Ultrasonographic monitoring of ovarian activities after superovulation treatment in buffalo cows
Author(s):
Mohammad Harun-or-Rashid1
SK Phulia
2
Rakesh Kumar Sharma
3
Nasrin Sultana Juyena
4
Mir Md. Iqbal Hasan
5
1Department of Surgery and Obstetrics, Bangladesh Agricultural University, Mymensingh-2202, Banglades
2Division of Animal Physiology and Reproduction, Central Institute for Research on Buffalo (CIRB), Ha
3Division of Animal Physiology and Reproduction, Central Institute for Research on Buffalo (CIRB), Ha
4Department of Surgery and Obstetrics, Bangladesh Agricultural University, Mymensingh-2202, Banglades
5Department of Surgery and Obstetrics, Bangladesh Agricultural University, Mymensingh-2202, Banglades
Abstract - Potential applications of modern reproductive technologies including monitoring follicular dynamics, es- trus synchronization and superovulation would be a new dimension of research at the farm level for improving buffalo’s fertility and production. Therefore, the study was aimed to understand and monitor the ovarian dy- namics after induction of superovulation in buffalo cows. Ovarian activities after superovulation treatment were monitored by trans-rectal ultrasonography. Follicle stimulating hormone (FSH) was used for superovulation in six mature Murrah buffalo cows and the embryos were collected by non-surgically technique on day 6 of the estrous cycle. The result showed a significant (P < 0.05) effect of superovulation treatment on follicular size, number and maturation. The result also revealed that the number and size of follicles of right and left ovaries, as well as their growth rate, have no significant (P > 0.05) difference during the superovulation treatment of animals. The development of dominant follicle and formation of corpus luteum after treating with the FSH had shown positive results in the present study but the number of recovery of embryos was very poor. Observed the ovulation rate was 58.62% and the embryo recovery rate was very poor (? 3%). This study suggests that more efforts should be made to better comprehend the mechanism of embryo production, maturation and collection during the MOET program in buffalo cows.
Keywords - Ovarian activities, superovulation, ultrasonography, buffalo.