Male genital organs - Scrotum, testicles and vas deferens

MALE GENITAL ORGANS
( Scrotum, Testicles,Vas Deferens)

(Click and view the image of "Male genitalia of fowl")

Scrotum

  • It is a diverticulum of the abdomen
  • Bulls : Present in front of inguinal region and lodges the testicles and its appendages. It is oval in form and slightly compressed
  • Stallion : It is in the inguinal region. It is globular in shape
  • Dog : Behind the inguinal region, skin of scrotum is pigmented
  • Cock : Absent

Testicles  Schematic diagram of testis and scrotum

  • Bull : Two, oval, slightly compressed. Long axis is vertical. Epididymis is on posterior border with head, body and tail
  • Stallion : Smaller but globular, long axis is parallel to the long axis of body. The epididymis is on the dorsal border
  • Dog : Small and oval, suspended in oblique direction. Epididymis is along the dorsal border
  • Cock : The two bean shaped testicles lie ventral to the anterior lobes of kidneys in body cavity. Epididymis does not show 3 parts

Ductus deferens

  • Bull : It has initial coiled portion followed by straight portion which forms posterior part of spermatic cord and it shows enlargement – ampulla near urethra. Ductus deferens and seminal vesicles open separately on colliculus seminalis
  • Stallion : Seminal vesicles and ductus deferens open on a common ejaculatory orifice
  • Dog : Ampullae are narrow
  • Cock : Ductus deferens is extremely tortuous and opens into urodeum lateral to the opening of the ureter
Last modified: Thursday, 9 February 2012, 10:21 AM