%0 Journal Article
%T The Effect of Ovsynch Protocol Combine with Progesterone (PRID£¿) on Pregnancy Rate in Dairy Cows
%A Serhan Serhat AY
%J -
%D 2018
%X The effects of ovsynch protocol combine with progesterone on pregnancy rate in dairy cows were investigated. A total of 50 Holstein-Fresian cows, divided into two groups were used. In groups 1 (G1; n=30) were received ovsynch protocol: GnRH (Gonadorelin diasetat tetrahidrat, 100 ¦Ìg/cow, i.m., Ovarelin£¿, Ceva, Turkey) on d0, PGF2¦Á (Dinoprost, 25 mg/cow, i.m., Enzaprost-T£¿, Ceva, Turkey) on d7, 2nd GnRH on d9 were applied and subsequent 16th hours artificial inseminatin were preformed. In Grup 2 (G2; n=20) unlike the G1 a progesterone source PRID-Delta£¿ (1.55 g Progesteron, Ceva, Tu£¿rkiye) were inserted intravaginally during day 0 to 7. Pregnancy diagnosis was performed by rectal palpation on days post-AI 45-60. Postpartum days 59.93¡À8.72 and 59.25¡À14.17 days (P>0.05); milk yield 26.16¡À4.93 and 28.80¡À6.77 kg (P>0.05); lactation number 1.90¡À0.53 and 1.75¡À0.44 (P>0.05); body condition scores 3.27¡À0.42 and 3.25¡À0.30 (P>0.05) were found for G1 and G2, respectively. When the groups were divided into two subgroups as pregnant and non-pregnant animals, there was no significance between the above parameters. Although the pregnancy rates as 60.00% in G2 supported by progesterone were higher than G1 (53.33%), there was not found significance between the groups (P>0.05). Conclusion: Applied progesterone to support ovsynch protocol may increase pregnancy rates and PRID may use this purpose. However more studies are needed to confirm the results
%K ebelik
%K inek
%K ovsynch
%K progesteron
%U http://dergipark.org.tr/duvetfd/issue/42529/513951