To evaluate the effect of oxytocin as a cervical dilator, a study was carried out on nulliparous goats inseminated transcervically at the beginning of the breeding season. One hundred sixteen nulliparous goats with a mean live weight of 33.4±0.68kg and an age of 13.7±0.37months were used. The goats were exposed to active bucks of proven fertility for a period of 14 d in order to induce oestrus. One week later, the Ovsynch protocol was applied, which consisted of the application of 20mg of gonadorelin (Day Zero), 0.075mg of cloprostenol (Day 7) and of a second dose of 20mg of gonadorelin applied on Day 9. Artificial insemination (AI) was performed 16hr later. Three treatments were evaluated: T1=50IU saline, T2=25IU oxytocin; T3=50IU of oxytocin, intravenously applied 10-15min before AI. The time required to inseminate each treated goat from groups T2 and T3 was 49.56 and 56.25s, respectively, versus 85.78s needed for the goats from group T1 (p<.0001). In the T1 group of goats, the insemination catheter was inserted 2.1cm into the cervical canal and in goats from groups T2 and T3 it reached 3.41 and 3.77cm into the cervical canal, respectively (p=.02). Pregnancy rates and prolificacy (kids/doe) were higher (p=.02) for groups T2 (82.93%; 1.16) and T3 (76.92%; 1.21) respectively than for control goats (61.11%; 0.69). In conclusion, the intravenous administration of oxytocin led to greater dilation and depth of cervical penetration, obtaining higher pregnancy rates and prolificacy.