Evaluación de dos protocolos de inseminación artificial a tiempo fijo con dos inductores de ovulación en vacas

In an experiment carried out at the Technical University of Babahoyo, the effect of two hormonal treatments, Estradiol Benzoate (BE) and Estradiol Cypionate (CPE), on the induction of ovulation and pregnancy percentages in cows was evaluated, using a completely randomized design (D.C.A). 24 cows were selected, divided into two groups of 12 animals each. BE treatment included application of an intravaginal progesterone device (DIB), followed by administration of 2 ml of BE, prostaglandin, equine chorionic hormone, and artificial insemination with GnRh. CPE treatment was similar, but with the addition of 1 ml of CPE instead of BE. The results showed that, in the group treated with BE, the follicles reached an average diameter of 10.81 mm, while in the group treated with CPE, the average diameter was 11.48 mm. Although the CPE showed a larger follicular diameter and a higher pregnancy percentage (58% versus 42% in the BE), these differences were not statistically significant (p > 0.05). These findings highlight the need for additional studies with a larger sample size to confirm these trends and evaluate the effectiveness of hormonal treatments in various reproductive contexts.

In an experiment carried out at the Technical University of Babahoyo, the effect of two hormonal treatments, Estradiol Benzoate (BE) and Estradiol Cypionate (CPE), on the induction of ovulation and pregnancy percentages in cows was evaluated, using a completely randomized design (D.C.A). 24 cows were selected, divided into two groups of 12 animals each. BE treatment included application of an intravaginal progesterone device (DIB), followed by administration of 2 ml of BE, prostaglandin, equine chorionic hormone, and artificial insemination with GnRh. CPE treatment was similar, but with the addition of 1 ml of CPE instead of BE. The results showed that, in the group treated with BE, the follicles reached an average diameter of 10.81 mm, while in the group treated with CPE, the average diameter was 11.48 mm. Although the CPE showed a larger follicular diameter and a higher pregnancy percentage (58% versus 42% in the BE), these differences were not statistically significant (p > 0.05). These findings highlight the need for additional studies with a larger sample size to confirm these trends and evaluate the effectiveness of hormonal treatments in various reproductive contexts.

En un experimento realizado en la Universidad Técnica de Babahoyo, se evaluó el efecto de dos tratamientos hormonales, Benzoato de Estradiol (BE) y Cipionato de Estradiol (CPE), sobre la inducción de la ovulación y los porcentajes de preñez en vacas, utilizando un diseño completamente al azar (D.C.A). Se seleccionaron 24 vacas, divididas en dos grupos de 12 animales cada uno. El tratamiento con BE incluyó la aplicación de un dispositivo de progesterona intravaginal (DIB), seguido de la administración de 2 ml de BE, prostaglandina, hormona coriónica equina, y la inseminación artificial con GnRh. El tratamiento con CPE fue similar, pero con la adición de 1 ml de CPE en lugar de BE. Los resultados mostraron que, en el grupo tratado con BE, los folículos alcanzaron un diámetro promedio de 10.81 mm, mientras que en el grupo tratado con CPE, el diámetro promedio fue de 11.48 mm. Aunque el CPE mostró un mayor diámetro folicular y un porcentaje de preñez superior (58% frente al 42% del BE), estas diferencias no fueron estadísticamente significativas (p > 0.05). Estos hallazgos subrayan la necesidad de realizar estudios adicionales con un mayor tamaño de muestra para confirmar estas tendencias y evaluar la efectividad de los tratamientos hormonales en diversos contextos reproductivos.