Fathy, A., Abdallah, E. (2022). CAN SOMATOTROPIN ENHANCE THE SUPEROVULATORY RESPONSE IN EGYPTIAN BUFFALO?. Menoufia Journal of Animal Poultry and Fish Production, 6(1), 1-9. doi: 10.21608/mjapfp.2022.216812
Asmaa A. Fathy; Emad A. Abdallah. "CAN SOMATOTROPIN ENHANCE THE SUPEROVULATORY RESPONSE IN EGYPTIAN BUFFALO?". Menoufia Journal of Animal Poultry and Fish Production, 6, 1, 2022, 1-9. doi: 10.21608/mjapfp.2022.216812
Fathy, A., Abdallah, E. (2022). 'CAN SOMATOTROPIN ENHANCE THE SUPEROVULATORY RESPONSE IN EGYPTIAN BUFFALO?', Menoufia Journal of Animal Poultry and Fish Production, 6(1), pp. 1-9. doi: 10.21608/mjapfp.2022.216812
Fathy, A., Abdallah, E. CAN SOMATOTROPIN ENHANCE THE SUPEROVULATORY RESPONSE IN EGYPTIAN BUFFALO?. Menoufia Journal of Animal Poultry and Fish Production, 2022; 6(1): 1-9. doi: 10.21608/mjapfp.2022.216812
CAN SOMATOTROPIN ENHANCE THE SUPEROVULATORY RESPONSE IN EGYPTIAN BUFFALO?
1Animal Production Department, Faculty of Agriculture, Menoufia University, Egypt.
2Animal Production Research Institute, Biotechnology research department, Agriculture Research Center, Giza, Egypt
Abstract
The current study aimed to evaluate the follicular dynamics, superovulatory response, and embryo recovery in Egyptian buffaloes following superstimulatory treatment PMSG+rbst and its comparison with PMSG alone. Twelve buffalo cows, 60-120 days postpartum, 3-5 parities used and divided into two groups (6 animals each), the 1st group was superovulated with PMSG only, while the 2nd with PMSG+rBST. The ovarian response was followed using ultrasonography before treatments, at estrous day and before flushing process. All follicles with diameter < or ≥ 8mm, numbers of corpora lutea (CL) and unovulated follicles (UOF)/buffalo were recorded. Obtained results showed that PMSG+rbst resulted a positive ovarian response and increased numbers of small and large follicles in the ovaries (3.0±0.52and 8.67±0.49) compared with those treated with PMSG alone (2.83±0.17and 5.83±0.4, respectively). Furthermore, it increased the number of luteal particles, unovulated follicles and ovulation rate% (5.83±0.31, 2.33±0.33 and 70.68±3.98) in G2 compared to that observed in G1 (3.67±0.33, 1.83±0.31 and 66.74±4.67, respectively). The average number of total embryos, transferable embryos and the %transferable embryos/head in G2 were (3.0±0.37., 2.0±0.37., 66.7±4.65, respectively) greater than that harvested from G1 (1.83±0.48, 1.17±0.31., 63.9±5.96., respectively). Also, embryos recovery rate harvested from the PMSG+rbst treated buffaloes was (51.5%) slightly higher than that obtained from the PMSG treated buffaloes (49.9%). In conclusion, the current study indicates that superovulation buffaloes with combination of PMSG + rbst can improve ovarian response, recovery rate and percentage of transferable embryos more than those treated with PMSG alone.