El propósito fue evaluar la respuesta superovulatoria y colección embrionaria en alpacas estimuladas con gonadotropina coriónica equina (eCG) según el número de folículos emergentes ≥ 3 mm determinados en una previa onda folicular (OF). Se seleccionaron 26 alpacas de propiedad del CIP “Chuquibambilla”, UNA-Puno, conformando dos grupos experimentales (GEs) en función al número de folículos emergentes (GE01: ≤ 3 folículos, n = 15; GE02: ≥ 4 folículos, n = 11). Las alpacas fueron ecografiadas interdiariamente hasta inicios de la tercera OF. Posteriormente, alpacas con folículos ≥ 7 mm fueron inducidas a la ovulación con acetato de buserelina (día 0), se verificó la ovulación a las 36 h y se administró 700 UI de eCG. Al día 6.5 se hizo el empadre y 7.5 días después se colectaron los embriones (día 14). La data se procesó con SPSS v22.0 y con un nivel de sign...

The present study evaluated the ovarian and embryonic response of two hormonal superovulation protocols in high Andean Brown Swiss cattle. Four donor cows were used using an interrupted time series design with switched replications where each cow was subjected to two hormonal superstimulation protocols: protocol 1 (Prot.1, conventional FSH of 400mg in decreasing doses for four days) and protocol 2 (Prot. 2, eCG, 2500IU in a single dose). During the implementation of the protocols, the ovarian evaluation of the preovulatory follicles (POF) and the corpora lutea (CLs) was carried out by ultrasound. Likewise, the quality and rate of recovered embryos were evaluated. The results showed that the number and diameter of FPO and CLs did not show significant differences between the protocols, in the same way the number of embryos collected. With this, it is concluded that both superovulation prot...

The present study evaluated the ovarian and embryonic response of two hormonal superovulation protocols in high Andean Brown Swiss cattle. Four donor cows were used using an interrupted time series design with switched replications where each cow was subjected to two hormonal superstimulation protocols: protocol 1 (Prot.1, conventional FSH of 400mg in decreasing doses for four days) and protocol 2 (Prot. 2, eCG, 2500IU in a single dose). During the implementation of the protocols, the ovarian evaluation of the preovulatory follicles (POF) and the corpora lutea (CLs) was carried out by ultrasound. Likewise, the quality and rate of recovered embryos were evaluated. The results showed that the number and diameter of FPO and CLs did not show significant differences between the protocols, in the same way the number of embryos collected. With this, it is concluded that both superovulation prot...