M anu-cervical technique of artificial insemination of the cow.

F.l. OSTACHKO, V.A. TSCHOURKOV

Research Institute of Animal Breeding of the Forest-Steppe and Polesje Region,
Kharkov, Ukraine, U.S.S.R

Electrographic examination of the uterus functional dynamism in the cow
revealed a defensive response of the female to insemination consisting of peri-
staltic contractions of the genital tract and developing of vaginal folds at the
entry of the cervical canal. The recovery of cervical erection and of anti-
peristaltic contractions of the genital tract can be evoked by means of a direct
m assage of the cervix caudal part and vaginal mucosal folds with a hand intro-
duced in the vagina.,

On the basis of physiological investigations performed, a manu-cervical
technique of cow insemination was devised which consists of injecting sperm
intracervically to a depth of 7 cm after cervical massage by means of a special
polyethylene ampoule connected to a catheter. The hand introduced into the
vagina must be protected by a polyethylene glove. This technique is largely
used in the U.S.S.R. It is high hygienic and easily applied. It augments the
fecundation by 10% as compared to insemination by means of a seringe-cathete
and a vaginal mirror (P 0,001).

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