Diagnosis and treatment of trace element deficiency in cattle

Diagnosis and treatment of trace element deficiency in cattle 1. Copper deficiency often occurs in service cattle, especially calves. The symptoms are emaciation, anemia, decrease of protein and lactation in postpartum urine, discoloration and roughness of hair, slow growth of calves, frequent diarrhea, easy fracture, joint swelling, stiffness, foot tip landing, red blood cell and hemoglobin decrease. This disease is mostly caused by insufficient copper in feed, or too much molybdenum, zinc, iron, lead and calcium carbonate. The method of prevention and treatment is to inject 400 ml of calcium molybdenum ethylenediamine tetraacetate, copper aminoacetate and copper glycine into cattle every 4-6 months; copper sulfate can also be mixed according to 0.5% of the amount of salt fed, and the cattle can be licked every few days. Second, the clinical manifestations of iodine deficiency are goiter, slow growth and development, weight loss, anemia, hair loss and decreased fecundity. Due to insufficient iodine content in feed or drinking water, an appropriate amount of iodized salt can be added to the feed or 250 mg of potassium iodide can be added to 1 kg of table salt; or 2-5 drops of iodine tincture or 1% potassium iodide solution can be added every day, that is, 1 ml of potassium iodide plus 100 ml of water. Let the cattle drink. Third, selenium deficiency where the selenium content in the feed is less than 0.05 ml / kg, it will cause the disease, especially in calves. The disease is mostly concentrated in late winter or spring and summer, and is easy to occur from February to May. The symptoms are lethargy, limb stiffness, rapid breathing, rapid heartbeat and irregular rhythm, muscle trembling, unstable standing, shaking gait, severe quadriplegia, anorexia, constipation or diarrhea, edema in the later stage and death soon. The prevention and treatment method is to use 0.9% sodium selenite injection treatment, calves each 5-10 ml intramuscular injection, the dosage of large cattle should be added, repeated every 10-20 days, the effect is obvious. Fourth, zinc deficiency cow skin is rough and thickened, similar to dermatitis symptoms, up to about 40% of the whole body, mainly in nose, anus, vulva, tail tip, ear, hindlimb, neck and so on. This disease is mainly caused by lack of zinc in feed, or excessive calcium in feed. To treat this disease, 0.02% zinc sulfate or zinc carbonate can be added to the feed, and in severe cases, 2-4 ml of zinc sulfate can be injected per kilogram of body weight. -studied.