Measurement of testicular volume in Wistar rats using a caliper and ultrasonography in experimental surgery.

Purpose: To compare the measurement of the testicular volume of Wistar rats using a caliper and ultrasonography.

Methods: Forty Wistar rats were randomly assigned into four groups. A tensile force of 1.

Effects of traction on the spermatic cord of rats.

Purpose: To determine whether tension in the spermatic cord of rats causes lesions in the testis, epididymis or vas deferens.

Methods: Forty Wistar rats were randomly allocated into four groups. A traction force of 1.