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Signs of Calving

Written By Wulanto Burhan on Friday, June 8, 2012 | 11:12 PM

Signs of calving

Symptoms before parturition is almost the same on all cattle, but not constant among individual animals. Therefore, these symptoms can not be used to predict the exact time of parturition one animal, but can be a good indication of the approximate time of birth is expected. In cattle the ligaments in the pelvis (beef tendons in the hip) so slack that causes a decrease in the tendon at the back. In most cow flesh sagging veins, indicating that parturition is likely to occur within 24 to 48 hours.
female animals genitals becomes very oedematus (swelling), loosen till 2-6 times normal size. Enlarged udder and oedematus. Heifers on the swelling began in the fourth period of pregnancy, the cows give birth once (pluripara) enlargement of the udder may not be obvious 2-4 weeks before parturition.
A white mucus, thick and sticky out of the cranial female animals genitals starting in the seventh period of pregnancy, the mucus is more and more out of the birth. Immediately before parturition greatly increased the amount of mucus.
For a few hours before parturition animals showed decreased appetite and restlessness, wagging his tail, jerking-shooting foot, lay down and back up again.

The Stages Cattle's Chilbirth

Although parturition activity is a continuous process, but as a descriptive picture can be divided into three stages.

Normal Position of the Cattle's Partus
First Stage

This stage is characterized by active contraction of the tendon fibers in the wall of the womb (uterus) and widening (dilatation) of the cervix (the cervix). This condition occurs because of hormonal changes inside the mother before birth. Contraction of the uterus occurs every 10 minutes to 15 minutes and lasts up to 15 to 30 seconds.

The first phase of the cow that gave birth to appear for the first time takes longer than cows that had been childless. In the first stage is to look at the cattle seemed restless, appetite decreased, while lying down while standing. Towards the end of this phase of membranes (allantochorion) appears out of the female animals genitals and then broke. Fetus has begun to position themselves to get out of the uterus.

Second Stage

The second phase is characterized by the inclusion of the fetus into the birth canal is dilated, the rupture of the amniotic bag (allantois), abdominal contractions or fetal contractions and expenditures through the female animals genitals. During this second stage, the uterus to contract by 4 to 8 times, every 10 minutes and lasts 80 to 100 seconds. Repetitive contractions continue and the legs of the fetus visible on the female animals genitals. When the legs of the fetus through the female animals genitals, the bag ruptured amnion. Increased abdominal contraction occurs in the head, shoulders and hips of the fetus into the pelvis. When the head of the fetus into the female animals genitals, at the time of contraction is the stomach (abdominal) is strongest in the process of parturition. After the fetal head through the female animals genitals, usually the parent a break for a few minutes before returning with a strong contraction during fetal chest passes through the pelvic channel. Immediately following the hips toward the birth canal. The second stage of birth lasts 0.5 to 3 or 4 hours. In cattle that have been frequently bear this stage requires only half to one hour.

Third Stage

The third stage is the last stage of a process marked by the birth of the fetal membranes expenditure / afterbirth (placenta) and involution of the uterus. Removal of placenta is normally completed within a few hours after the expenditure of the fetus. Long time required for removal of placenta in cattle is 0.5 to 8 hours.
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