TY  - SER
AU  - Derar,D.R.
AU  - Hayder,M.
AU  - Ali,A.
AU  - Hamdoun,H.
TI  - Postpartum uterine involution and luteal activity in farafra ewes lambing in autumn
KW  - Ewes
KW  - Physiology
KW  - Puerperium
KW  - Progesterone
N1  - Includes references
N2  - The study was designed to estimate the time needed for complete uterine involution and postpartum luteal activity in Farafra ewes lambing during autumn (n = 40). Transrectal ultrasonographic examinations were performed twice weekly after parturition. Uterine involution and luteal activity were detected ultrasonographically. Blood sampling (twice weekly) was started on d 14 until d 73 postpartum to determine progesterone concentrations. The mean interval for complete uterine involution was 28.72 ± 1.0 d. The proportion of ewes that showed the presence of a cyclic CL within 35 d of lambing was 72.5%. Farafra ewes showed a progesterone concentration greater than 1 ng/ml at 22.0 ± 2.5 d postpartum. Three out of six ewes showed more than one short cycle during the observation period. In this study, it is concluded that the majority of farafra ewes had a complete uterine involution and luteal activity within 35 days post partum during October (lambing season) in the subtropics
UR  - http://nile.enal.sci.eg/EALE/2012/AVMJ/5812/132/417.pdf
ER  -