Comparison of the Results Synchronization with Progesterone Implants and Fixed Time Artificial Insemination in Dairy Cows

Dairy cows that are being cared for in family businesses were used to compare the pregnancy rates by applying different time periods, using progesterone devices, and fixed-time artificial inseminations. The randomly divided into 3 groups. Group 1(n = 56); On day 0, GnRH (IM) (10mg Buserelin acetate, Ovarelin, CEVA DIF) + Progesterone implants (PRID®) (1,55 g CEVA), Day 8 PGF2α (Dinoprost tromethamine, 25 mg, Dinolytic, Pfizer), 9 removal PGF2α, insemination was performed at 56th hours after second injection. 2 (n 50); on implants, 8th day, 9th 48th 72th hour 53); 0 5th injection, 6 remove implant 56 PGF2α. average milk yield recorded 1 16.66 ± 5.28 kg, 13.46 3.05 kg. as 15.35 4.60 Pregnancy diagnoses 35 days insemination. rate 41.07% 1, 42% 2, 52.83% 3. As a result; similar all three It has been concluded synchronization with can solve many reproductive problems.