Examination of the male reproductive tract Flashcards
why?
Pre/post-purchase
Pre-mating
In response to a reproductive problem
Insurance certificates
reasons for bulls being unsound
Physically unsound
Below scrotal circumf. threshold
Poor semen quality
(Low serving capacity)
evaluating male fertility
Clinical history Physical examination Genital examination Interpretation of results Semen evaluation Mating ability/libido Other tests if required
clinical history
General animal info.
Past performance and illness/ lameness
Future use
physical exam
Abnormalities affecting animal now, & in future
Clinical significance of abnormalities
Conformation of Pastern joint and Hind limb
clinical exam
+/- TPR, full clinical examination
Feet
Body condition
Teeth
genital exam
External lesions of scrotum – Scrotal mange -rams, external wounds
Scrotal palpation - Systematic evaluation of contents, Consider size, tone/consistency, lesions/symmetry
testicular tone
Good indicator of sperm output and breeding soundness
“Flexed bicep” tone
lesions
Epididymo-orchitis or epididymitis Infectious, entering organs: Penetrating wounds Haematogenous Retrograde infection Iatrogenic (following vasectomy) Lesions of scrotal lymph node – Caseous lymphadenitis in rams
epididymititis
Does not resolve
Foreign body reaction