Clinically, sweating is a common symptom in dairy cows, which is usually easy to occur in high-yielding dairy cows. It is a secondary disease caused by the loss of large amounts of calcium during the peak lactation period, often accompanied by a lack of vitamins and trace elements. The disease usually occurs in late winter and early spring. It usually spreads gradually from the scapula to the whole body. After sweating in the morning, it will form a layer of white frost on the whole body's coat. Next, we will explain the cause of cow hyperhidrosis and the treatment of cow hyperhidrosis.
1. Etiological analysis
Hyperhidrosis usually occurs in high-yielding dairy cows at the peak lactation stage or before the dry milk stage, and the use of calcium preparations has an obvious therapeutic effect. The serum calcium content of diseased cows was examined. It was found that serum calcium content was significantly reduced. Usually, the serum calcium content of 100 mL cows dropped to 8-9 mg or lower. This was due to the loss of a large amount of calcium in milk every day during the peak lactation stage of high-yielding cows. It is reported that the amount of calcium per kilogram of milk is 1.2 g. When the milk yield reaches about 30 kg, 39 g of calcium will flow out of the milk every day.
After pregnancy, dairy cows also need to meet the needs of calcium for fetal growth. If the diet at this time contains less calcium, or although enough calcium is added, the ratio of calcium to phosphorus is unreasonable, and there are too many concentrates, which results in more acids in the digestive tract, and calcium is easy to combine with acid to form insoluble calcium salts. It causes the organism to be unable to obtain enough calcium in time. Also, dairy farming in Northeast China usually takes a long time to feed in the house. Some dairy cows even feed in the house all year-round. It is not only easy to lack light but also easy to lack green fodder. The above factors will lead to fewer vitamin D or a serious lack of vitamin D in dairy cows. Calcium in the body cannot be fully absorbed.
2. Clinical symptoms
At the initial stage of the disease, the appetite and appetite of the diseased dairy cattle were normal, but with the progress of the disease, the diseased cattle showed depression, loss of appetite, indigestion and physical wasting. A small amount of exercise would lead to fatigue and weakness, excretion of soft feces, urination frequency increased significantly, and urine volume increased slight edema of hind limbs, and labor. Milk volume decreased significantly, body temperature was low, mouth and eye conjunctiva did not change, morning usually in the head and neck, back or hind body there is a lot of sweat, as in the hair tip densely covered with small droplets or white frost, hand rubbing will become sweat, ear, nose, limbs cold.
Diseased cattle show loss of appetite, reduction of rumination frequency, loss of body weight, palpitation and short breath, dry mouth without moss, discharge of dry feces like military shape, less urine volume and turbidity, usually occur at night hot or low fever, accompanied by night sweating or sweating symptoms, some are sweating all over the body, some are sweating on one side of the body, with hands. Touch found a wet coat and will form small sweat beads, milk production reduced, and estrus rate decreased or repeated infertility.
Diseased cattle show mental malaise, limb weakness, often lying on the ground, in the daytime will be found spontaneous sweating, sweating, shortness of breath, slight movement will be obvious asthma, feeding reduction, rumination weakening, thin tongue coating, vomit and diarrhea, slow walking, reduced milk production, accompanied by limb edema or uterovaginal exfoliation, anal prolapse and other diseases.
Diseased cattle show reduced intake, inability to ruminate, dyspepsia, severe lack of nutrition facts, body weight, weakness, depression, palpitation easily frightened, pale or pale mouth conjunctiva, estrus cycle disorder or infertility. Usually, when milking with machinery, a lot of sweating will occur on the upper limbs or the nails, and the milk production will be significantly reduced, often only 1/2 or 1/3 of the original milk production, and the milk fat rate will also be reduced.
Usually, cows with Senile Deficiency of body suffer from diseases, such as loss of appetite, severe lack of nutrition, dyspepsia, emaciation, mental retardation, weakness of limbs and limbs, unstable walking, often lying on the ground, abdominal distention, shortness of breath, anxious hanging, reduction of milk production or cessation of lactation, often accompanied by vaginal exfoliation and son. The symptoms of uterine prolapse and prolapse of anus do not appear estrus for a long time, and during the day there will be a lot of sweating and spontaneous sweating in the whole body.
3. Diagnostic Essentials
The main characteristics of diseased cattle are usually sweating heavily at night. Sometimes in the early winter morning, it will form a layer of white frost on the coat of the body. The temperature of the corners of the mouth is high, the tongue is red, the pulse is fine. Dairy cows with Yang deficiency and spontaneous sweating are characterized by white sweating during the day, normal appetite and body temperature, and no changes in eye conjunctiva or mouth. However, when transferred to stables or under the shade of trees, it often causes obvious wetness or sweating around-ear roots, elbows, thighs and scrotum, and cold nose, ears, and limbs. It's short of breath. According to the above symptoms, we can make a preliminary diagnosis of whether the cows have night sweats or spontaneous sweat.
Blood calcium supplementation. Dairy cows with hyperhidrosis should be treated immediately to avoid secondary Chondrosis and paralysis due to long-term calcium deficiency. The diseased cattle can be treated by the intravenous drip of a mixture of 1000 ml 10% glucose, 200 - 300 ml 10% calcium chloride and 20 ml 10% sodium coffee once a day for three consecutive days, sometimes for five days.