El trabajo de investigación se realizó en el Centro Experimental La Raya, de la Universidad Nacional del Altiplano, ubicado en el distrito de Santa Rosa, provincia de Melgar, región Puno a 4200m.s.n.m., en la época reproductiva de las alpacas, tuvo como objetivo, evaluar el efecto de la duración de la copula sobre la respuesta ovulatoria y la tasa de gestación. Para lo cual se utilizaron 47 alpacas hembras adultas con un intervalo post parto mayor a 20 días y presencia de un folículo de mayor a 7 mm de diámetro, las que fueron asignadas al azar a tres grupos experimentales de acuerdo al tiempo de cópula: grupo G1 (n=15) recibió una cópula de 20 minutos, el grupo G2 (n=16) de 35 minutos y el grupo G3 (n=16) de 50 minutos. Para el empadre controlado se utilizó 6 machos del núcleo de reproductores del centro experimental con capacidad reproductiva comprobada, la copula fue int...

An experiment was carried out at the Experimental Center La Raya-Universidad Nacional del Altiplano Puno, to determine the effect of copulation duration on ovulation and pregnancy in alpacas. 47 adult females were used (postpartum time ≥ 20 days and presence of a follicle ≥ 7 mm) distributed in three groups, according to copulation time: 20, 35 and 50 min, for G1 (n = 15), G2 (n = 16) and G3 (n = 16), respectively. For the mating, 6 reproducers of proven fertility were used, interrupting the copulation at the established time. Ovulation and pregnancy rates were evaluated on days 7 and 30 post service respectively (by ultrasound and receptivity of the female), the data were analyzed using X2 and simple correspondence. Both the ovulation rate (G1: 73.33%, G2: 81.25% and G3: 81.25%); and pregnancy (G1: 53.33%, G2: 81.25% and G3: 75%) were not different (P> 0.05). Pregnancy rates betw...

An experiment was carried out at the Experimental Center La Raya-Universidad Nacional del Altiplano Puno, to determine the effect of copulation duration on ovulation and pregnancy in alpacas. 47 adult females were used (postpartum time ≥ 20 days and presence of a follicle ≥ 7 mm) distributed in three groups, according to copulation time: 20, 35 and 50 min, for G1 (n = 15), G2 (n = 16) and G3 (n = 16), respectively. For the mating, 6 reproducers of proven fertility were used, interrupting the copulation at the established time. Ovulation and pregnancy rates were evaluated on days 7 and 30 post service respectively (by ultrasound and receptivity of the female), the data were analyzed using X2 and simple correspondence. Both the ovulation rate (G1: 73.33%, G2: 81.25% and G3: 81.25%); and pregnancy (G1: 53.33%, G2: 81.25% and G3: 75%) were not different (P> 0.05). Pregnancy rates betw...