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Qingfeng, Shandong | How to tell if a cow is pregnant
Release time:
2022-02-11
At present, the diagnosis of pregnancy in dairy cows mostly adopts rectal examination, that is, about 60 days after mating, touching the uterus through the rectum, the pregnant cow's pregnant uterine horn becomes thicker and fluctuates, and the combined groove between the two uterine horns is not obvious. At the same time, the corpus luteum can be clearly touched on the pregnant ovary. But for novice farmers, rectal examination method has a certain degree of difficulty, in the actual production is often not accurate.
Several manifestations of pregnancy in cows
After the fetus is in the womb, it depends on the nutrition of the mother's blood, and the mother gradually changes to adapt to this situation. The performance of the cow after pregnancy, from the appearance: the cow is no longer in heat, the temperament becomes docile, the food increases, the fat fur shines.
Primetime cows, after three or four months of pregnancy, can see that the breasts and nipples gradually increase, to seven or eight months later, the expansion is very obvious, the secretion of colostrum. As the fetus grows up, the size of the uterus increases, and the internal organs are squeezed to the right ventral side, which makes the external manifestations of the cow body shallow and faster, and the number of urination and defecation increases. Before delivery, the tail root of the cow sags on both sides, vulva swelling and flushing, etc. Some cows have edema on the lower limbs and under the abdomen. In late pregnancy, the vulva is swollen and soft, the right abdominal circumference increases and falls, the breast is distended, and the nipple is hard. One month before labor, the position of the sacral vertebra moved down, and the tail root was obviously depressed on both sides.
In the breeding of cattle, the early diagnosis of cow pregnancy has been perplexing the majority of farmers. It is of great significance to judge whether the cow is pregnant as soon as possible, to reduce empty pregnancy, improve production efficiency and increase economic benefits. At present, the pregnancy diagnosis of dairy cows is mostly used.Rectal examination methodThat is, about 60 days after mating, touching the uterus through the rectum, the pregnant cow's pregnant side uterine horn becomes thicker and fluctuates, and the binding groove between the two uterine horns is not obvious. At the same time, the corpus luteum can be clearly touched on the pregnant ovary. But for novice farmers, rectal examination method has a certain degree of difficulty, in the actual production is often not accurate.
Epidemic prevention, breeding, rectal examination
1. Look at behavior recognition
After mating, the cow no longer shows estrus behavior, its temperament becomes gentle, its appetite increases, and its fat and hair are bright. It can be preliminarily determined that it is pregnant.
2, look at vaginal identification
After pregnancy, the vaginal mucosa of cows changed from pink to pale, dull and dry. Mucus traits: after two months of pregnancy, there is thick mucus near the cervix. after three months of pregnancy, the amount of mucus increases and becomes thicker. at the same time, the vagina shrinks and the insertion of the opening device has resistance. this is because the cervix is closed by gray and thick liquid.
3, look at appetite recognition
After 3 months of pregnancy, cows generally have increased appetite, increased food intake, better fat condition, increased weight gain, and light hair.
4, look at breast identification
Breast expansion, nipple hard straight, is pregnant cow. Otherwise there is no pregnancy.
5, look at the bull's eye recognition
Three particularly exposed erect vessels appear on the iris directly above the pupil of the pregnant cow, the so-called pregnancy vessels, which are filled with protrusions on the surface of the iris and are purplish red. The blood vessels on the iris of cows that are not pregnant are small and not exposed.
6, look at oral recognition
Open the cow's mouth and look at the sublingual caruncle on both sides of the mouth. If it is bright red, it is a pregnant cow. If it is pink or light red, the cow is not pregnant.
1, see if the cow's tail is covered on the vulva
2. Rectal examination method
That is, about 60 days after mating, touching the uterus through the rectum, the pregnant cow's pregnant side uterine horn becomes thicker and fluctuates, and the binding groove between the two uterine horns is not obvious. At the same time, the corpus luteum can be clearly touched on the pregnant ovary.
3 Look at the tongue.
Open the cow's mouth and look at the sublingual caruncle on both sides of the mouth. If it is bright red, it is a pregnant cow. If it is pink or light red, the cow is not pregnant.
4, look at the blood vessels of the eyes
Three particularly exposed erect vessels appear on the iris directly above the pupil of the pregnant cow, the so-called pregnancy vessels, which are filled with protrusions on the surface of the iris and are purplish red. The blood vessels on the iris of cows that are not pregnant are small and not exposed.
5, with cow pregnancy test paper
This is more reliable, there are sold online, you can look at more than ten dollars each.
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