Reproductive evaluation of male beagles and the safety of ivermectin |
| |
Authors: | C P Daurio M R Gilman J D Pulliam R L Seward |
| |
Institution: | Merck, Sharp & Dohme Research Laboratories, Rahway, NJ 07065-0914. |
| |
Abstract: | Ivermectin had no adverse effects on spermatogenesis, fertility, or reproductive performance of Beagle dogs when administered orally at 600 micrograms/kg (0.6 mg/kg) of body weight monthly for 8 treatments. Semen was collected every 3 days from 28 days before treatment began until 83 days thereafter from 6 ivermectin-treated Beagles and 6 similar water-treated controls (38 collections/dog). All dogs were then bred to 2 nontreated bitches each; litter size, birth weights, and pup abnormalities and mortalities were evaluated. After all pups were whelped, each dog was euthanatized and necropsied, and the testis and epididymis were examined microscopically. |
| |
Keywords: | |
|
|