Page 1026 - Small Animal Internal Medicine, 6th Edition

998 PART VIII Reproductive System Disorders

HISTORY, PHYSICAL EXAMINATION
APPROPRIATE SEROLOGY
VetBooks.ir SEMEN EVALUATION
(Brucella screen neg)

FIG 56.20
Flowchart illustrating the diagnostic pathway for male infertility.

spermatogenesis secondary to the destructive properties of or prostatitis. The normal flora of the distal urethra and
the organisms themselves and as a result of local swelling prepuce consist predominantly of aerobic organisms, but
and hyperthermia. Focal lesions can become generalized. anaerobic organisms are also found. Pasteurella multocida,
Infectious prostatic disorders can cause abnormal semen β-hemolytic streptococci, and E. coli are the organisms most
due to the prostatic fluid component. The normal bacterial commonly isolated from dogs (Table 56.1). Similar data are
flora of the prepuce and distal urethra are the same organ- available for tomcats (Table 56.2). Because of this, collect-
isms most frequently isolated from normal canine semen ing semen for culture can be misleading because normal
and also from dogs with bacterial orchitis, epididymitis, urethral flora will contaminate the sample. The number of