Evaluación del efecto reproductivo de la GnRH y eCG, en cerdas multíparas York-Landrace sincronizadas mediante la utilización de altrenogest

Abstract

In the Center of Genetic Transference Reprogenes located in Riobamba city, Chimborazo province, the reproductive effect of the GnRH and eCG were evaluated, in bristles multiparous York-Landrace synchronized through the use of Altrenogest, evaluating different productive and reproductive variables during 150 days of investigation, determined that the rate of conception and fertility were not affected by timing systems employees. In addition a smaller number of services was identified by conception bristles synchronized with Altrenogest GnRH, therefore reaching the best reproductive outcomes resulting in a higher prolificacy with 14.33 piglets/litter. Besides, with this treatment a greater benefit cost was achieved with 1.71 USD during the evaluation period. By it exposed previously is recommended, the use of the system of synchronization Altrenogest GnRH in bristles multiparous, as alternative of the improvement of parameters reproductive and economic and also suggest to agroimportadoras of inputs livestock the record of the progestin used in the present research for its marketing, in order to be used by the producers in the procedures of synchronization of zeal in bristles