Determinación del porcentaje de preñez mediante el uso de dos protocolos de IATF (DISPOSINT® 600) en vacas con problemas de fertilidad de la raza Brown Swiss original.

Abstract

The present research work aimed to determine the percentage of pregnancy by performing FTAI protocols (Fixed Time Artificial Insemination) in cows of Brown Swiss Original breed with ferility problems through the use of the progesterone Disposint® 600. There were 60 cows used with fertility problems from Monte Carmelo farm located in Chimborazo Province, Guano Canton, San Andres Parish, Urbina, where, a completely random design and 30 repetitions were developed for each treatment, There were 2 treatments performed: treatment 1 consisted of performing the protocol using: Disposint® 600 implant, Estradiol Benzoato, eCG and PGF2α and in T2 Disposint® 600 implant, GnRH and PGF2α was applied. In addition, zeal detector patches of the FASCO® AP brand were applied to determine the percentage of presentation of jealousy, and a gynecological check-up was carried out on day 30 to confirm pregnancy in cows. On the other hand, an economic analysis was also carried out to determine the cost of gestation of each of the treatments. We identified that, in Tl, there was 70% pregnancy compared to 43.33% pregnancy in T2. Progesterone Disposint® 600 serves as an adjuvant to recover cows with reduced fertility because of their total fertility, 42 cows (70%) recovered fertility. The economic evaluation found that the production cost was 32.89 for T2 and for T1 it was $32.62. It was evaluated that the effect of the progesterone Disposint® 600 serves as an adjuvant to recover cows with reduced fertility of the original Browns Swiss breed and increases the reproductive efficiency of the herd, so it is recommended to use the vaginal device Disposint® 600 and also to apply in other breeds of dairy cattle.