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Results All the cow buffaloes were accessible to the Veterinary Clinical 12 to 24 hours after the onset of fetal expulsion (second stage of labor).The incidence of different causes of dystocia is presented in (A) Dead male buffaloes fetal Ascites after delivery by penetrated of abdominal wall and then lubrication and forced extraction the Fetus.
Depletion of calcium due to continuous uterine contractions without compensation from the body as a result of the low level of calcium or lack of time, to compensate despite the good level within the body will lead to weak uterus and failure to push out the fetus out of the birth canal normally.
In hypocalcemic buffalo, delivery needs expulsive forced contraction to help the uterine contraction to push the fetus through the birth canal, while the animal is hypocalcemic, the strength of muscle contraction is insufficient to have a role in second stage of labor to expel the fetus ().
In this study, dystocia weather maternal and / or fetal causes in Iraqi cow-buffaloes were analyzed.
A total of 35 cow-buffaloes were admitted to the Clinic College of Veterinary Medicine, Mosul University 12 to 24 hours after starting delivery. Either maternal or fetal (37.1%) in origin (62.85%), The maternal one showed a prevalence of 22.85%, 20%, 14.28%, 5.72% due to primary uterine inertia, incomplete dilation of a cervix, uterine torsion and narrow pelvis in buffaloes respectively. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Secondary uterine inertia happens as results of exhaustion consequent on prolonged dystocia ().
Fatigued uterine musculature due to failure to delivery or heavy muscle contraction with abnormal delivery either maternal and / or fetal cause is another factor leads to secondary uterine inertia accompanied with oversized fetus, birth canal obstruction.
While the fetal causes showed a prevalence of 22.85%, 20%, 14.28%, 5.72% due to primary uterine inertia, incomplete dilation of a cervix of 17.15% due to maldisposition in cow- buffaloes as compared to fetal monster and fetal emphysema. ailure to progress in labor, either maternal and/or fetal causes, for instance, an obstruction or constriction of the birth passage or abnormal size, shape, position, or condition of the fetus, or pathological or difficult labor is referred to dystocia ().
Mal presentations, uterine torsion, body weight at birth, twines, perinatal death, ring womb, birth body condition at calving and duration of gestation period are referred to direct and phenotypic factors.
Furthermore, cervical dilation happens with normal positioning and posture of a fetus presented during delivery but lack of uterine contraction due to various reasons leads to dystocia problems.
59.16% and 40.84% rate of dystocia incidence in Murrah buffalo because of maternal causes was in agreement with current results () Disagree with our recorded data of cases showing hypocalcemia and exhibited signs of milk fever at the beginning of calving, which related to 5.9% of uterine inertia incidence rate.