Hormonal Levels Associated with Dystocia Due to Failure of Cervical Dilation in Sheep and Goats

Document Type : Original Article

Authors

1 Department of surgery and theriogenology college of veterinary medicine Al-Muthanna University Al-Muthanna Iraq

2 Surgery and Obstetrics Department, College of veterinary medicine, Al-Qasim Green University, Babylon 51013, Iraq

3 Department of Surgery and Obstetrics, College of Veterinary Medicine, Baghdad University

Abstract

The study was designed to identify hormonal levels associated with dystocia due to cervical failure dilation in sheep and goats. Animals were divided into 4 groups: ewes: group 1 (study): 6 ewes suffering dystocia (failure cervical dilation), group 2 (control): 6 ewes with normal parturition. Goats: group 1 (study): 6 goats suffering dystocia (failure dilation), Group 2 (control): 6 goats with normal parturition in AL-Muthanna Governorate in 2023. Blood samples at two times: 1st time during the last period of pregnancy, 2nd time during the 1st stage of parturition. The study showed a decrease in the progesterone level (0.5±126 ng/ml) in ewes, (1.7±0.16 ng/ml) in goats (at p < 0.5) of the control groups in the 1st stage of labor, compared with the study groups (no decrease) in the progesterone level (2.11±117 ng/ml) in ewes, (2.13±0.10 ng/ml) in goats (at p < 0.5), during the 1st  stage of labor. The study showed a rise in the estrogen level (15.00±1.84 pg/ml) in ewes, (26.18±3.8 pg/ml) in goats (at p < 0.5) of control group in the 1st  stage of labor, compared with the study group (no rise) in the estrogen level (3.95±0.32 pg/ml) in ewes, (7.81±1.00 pg/ml) in goats (at p < 0.5) during the 1st  stage of labor. The study concluded that the concentration of progesterone and estrogen during the last days of pregnancy and 1st stage of labor plays a major role in cervix dilation and parturition in sheep and goats, so any defect causes a failure in the dilation and lead to dystocia. 

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