OVARIAN ACTIVITY AND OVULATORY CYCLE IN POSTPARTUM PRIMIPAROUS EGYPTIAN BUFFALOES | ||||
| Journal of Animal and Poultry Production | ||||
| Article 5, Volume 30, Issue 12, December 2005, Page 7339-7346 PDF (2.25 MB) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/jappmu.2005.238446 | ||||
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| Authors | ||||
| E. E. Tharwat,1; H. M. Pharghaly2; A. M. EI sherbiny1; A. F. Hussein1 | ||||
| 1Animal Production Dept. Fac. of Agric. Ain Shams University, Cairo, Egypt. | ||||
| 2Radiobiology Dept. Atomic Energy Authority, Egypt. | ||||
| Abstract | ||||
| A total of 133 ovulatory cycles were studied on fifteen primiparous Egyptian buffaloes during the period from July 2001 to April 2003.The animals had 3.75 years of age with an average weight 423.47± 5.36 kg. All buffaloes were left without services for one year (12 months) to study the ovulation pattern and regular ovulatory cycle. The average lengths of the ovulatory cycle, postpartum interval to first ovulation and postpartum interval to first ovulatory estrus was 23.41±3.647, 128.87±80.761 and 187.85±83.100 days, respectively. During the study 146 ovulations were recorded, the average number of ovulations and quiet ovulations per buffalo cow were 9.73 and 5.07, respectively. The highest percentage of quiet ovulation and ovulatory estrus were recorded during October .On conclusion, the distribution of ovulation on monthly basis revealed that the Egyptian buffalo cows could ovulate around the year, however, cows show some fluctuation in monthly percentages with a peak value during October and drop during April and May. | ||||
| Keywords | ||||
| Ovarian activity; Ovulatory cycle; Postpartum; Egyptian buffaloes | ||||
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