|

  

 

 
      

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

CHROMOSOME SEX DETERMINATION
OF INTERSEXUAL PIGS/SUS SCROFA DOMESTICUS/

H.MAIK and L.JASKOWSKI

Department of Reproductive
Physiopathology and Insemination
Veterinary Institute,Bydgoszcz,Poland

Sex chromatine in somatic cells nuclei of
intersexual animals was found by CANTWELL/1/{ His
work apparently explained all intersexual pigs to
be chromosome females. Later studies in humans
indicated disagreement between the numbers of
Barrs bodies and chromosome X. This made further
investigation to determine sex chromosomes in
intersexes necessary .MAKINO/2/ was the first to
analyze the karyotype in one hermafroditic pig.
Similar research was conducted by others/3-9/.

The number of examined cases,to small to lead
to broader generalization,induced us to take up
similar work covering a larger material.

MATERIAL AND METHODS. Animals with anatomical
disturbances in the reproductive tract or sexual
behaviour inconsistent with developed sexual
organ were used for the investigation.As the ori-
gin of the animals was not known no genetic anal-
ysis was done.

/1/ G.E.CANTWELL, E,F.JOHNSTON, J.H,ZELLER,1958.
J.Heredit.,49:199-201.

/2/ S.MAKINO, M.S.SASAKI, T.SOFUNI, T.ISHIKAWA,
1962 .Proc.Jap.Acad.,38:686-689.

/3/ B.,HENRICSON, L.BAKSTROM,1963.Proc.11th Intern
Congr.Genet.,1:137.

/4/ W.H.GERNEKE,1964.S.Afric.J.Sci.,60:373-376.
/5/ W.A HARD, J.D.EISEN,1965.J.Hered.56:254-258

/6/ A.F.MCFEE, M.KNITH, M.W.BANNER,1966.Can.J.
Gent.Cytol.,8:502-505.

/7/ A.RERZONI,1965.Chromos.Newsletter,18:150.

/8/ L.LOJDA, M.RUSZOWA,1966.Fortpfl.Haust.,2:374-
382.

/9/ D.T.VOGT,1966.J.Anim.Sci.,25:252.