The study was carried out at the La Raya Experimental Center of the National University of the Altiplano of Puno at an altitude of 4200m,with the aim of evaluating the effect of additional post-ovulation copulations on embryonic survival. Huacaya alpacas were used withpostpartum sexual rest greater than 20 days, with a preovulatory follicle greater than 7 mm, verified by ultrasound. For the controlledmating, 5 males from the breeding group were used. After breeding, 26 to 35 hours post-mating, ovulation was verified, selecting 47alpacas that ovulated, and distributed to the experimental groups: G1 (n = 16) with no additional mating, G2 (n = 15) received anadditional mating 24 hours post-ovulation, and G3 (n = 16) two additional mating 48 hours post-ovulation. On days 14 and 24 aftercopulation, the presence of the corpus luteum and embryonic vesicle was verified by ultrasound and receptiv...

The study was carried out at the La Raya Experimental Center of the National University of the Altiplano of Puno at an altitude of 4200m,with the aim of evaluating the effect of additional post-ovulation copulations on embryonic survival. Huacaya alpacas were used withpostpartum sexual rest greater than 20 days, with a preovulatory follicle greater than 7 mm, verified by ultrasound. For the controlledmating, 5 males from the breeding group were used. After breeding, 26 to 35 hours post-mating, ovulation was verified, selecting 47alpacas that ovulated, and distributed to the experimental groups: G1 (n = 16) with no additional mating, G2 (n = 15) received anadditional mating 24 hours post-ovulation, and G3 (n = 16) two additional mating 48 hours post-ovulation. On days 14 and 24 aftercopulation, the presence of the corpus luteum and embryonic vesicle was verified by ultrasound and receptiv...

The study was carried out at the La Raya Experimental Center of the National University of the Altiplano of Puno at an altitude of 4200m,with the aim of evaluating the effect of additional post-ovulation copulations on embryonic survival. Huacaya alpacas were used withpostpartum sexual rest greater than 20 days, with a preovulatory follicle greater than 7 mm, verified by ultrasound. For the controlledmating, 5 males from the breeding group were used. After breeding, 26 to 35 hours post-mating, ovulation was verified, selecting 47alpacas that ovulated, and distributed to the experimental groups: G1 (n = 16) with no additional mating, G2 (n = 15) received anadditional mating 24 hours post-ovulation, and G3 (n = 16) two additional mating 48 hours post-ovulation. On days 14 and 24 aftercopulation, the presence of the corpus luteum and embryonic vesicle was verified by ultrasound and receptiv...

El presente trabajo se realizó en el Centro Experimental La Raya UNA-Puno, ubicado en el distrito de Santa Rosa, Provincia de Melgar, de la Región Puno a una altitud de 4200 m., con el objetivo de evaluar el efecto de cópulas post ovulatorias sobre la tasa de sobrevivencia embrionaria. Se utilizaron alpacas hembras Huacaya que tenían un descanso sexual postparto mayor o igual a 20 días, con presencia de folículo preovulatorio mayor a 7 mm de diámetro; verificado mediante ecografía transrectal, para el empadre controlado se utilizó 5 machos del núcleo de reproductores del CE La Raya con capacidad reproductiva comprobada a través de su historia en varias campañas. Luego del empadre controlado, entre las 26 a 35 horas pos servicio se verificó la ovulación, siendo seleccionadas y distribuidas al azar 47 de las alpacas que ovularon a los siguientes grupos experimentales: G1 (n= ...

The study was carried out at the La Raya Experimental Center of the National University of the Altiplano of Puno at an altitude of 4200m,with the aim of evaluating the effect of additional post-ovulation copulations on embryonic survival. Huacaya alpacas were used withpostpartum sexual rest greater than 20 days, with a preovulatory follicle greater than 7 mm, verified by ultrasound. For the controlledmating, 5 males from the breeding group were used. After breeding, 26 to 35 hours post-mating, ovulation was verified, selecting 47alpacas that ovulated, and distributed to the experimental groups: G1 (n = 16) with no additional mating, G2 (n = 15) received anadditional mating 24 hours post-ovulation, and G3 (n = 16) two additional mating 48 hours post-ovulation. On days 14 and 24 aftercopulation, the presence of the corpus luteum and embryonic vesicle was verified by ultrasound and receptiv...