The Visual Guide to
Ovine Reproduction
Male Reproductive System: Scrotum
Normal Scrotum.
A normal scrotum is bilaterally symmetrical. The scrotum is covered by normal dirt and lanolin secretions.
Smith MC (2006)
Rambouillet Scrotum.
The scrotum of a Rambouillet is covered with wool.
Smith MC (2006)
Examination of the Scrotum.
The scrotum itself is examined for lesions, and the testicles for symmetry. The testicles should slide freely up and down within the scrotum, and should be firm but resilient.
Smith MC (2006)
Scrotal Circumference.
Scrotal circumference reflects testicular size. The size of the testes correlates directly with sperm output. During the nonbreeding season the circumference is often 2 to 3 cm smaller.
Smith MC (2006)
Testicular Size.
Scrotal circumference (SC) reflects testicular size. The size of the testes correlates directly with sperm output. In a ram lamb > 22 kg, the SC should be > 30 cm; in a yearling ram lamb, 12 to 18 months of age, > 33 cm; in a mature ram > 36 cm.
Smith MC (2006)
Scrotal Hernia.
When an inguinal ring is too large intestinal loops may herniate into the scrotum. Sperm production is impaired by the elevated temperature. The condition is hereditary so the ram and his siblings should not be used for breeding.
Smith MC (2006)
Scrotal Hernia.
Scrotal hernia of the right side of the scrotum in a 2-year old FinnDorset ram. He was off feed for 2 days due to pain.
Smith MC (2013)
Scrotal Hernia.
Scrotal hernia of the right side of the scrotum in a 2-year old FinnDorset ram. He was off feed for 2 days due to pain.
Smith MC (2013)
Sucked Prepuce and Scrotum.
Trauma to the scrotum and prepuce caused by sucking by another lamb.
Smith MC (2006)