O presente trabalho é complemento de nota prévia já apresentada, e traz os primeiros resultados sôbre a fecundação de vacas com sômen congelado em “Geto”, demonstrando não ter sido prejudicado o poder fecundante dos espermatozóides. Confirma, também, que depois de 17 meses de congelamento, o material apresentou excelente recuperação, face à movimentação da células espermáticas.O poluidor utilizado foi semelhante ao que é adotado para o sêmen líquido (Geto rotina) e tem por base emulsão de caldo de tomate e gema de ovo.

Egg Yolk—Tomato (Geto) was used without fractionation, as ex- tender for freezing 15 samples of  bull semen. Spermatozoa showed excellent recuperation (motility) 17 months after freezing. Semen of 3 samples, frozen for 7 months, was used for insemination of 117 cows, of which 44 conceived at the first service. Considering all the services a total of 51 pregnancies were confirmed by rectal palpation and latter parturitions. A conception rato of 14.2 to 62.5% resulted from first services, and for all services the rate was from 19.0 to 62.5%, The vide range of variation of the conception rato observed was due to the sanitary condition of the herds, some of them preveting the obtention of better results. However the study, faced as preliminary results, showed the possibility for freezing semen using Geto, which is an extender completely different from the saline solutions and the extenders universally used. It was demonstrated that spermatozoa showed fertility capacity for at least 7 months after freezing, and excellent motility when observed 17 months after freezing.