To prevent re-mating and ensure proper care, you need to know how to determine the pregnancy of a cow. Under farm conditions, pregnancy can be detected in cattle (CRS) in several ways: rectal examination, ultrasound diagnosis, enzyme immunoassay for milk. Research should be carried out by a qualified veterinarian. Otherwise, there is a risk of harming the animal and provoking a miscarriage.
Under farm conditions, cows are often determined to be pregnant with a rectal examination. Before the procedure, you need to cut your nails shortly and file them with a file so as not to injure the internal organs of the cow. Then you need to lubricate the hand with oil or cream and insert it into the anus of the animal. This is where the research is conducted.
To understand that a cow is pregnant, you can, if you test her uterus and ovaries. When the fetus is absent, these internal organs are located in the pelvic cavity. During palpation of the uterus, it is actively reduced. It is necessary to pay attention to the consistency of the body, which becomes very elastic. It is also easy to detect the interthrench groove, and the heifer ovaries almost always differ in size.
If the cow is pregnant, the main symptom is an enlarged uterus, which descends towards the abdominal cavity. Also, a qualified veterinarian understands how to know the gestation's gestation period. In a later month of pregnancy, the body of the uterus is covered with specific nodes that often reach the size of a chicken egg.
Cautions during rectal examination
If you decide to determine whether a cow is pregnant or not, with the help of a rectal examination, you must make sure that the test is carried out through the correct opening. If you inadvertently mix up and put your hand into the vulva, an abortion may occur in the cows. There is a risk of pulling the stopper out of the mucus or injuring the calf too much.
During the inspection of the movement should be very gentle. Do not use excessive force. If you too actively touch the wall of the rectum, there is a risk of breaking the connecting part between the uterus and the calf. As a result, a spontaneous miscarriage or a fading of fetal development will occur. Carefully pull out your hand, otherwise you may end up in cow dung. To the anus closed in a natural way, proceed very carefully and slowly.
Rectal examination of cows for pregnancy often causes discontent. A heifer may kick, move or fall while the arm is in the rectum. As soon as you realize that the animal is very nervous, you must carefully complete the procedure. Otherwise, the situation can end badly. There is a risk of pulling the muscles or breaking the arm.
When determining the pregnancy of several cows, it is necessary to change gloves before each examination so as not to spread all kinds of genital infections.
Ultrasound diagnosis is very effective if the question arises how to determine a frozen pregnancy or a cow's pregnancy. This method is much more effective than rectal examination. Today used portable ultrasonic devices that are easily transported, resistant to shock and moisture, easy to use.
Before conducting an ultrasound to determine whether a cow is pregnant, the rectum must be carefully cleaned with oil. The tool should be abundantly lubricate the gloved hand and clean the anus. After that the probe is accurately entered into it. The specialist determines the location of the uterus and sets the instrument above it. Then the study of the body of the uterus and horns. With the help of ultrasound is determined by the presence of the fetus and the duration of pregnancy. The contents of the body, the size and activity of the calf are also examined.
Diagnosis should only be carried out by an experienced veterinarian. If a specialist lacks certain skills, during the ultrasound examination, the cow will bleed. If there is any sign of discomfort, the procedure should be immediately stopped.
Pregnancy check with lab test
It is possible to establish a cows pregnancy already at week 3 using enzyme-linked immunosorbent assay (ELISA) of serum or milk for progesterone levels. Thus, it will be possible to detect pregnancy 50-60 days earlier than during a rectal examination, and a week earlier than using ultrasound using the sensor.
The disadvantage of the method is the small number of laboratories in which the necessary equipment is located. In addition, there is a problem in the storage and transportation of frozen milk in the laboratory. They are often located far from the farm.
Such a diagnosis makes it possible to shorten the period between calving, to carry out early treatment, to organize repeated sexual intercourse. In addition, ELISA eliminates insemination of already pregnant cows, which show signs of false estrus. Accordingly, gynecological pathology and fetal death are excluded. It is necessary to drink 1 ml of milk in a test tube and send it for analysis. If the lab is too far away, the milk should be frozen.
How to determine pregnancy yourself
To identify the pregnancy of a cow is possible without the help of a veterinarian. Often used manual method, during which palpation of the right side of the animal. However, this method is effective only after 4 months of pregnancy of the cow. Determine pregnancy succeeds with the help of milk. You need to mix the milk with alcohol and detect the time during which it will roll up. If the process takes less than 5 minutes, then the animal carries a calf.
Not bad cope pregnancy tests. But you need to buy a tool for cattle, because the usual women's tests from the pharmacy are not effective. For express diagnostics, you need to mix urine with reagent and look at its color. In addition, you can identify pregnant buren by appearance. Read more in the article: "How to determine the pregnancy of a cow at home."
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