La alpaca es una especie en riesgo de extinción por la vía del cruzamiento indiscriminado, que da lugar a una altísima tasa de hibridación por la cual la pureza genética de esta especie está muy deteriorada; además, los altos índices de consanguinidad, devienen en problemas reproductivos como el reducido coeficiente de correlación peso corporal/peso testicular y una serie de anormalidades visibles en los genitales masculinos. El objetivo principal del presente estudio fue evaluar los factores limitantes que determinan la baja productividad alpaquera en estancias alpaqueras de acceso viable de Licapa (Ayacucho) y Pilpichaca (Huancavelica). Los machos fueron seleccionados en cuatro grupos atarlos: machos de 10 a 12 meses de edad (n = 20), machos de 18 a 20 meses de edad (n = 20), machos de 24 a 36 meses de edad (n = 30) y machos con edad mayor a 36 meses (n = 30). Se registró la ...

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...