All the animals were in the age of sexual
maturity weighing from 80- 200 kg and were
apparently healthy when slaughtered. The number
of the examined animals were 25 in all. The
karyological analysis was made on leucocytes
taken from peripherial blood and cultured in vi-
tro according to MOORHEAD et al/10/with modific-—
ation by STEFFEN/11/. On autopsy the reproduc-
tive tract was examined anatomically and samples
for histological examination were taken.

1.ANATOMY AND HISTOLOGY OF REPRODUCTIVE ORGANS

In the examined organs structures deriving both
from Wolfian and Millerian ducts were found.There
were found both epididymis in 19 cases, ductus
deferens in 6, seminal vesicles in 5, penis in 4
cases.Simultanously 23 uteri and 21 vaginae were
found. In each animal individual differences were
found in particular organs and their mutual pro-
portion.

Histological examination of the gonads distin-
guished three types of +tissue structures: testes
ovaries and ovotestis.In the testes seminiferous
tubules and well developed interstitial +tissue
could be recognized.The tubules contained Sertoli
cells only;there was no active spermatogenesis.

Graafian follicles of 2-5 mm diameter with
several layers of granulosa could be seen in the
ovaries. The follicles contained oocytes. There
were no traces of luteinization. The presence of
ovarian and testicular structures in one of the
gonads was characteristic for +the ovotestis.The
ovarian structure was usually found in the cortex
and the testicular tissue in the medulla. Summar-
izing the left gonad had testicular structure in
14 cases,ovarian in 2 and ovotestis in 7. In the
right gonad there was testicular structure in 19,
ovarian in 1 and ovotestis in 5 cases. Histologi-
cal examination of +the gonads of the 25 inter-

/410/MOOREEAD P.S.,P.C NOWELL,W.J ,MELIMAN,D, M,
BATIPPS, D.A,HUNGERFORD,1960.Exp.Cell Res.,
20:613-616.

/11/ J .STEFFEN, H,MAIK,1966.Genet.Pol.,7:99-102.

910