Pinhole castration technique: an alternative to orchiectomy in stray dogs.

The study evaluates a pinhole castration technique in male stray dogs. Animals (n=18) were randomly allotted to 2 groups: group I (n=12, pinhole castration) and group II (n=6, sham control). Percutaneous (in situ) spermatic cord ligation was performed under xylazine-ketamine anesthesia in all animals of group I. Scrotal and the testicular dimensions and testicular volume were measured on day 28 followed by bilateral orchiectomy in both the groups. Significantly lower readings were obtained from animals of group I when compared with pre-ligation readings as well as the corresponding readings from group II animals. In ligated animals volume of testicles showed a reduction by 40.57%. Histopathological examination of testicles revealed degeneration and atrophy in Group I animals. On the whole pinhole castration was found effective, minimally invasive, cheap, simple and a quick technique for male dog sterilization with potential for adoption in large-scale animal birth control programs.