Abstract:
The results of the hormonal dosages in cattle with
ovarian hypotrophy of the first degree have shown an ovarian hypofunction
by adenohypophysary hyposecretion, having FSH, LH and progesterone
secretory insufficiency and a low level of prolactine. The same situation
was registered in cows presenting an ovarian hypotrophy of the second
degree. In the females diagnosed with persistent luteal body, the values of
FSH/LH ratio had similar values. In cows with repeated artificial
insemination syndrome, the FSH/LH ratio was of 1.29/l for FSH so, we may
assess that the main factor of repeated artificial insemination is an
adenohypophysary hyposecretion of L.H. For restoring the normal titre of
LH and starting the ovulation we recommend that products with LH effect
(HCG 1500 U.I.; Gn-RH 2.5 ml) should be administered in cows.
