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Changes in the Hypothalamus and the Adjacent Ependyme in Ewes Upon Hormonal-Stimulation of the Ovaries

STANIKOVA A, RAJTOVA V, ARENDARCIK J
Veterinarni Medicina 36, 1991, 107-117

Superovulation treatment leaves alterations in the controlling regions of the hypothalamus and in the adjacent ependyme after ovulation. The test ewes were synchronized with Agelin (20 mg chlorsuperlutin in one vaginal sponge) and stimulated (after the removal of the sponges) with 750 IU PMSG + 750 IU HCG and with 1000 IU HCG and 750 IU PMSG + 5 ml Antisergon (goat antiserum against PMSG), administered 68 hours after PMSG (i. e. 40 hours after HCG). The control ewes were in different stages of the ovarial cycle. The experimental ewes were killed 120 to 130 hours after the start of stimulation. Routine histological techniques were used to treat the brain samples


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