Diagnosis of Fibrinous Endometritis in Cows by B-ultrasound

Fibrinous endometritis in cows not only damages the uterine mucosa, but also damages the uterine myometrium and its blood vessels. The abnormal uterine wall can be seen on the B-ultrasound of cattle, which leads to a large amount of fibrinogen exudation and causes necrosis of the mucosa or even the myometrium. Its manifestations include fever, lack of energy, loss of appetite or abstinence, reduced or stopped rumination and lactation; frequent straining, dirty red or brown-yellow foul-smelling exudate flowing out of the vulva, containing mucus and dirty white mucosal tissue fragments, which increases when lying on the ground and often adheres to the vulva and the tail root; a large amount of mucus can be seen in the uterine cavity by B-ultrasound of cattle. If you put your hand into the uterus, you will feel that the surface of the uterine mucosa is rough; if it continues to develop, it can cause uterine perforation or sepsis.

Mucopurulent endometritis only damages the uterine mucosa. The body temperature of the affected cows is slightly elevated, their appetite is poor, and their milk production is reduced. They arch their backs and strain, often urinating, and discharge mucous or mucopurulent exudates from the vagina. The amount of exudates increases when lying on the ground. Exudates often adhere to the vulva and the base of the tail and dry up and form scabs. Vaginal examination shows that the cervix is slightly open, and sometimes purulent exudates can be seen flowing out of the cervix. Rectal examination shows that one or two uterine horns are enlarged, the uterine wall is thickened, the contraction reaction is weak, and there is pain. When the amount of exudate is large, there may be a sense of fluctuation. B-ultrasound examination of cattle shows that the thickness of the uterine wall increases and there is a large amount of mucus in the uterine cavity.

Chronic endometritis is mostly transformed from acute inflammation, and there are often no obvious systemic symptoms. Sometimes the body temperature is slightly elevated, and the appetite and milk production are slightly reduced. Vaginal examination shows that the cervix is slightly open, and transparent, turbid or purulent flocculent exudates flow out of the uterus; the uterus feels loose, the uterine wall is thickened, the contraction reaction is weak, and one or two uterine horns are slightly larger, which can also be clearly detected on the cattle B-ultrasound. Some have no obvious changes in clinical symptoms, rectal and vaginal examinations, only showing repeated infertility, a large amount of opaque mucus flows out of the vagina during estrus, and there is sediment after the uterine washings are left to stand.

Diagnosis of uterine prolapse recovery by B-ultrasound in cattle

Uterine prolapse in cows refers to partial or complete prolapse of the uterus outside the vulva, which usually occurs within 24 hours after delivery. If this disease is not treated in time or handled improperly, it will seriously affect the breeding function and production performance of the cow, and even cause the death of the sick cow. Therefore, it is necessary to use B-ultrasound in cattle to examine its reproductive system frequently.

Malnutrition, lack of exercise, thin body, old multiparous female livestock, oversized fetus, excessive amniotic fluid, etc. in pregnant cows can all cause this disease. Therefore, it is necessary to use cattle B-ultrasound for measurement before delivery. When the birth canal is dry, the fetus should be pulled out quickly. When the placenta does not come out, heavy objects should be dropped on the placenta or the placenta should be pulled hard. When the uterus is relaxed, it is easy to cause uterine prolapse.

The stubborn prolapse of the cattle uterus is due to the decrease in the contraction force of the cattle uterus, the elasticity of the surrounding connective tissue and ligaments and other supporting tissues decreases, and the vulva is relaxed. When the abdominal pressure of livestock increases, the uterus moves backward, giving the nerve center a "feeling of falling". In order to eliminate the "feeling of falling", livestock continue to push, causing the uterus to move backward. This vicious cycle causes the uterus and its surrounding tissues to lose contraction force and prolapse. It is clearer to observe on cattle B-ultrasound.

When the uterus is completely prolapsed, the cervix, uterine body and uterine horn are turned outward and outside the vulva, and can droop above the tarsal joint. If the prolapse time is long, the surface of the uterine mucosa is dry and cracked, the color changes from red to purple, and edema is prone to occur. If it is damaged, secondary infection may occur, severe bleeding may occur, and even life-threatening.

The prolapsed uterus is raised to the same height as the vulva, and the uterus is pushed into the vagina from the part close to the vulva with the fist or palm when the cow is not pushing. After pushing part of it in, the hand stays in the vagina for a short time to prevent it from prolapse again when pushing, then the hand is withdrawn, and the prolapsed uterus is pushed into the vagina in the same way, and repeated several times until the uterus is completely returned to the vagina. After the repair, regular observation should be carried out using cattle B-ultrasound.