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What are the symptoms of lack of manganese in cattle? What should I do?
Release time:
2019-08-07
Manganese deficiency in newborn calves: the appetite of sick calves is obviously decreased, the coat is dry and faded, the legs are deformed, the ball joints land on the ground, the tarsal joints are enlarged and the legs are twisted, the joints are paralyzed, the movement is out of order, and it is difficult to stand up. Some calves occur before birth to limb and leg bending-based rickets. Welcome to pay attention: WeChat Public Number of Breeding Home. Cattle in manganese deficient areas have more paralysis, mooing from time to time, muscle tremor and even spasmodic contraction, weak constitution, weight loss, obvious movement disorder, dry and dull hair. The weight, length and fracture resistance of the humerus were significantly reduced.
(1)Primary manganese deficiency: caused by low manganese content in the diet. Plants growing in low manganese soil also have low manganese content, and dairy cows are prone to disease when fed with forage grown on such land for a long time.
(2)Secondary manganese deficiency: occurs in the presence of factors affecting the absorption and utilization of manganese, such as forage calcium, phosphorus and phytate content is too much, can make the absorption of manganese blocked and the utilization rate is reduced, thus inducing manganese deficiency. Suffering from chronic gastrointestinal diseases, can also hinder the absorption of manganese, utilization.
(1)Manganese deficiency in newborn calves: the appetite of sick calves is obviously decreased, the coat is dry and faded, the legs are deformed, the ball joints land on the ground, the tarsal joints are enlarged and the legs are twisted, the joints are paralyzed, the movement is out of order, and it is difficult to stand up. Some calves occur before birth to limb and leg bending-based rickets. Welcome to pay attention: WeChat Public Number of Breeding Home. Cattle in manganese deficient areas have more paralysis, mooing from time to time, muscle tremor and even spasmodic contraction, weak constitution, weight loss, obvious movement disorder, dry and dull hair. The weight, length and fracture resistance of the humerus were significantly reduced.
(2)Manganese deficiency in adult cows: in addition to some of the same symptoms as calves, there are sexual cycle disorders, slow estrus or no estrus, ovarian atrophy, ovulation stagnation, not easy to conceive or reduce the rate of conception, early occurrence of unexplained recessive abortion, weak fetus or stillbirth. Reduced milk volume, severe absence of milk.
(3)Bull manganese deficiency: testicular atrophy, poor semen quality, loss of libido, severe cases of loss of mating power, at the same time, periarticular inflammation, lameness and so on.
(4)Determination of manganese content in blood, milk and hair: adult cows are lower18 -19microgram/100ml, calves below20microgram/100ml. The manganese content in milk is lower30-40microgram/100ml, colostrum less130 -160microgram/100Milliliter, can be regarded as a lack of manganese. The manganese content in the wool is reduced8Milligrams/100The following grams of suspected manganese deficiency disease cattle.
(1) Increase the licking of licking bricks. Manganese in phosphorus-rich licking bricks is 2500 mg/kg. Cattle are free to lick according to demand, and there will be no shortage or excess.
(2)Supplementing manganese additive to manganese deficiency cattle every day1Times, every time2grams, for several days, can have a good effect on the recovery of reproductive performance.
(3)Improve feeding and supply manganese-rich green fodder. In areas of manganese deficiency or conditional manganese deficiency, cows are replenished daily.4grams, calves daily supplement2grams of manganese sulfate can prevent manganese deficiency, but attention should be paid to the content of manganese per kilogram of feed.20-30Milligrams is appropriate, and the dose of manganese should not be too large.
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