Vle CONG. INTERN, REPROD. ANIM. INSEM. ARTIF., PARIS, 1968, VOL. Il

of male pseudohermaphroditism in sheep. The first was an
Afrikaner x Persian crossbred twin to a male. Studies of cul-
tures of the bone marrow demonstrated cells with XX (58.5%) and
XY (41.5%) sex chromosomes. The second intersex was a Karakul,
but unfortunately it is unknown whether it had a twin. ©No cells
with XY sex chromosomes were found in bone marrow cultures, but
a few drumsticks were seen in blood leucocytes. The Afrikaner

% Persian crossbred seems to be undoubtedly a freemartin while
the status of the Karakul is equivocal. Bruere and McNab (1968)
have studied six cases of intersex in which cells containing

XX and XY sex chromosomes were observed in cultures of peri-
pheral blood. 1In five of these cases it is known that the in-
dividual shared a common uterine environment with a normal male.
Studies of cultures from muscle, kidney, and gonadal tissue from
four of these cases demonstrated the presence of cells contain-
ing XX sex chromosomes only. Thus in these four cases of inter=
sexuality in sheep strong evidence exists for the invasion of

genetic females by XY cells.
Goat

The literature to 1964 on pseudohermaphroditism i the
goat was reviewed by Biggers and McFeely (1966) . It was pointed
out that all indirect evidence suggested the animals were genetic

females with male gonads. Studies on the sex chromatin of twelve

847