What kinds of elemental deficiency are cows susceptible to?
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Long-term fodder feed for cattle is single, it is prone to deficiency of the disease, resulting in obstructed growth and development of cattle, as well as declining reproductive ability of breeding cattle and even sterilization. Cows, especially dairy cows, are most susceptible to the following four elements deficiency: 1 Lack of zinc or calcium in zinc deficiency diets can cause zinc deficiency. Bovine skin is rough and thick, similar to skin inflammation, may account for about 40% of the body, mainly in the nose, anus, vulva, tail tip, ears, hind limbs, neck and other most obvious. Control methods: If calcium in the feed is 0.6%, zinc 50 mg/kg should be added; after the disease occurs, zinc sulfate or zinc carbonate can be added to the feed by 0.02%. In severe cases, zinc sulfate injection can be injected per kilogram of body weight. ~ 4 ml weekly zinc sulfate 2 grams; or 1 g per week for treatment. 2 Selenium deficiency If the selenium content in feed is lower than 0.05 mg/kg, this disease will be caused, among which the yak is even worse. The disease is mostly concentrated in the late winter or spring and summer season, especially in May to May. The disease can be divided into two types, acute and chronic. Acute illness, death without symptoms; chronic illness, lack of energy, stiff limbs, quick breathing, rapid heartbeat and irregular rhythm, general body muscle trembling, unstable standing, gait shaking, severe quadriplegia, anorexia, Constipation or diarrhea, late edema, thin blood, poor coagulation; after dissection, body muscle color fades, like cooked. Control methods: Treatment with 0.9% sodium selenite, yak each time 5 ~ 10 ml, intramuscular injection, repeated every 10 to 20 days. 3 Cu deficiency in copper-deficient feed, or containing too much molybdenum, zinc, iron, lead, or calcium carbonate, can cause the disease. The disease mostly occurs in cattle, especially in yak. ​​The weight loss, anemia, and milk production decline during the onset; cows appear protein in the post-natal urine, the hair is faded and rough; yak grows slowly, often diarrhea, easy to fracture, joints Swollen, stiff, hoofed, red blood cells and hemoglobin decreased. Control methods: Inoculate cows with 400 mg of calcium EDTA, copper glycine, and copper glycinate every 4 to 6 months, or add 0.5% of the amount of salt to the copper sulfate, and allow the cattle to feed. Once on every other day, it works better when used with cobalt. 4 Iodine deficiency in iodine-free feed or drinking water will lead to the disease. Bovine iodine deficiency often causes goiter, slow growth and development, weight loss, anemia, hair loss, fecundity decline. Treatment: Add appropriate amount of iodine-containing salt to the feed or add 250 mg of potassium iodide to 1 kg of salt. You can also add iodine daily or add 1% potassium iodide solution, that is, 1 ml of potassium iodide plus 100 ml of water, let it drink.