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Dr. Hadeel Samy Ahmed El-Qaliouby :: Publications:

Title:
Mifepristone synchronization of estrus and timed insemination for Swamp and River crossbred buffalo heifers
Authors: Adili Abulaiti, Hadeel Samy El-Qaliouby, Liguo Yang
Year: 2019
Keywords: PMSG; Mifepristone; TAI; buffalo heifers
Journal: International Journal Of Agriculture & Biology
Volume: Not Available
Issue: Not Available
Pages: Not Available
Publisher: Not Available
Local/International: International
Paper Link: Not Available
Full paper Not Available
Supplementary materials Not Available
Abstract:

The objectives of this study were to optimize the best dose of mifepristone injections in combination with PmPG synchronization protocols and the use of fixed-time artificial insemination (FTAI) to enhance the reproductive efficiency and the use of superior genetics of Chinese crossbred buffalo heifers. A total of 155 heifers were synchronized with PmPGMH in different doses (0.3mg/kg, 0.4mg/kg and 0.5mg/kg) of mifepristone. PmPGMH in mifepristone dose of 0.3mg/kg showed the highest significant (P < 0.05) estrus rate (84.2%), ovulation rate (89.5%) and conception rate (52.6%) among other methods. Furthermore, 41 crossbred buffaloes were subjected to single FTAI using PmPGMH at hours 16,20,24, 28 and 32 of mifepristone dose (0.3mg/kg) treatment to select the best AI time, the results showed that TAI at hours 24 was the best insemination time.

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