Should be administered by intramuscular injection at a rate of 100 µg of gonadorelin (as diacetate) per animal in one single injection (i.e. 2 ml of Ovarelin® per animal). Ovarelin® should be injected during oestrus.

Gonadorelin is the synthetic equivalent of natural gonadtrophin realising hormone (GnRH), and administration results in the release of both LH and FSH from the pituitary, which will induce follicular maturation and subsequent ovulation.

To improve significantly the pregnancy rates, the following timing of injection and insemination should be followed: