EvaluationStudyof Different Estrous synchronization programs on Indogenous Sudanese Cows

Abstract

This study was performed in Sudanese endogenous cattle to determine the conception rates after Artificial Insemination (A.I) by frozen semen and to detect the difference between estrous synchronization programs and natural un treated heat. For this study we selected 30 cows and they were divided in to three groups, each group contained ten animals. The first group is remained un treated with normal heat detection. The second group treated with CIDR (progestron) +GnRH+ PGF2. The third group was treated by GnRh+PGF2α. All these groups were inseminated artificially by frozen semen. After statistical analysis the conception rate was very high in the first group and the secconceived successfully after artificial insemination(A.I) compared to 4 out of 10 in group 2 and one out of 10 cows in group 3. conceived successfully after artificial insemination(A.I) compared to 4 out of 10 in group 2 and one out of 10 cows in group 3. ond group is better than the third group. In group one 6 out of 10 cows