. ISSN 0830-9000

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Item Type:Article
Item Status:Live Archive

Abstract

During the last ten years, numerous species have been treated with deslorelin implants to induce contraception. The aims of the study were 1) to assess contraceptive efficacy of 4.7 mg subcutaneous deslorelin implants in rats, 2) to determine the latency of contraceptive effect, and 3) to determine potential side effects. Three experimental females were implanted and their estrous cycle was studied by vaginal smear. Two weeks after implantation, a male whose fertility was previously assessed with a control female, was introduced into their cage. No female conceived during the 4 mo following implantation. Additionally, 38 pet rats were recruited from clients in practice to test for potential side effects, including 6 males and 32 females with a mean age of 14 mo. Local reaction and transient weight gain during the first 2 wk, as well as behavioral changes were recorded. According to this pilot study, deslorelin implant could be used as a contraceptive method in female rats. The latency period is about 2 wk. Nevertheless, it might be possible to refine the treatment further using hormonal measurements. The duration of contraceptive effect is to be determined in an upcoming study.

Additional Information:PMCID:PMC3384284
Keywords:deslorelin, animal cell, animal experiment, article, behavior change, contraception, controlled study, drug effect, estrus, female, implant, latent period, male, male fertility, nonhuman, pilot study, rat, vagina smear, weight gain, Rattus, Rattus norvegicus
Subjects:D Veterinary Sciences, Agriculture and related subjects > D300 Animal Science
Divisions:College of Science > School of Life Sciences
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ID Code:9439
Deposited On:20 May 2013 16:55

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