Eficiencia de dos implantes (DIB – CIDRS) en la sincronización de la ovulación de bovinos Holstein.

Abstract

This research was performed to determine the efficiency of two implants (DIB - CIDRS ) in synchronizing ovulation in Holstein cattle in the parish Ilapo , Guano Canton province of Chimborazo. Using the scientific method the synchronization of ovulation was assessed , based on the implantation of two types of hormonal devices (DIB and CIDRS ) and fixedtime artificial insemination (TAI) using 10 young caw Holstein (5 per treatment) which were cycling normally and is istributed under a completely randomized design. The experimental results showed that the products used did not influence the weights, weight gain and body condition, but not in the reproductive responses, since the implementation of DIB with 100% of the had zeal of young cow between 49.20 +7.56 hours removed the device, while the CIDRS was 80 % of the animals and in less time ( 31.50 +6.61 hours). The conception rate with DIB was 80% and the CIDRS was 40%, so the cost by young cow pregnant was 121.43 and 56.15 dollars respectively. As conclusion, it is mentioning that the use of these devices may increase reproductive parameters and solve problems affecting the livestock sector. Also it is recommended to synchronize ovulation of the young cow using the DIB device, according to the following protocol: day 0 place the device into the internal vagina of the bovine (DIB ) plus 2 mg of estradiol benzoate. On the 7 day remove the implant and apply 2 mg PGF2a. The 8th day inject1 mg of estradiol benzoate and finally the 9th perform the IATF test.