1. Causes
(1) It is mainly due to improper feed mix, poor feeding and management, a serious lack of calcium, phosphorus and other minerals in the feed, unfavorable feed nutrient mix, resulting in inadequate intake of calcium-containing substances in pigs and promoting sow herding.
(2) As the fetus of the pregnant sow absorbs a large amount of nutrients from the mother, the maternal blood calcium concentration is greatly reduced. If the nutrients, especially calcium, phosphorus, etc., cannot be supplemented in time, then the disease will be induced. occur.
(3) Postpartum sows Because piglets draw a lot of nutrients from breast milk, piglets are weaned too late. If nutrients are not adequately supplied, especially those rich in calcium, phosphorus and other elements, it will lead to blood calcium in sows. The rapid decline in concentration induced the occurrence of the disease.
2, symptoms
In most cases, the body temperature was normal, and the pulse and respiratory rate were normal or slightly increased. Occasionally, the body temperature of secondary infection increased, the pulse and the number of breathing increased significantly, most of the affected pigs swayed in the early stage, the spirit was depressed later, and the severe cases were drowsy. The hindquarters are insensitive to pain irritations. The urine is light yellow or yellow and the stools are dry and spherical. Appetite, loss of appetite, mild symptoms are also barely able to support for a while, but they can not insist for a long time. When feeding, some sick pigs want to stand, but due to weakness in the limbs, the feet trembling, standing unsteady, screaming, can only forelimbs, the hind limbs were eight-shaped type of ground to eat, the majority of sick pigs body condition Poorly, some of the sick pigs could not afford to lie down for a long time, and the coat was exfoliated and the skin was festered. Some of the sick pigs' ulcerated skin was infected and sores were shed at the sores.
3, prevention
(1) Adding rich raw materials such as calcium powder and bone meal to the feed can reduce the incidence of this disease.
(2) In the feed, the ratio of calcium to phosphorus should be 2:1, so that the pigs can get more sun, or supplement vitamin D.
(3) to strengthen the feeding and management, scientific and rational preparation of feed, can not eat food, to full price nutrition.
4 treatment
(1) mild disease, with intramuscular injection of Vidin gelatin calcium 4ml, once every other day, once every 3 to 5 times, if the condition improves, can reduce the dosage, as appropriate, for those who have a certain appetite and drinking Pigs can add bone meal and calcium powder to feed to strengthen nutrition. To prevent the occurrence of secondary infections, appropriate amounts of antibiotics can be used to symptomatic treatment.
(2) Those with severe conditions, especially those who have been lying for a long time, have poor health, have lost their appetite, and have acne on their body surface. They can use topical antibacterial and anti-inflammatory drugs for topical treatment. The diseased pigs can be artificially turned over, usually turning them 4 to 6 times a day to prevent acne. For sick pigs, use 10% calcium gluconate 150ml ear vein slow injection, or 5% calcium chloride injection 20 ~ 50ml intravenous slow injection, once daily medication, once every 3 to 5 days, can be increased or decreased as appropriate. For sick pigs whose appetite is abolished, intravenous drip can be used, with intravenous injection of 5% calcium chloride injection 30 ml and 5% glucose normal saline 1000-2000 ml, or calcium gluconate injection 100- 200ml intravenous drip. For sick pigs with severe illness, intravenous drug administration can be used intramuscular injection of vitilin glue 2 ~ 3ml, injection every other day, once every 3 to 5 times, can be increased or decreased as appropriate. In order to prevent secondary infections, antibiotics can be used as appropriate.
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