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OJVR
Online Journal of Veterinary
Research©
Volume 14 (1):39-48,
2010. Redacted 2017.
Crossbred intersex
goats with XX chromosomes complement and expression of male sexual behaviour
RK Tonk1, AS
Yadav2, and BR Yadav1
1National Diary Research
Institute, Karnal, 2Kurukshetra
University, Kurukshetra, India.
ABSTRACT
Tonk RK, Yadav AS, Yadav
BR, Crossbred intersex goats with XX chromosomes complement and expression of
male sexual behavior, Onl J Vet Res, 14 (1):39-48, 2010. Intersexuality is one
of the prime genetical anomalies found in goats. It
is usually associated with polledness. In the present
study five cases of intersex goats were examined from birth to puberty and
beyond for different attributes. All these individuals were polled with XX
chromosome configuration, which was confirmed with C- and R-banding techniques.
Morphological features recorded at birth and frequently till puberty changed
gradually. The location of genital opening varied from normal female to normal
male, however, it looked like that of female vulva in four cases. The vaginal
opening, which was quite small at birth subsequently at puberty looked quite
similar to that of normal female, however clitoris got enlarged, protruded out
and could be visible from a distance. The one kid which had testes at later in
age penis was found fused with body and genital opening was midway towards
location of that of a normal male, though it did not show libido at puberty. On
maturity two individuals looked like buck and one developed a prominent beard.
The bearded had a strong libido, expressed all the symptoms of a fertile buck.
The intersex individuals provide excellent information to study sex mechanisms.
Keywords: Intersex goat, polledness,
chromosome, sexual behaviour, puberty.
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