Mv. Root et al., THE EFFECT OF PREPUBERAL AND POSTPUBERAL GONADECTOMY ON PENILE EXTRUSION AND URETHRAL DIAMETER IN THE DOMESTIC CAT, Veterinary radiology & ultrasound, 37(5), 1996, pp. 363-366
Male (n = 6/group) and female (n = 6/group) kittens were gonadectomize
d at 7 weeks or 7 months of age, or left intact, At 22 months of age,
complete penile extrusion was possible in all of the intact males, in
3/5 (60%) males castrated at 7 months of age, and in none of the males
castrated at 7 weeks of age, Antegrade (voiding) cystourethrograms we
re performed at 22 months of age, Diameter of the preprostatic (p = 0.
13) and penile (p > 0.25) urethra of male cats did not vary by group,
Diameter of the pre-pelvic urethra of female cats gonadectomized at 7
weeks of age was significantly smaller than that of intact females (p
= 0.02).