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Diagnosis and treatment of calcium deficiency claudication in cattle
Release time:
2019-04-09
Phosphorus-rich Rocky licking bricks, also known as "pregnancy-promoting Rocky", are specially designed and produced for breeding livestock, especially in the high-yield period of dairy cows, phosphorus, calcium, zinc, magnesium, iron, cobalt, iodine, manganese, selenium, The interaction of mineral trace elements such as sodium plays a very important role in improving the health index, reproduction rate and milk yield of dairy cows, and will affect the final profit and return.
In recent years, there have been unexplained cattle limping in some parts of our county.4of a township (town)5A cattle farm stock cattle.187Head, there's a lame cow22According to analysis and clinical trial treatment, it is believed that it is caused by calcium deficiency. The main reasons for calcium deficiency: one is the lack of calcium in the feed, and the other is the excess of phosphorus in the feed. The place investigated is due to the lack of calcium in the feed caused by cattle lameness.
1. Incidence
Places with lame cows are mostly lumpy low-lying wet areas. In these claudication endemic areas, often due to severe heavy rainfall in the previous season, the soil phosphorus absorbed by plant roots increased, and at the same time, there was a lack of some calcium-containing concentrate supplements.3～6Month is the peak season. Sick cows are mostly cows, and bulls rarely get sick. Cows are more likely to occur prenatal or postnatal, and postpartum cows are more likely to develop the disease than prenatal cows.
2 Causes of disease
Cattle limp is usually due to adequate phosphorus content in feed and drinking water or lack of calcium content, resulting in an imbalance in the proportion of calcium and phosphorus. It has been reported that calcium accounts37%Around, phosphorus accounts17%The ratio of calcium to phosphorus is about2∶1. Therefore, it is required that the proportion of calcium and phosphorus in the feed diet should be basically adapted to the proportion of bone. However, when the calcium in the feed diet is deficient, the normal proportion relationship is changed.
It is generally believed that the main reason for calcium deficiency in yellow cattle is that the ratio of calcium and phosphorus required for normal diets has changed. Rainy, low temperature zone of the plant phosphorus content is high, low calcium. Now the wide application of phosphorus fertilizer, so that plant fruit and straw phosphorus content is high, but also to lose the normal proportion of calcium and phosphorus. Concentrates containing more phosphorus are sorghum (phosphorus0.34%, calcium0.19%), Bean cake (P.0.56%, calcium0.19%), bran (phosphorus1.0%, calcium0.1%), corn (P.0.24%, calcium0.06%). At present, the yellow cattle in Pan County take corn and its straw as the main feed, while the cereal grass and green hay are very few, so the calcium deficiency in the feed is the main cause of the disease.
Cows in late pregnancy and lactation are prone to calcium deficiency, prenatal1～2In the next month, the fetus needs to take a large amount of calcium and phosphorus from the mother to meet its own growth and development needs. The calving cow produces a large amount of milk for the calves to drink, and the milk contains sufficient calcium. In these periods, if the calcium supply is insufficient, the disease will occur.
3. Clinical symptoms
Early onset of digestive disorders in cattle andHeterophilePhenomenon,Lick dirt, walls, and iron, chew stones in the wild, and eat filthy bedding in the cattle pen.At this time, it is easy to cause esophageal obstruction, traumatic net gastritis, etc. Some cattle dung is dry and thin, and there is undigested food in the dung.
After a period of ectopia, the patient is limp, inflexible, mainly manifested as stiffness of the anterior and posterior limbs, swaying of the body after walking, or limping of the limb wheel. Back waist strong, arch back to stand, often lying on the ground unwilling to stand up. When standing, the sick limbs move frequently, the gait is strong when walking, and it is easy to sweat when in service. Sick cattle stand up difficult, one limb or several limbs at the same time, lameness when light heavy, recurrent. General with the increase in the amount of exercise and limp aggravate, and finally can not stand up and was paralyzed. Sick cows show different postures due to different levels of calcium deficiency, such as pain in the spine, rib arches and limbs, and abnormal appearance.;Collapse or bulging of the spine, swelling or deformation of the joints;The tail vertebrae are arranged to shift and deform, the heavy tail vertebrae become soft, the vertebral body atrophy, and finally10The vertebrae often disappear, and the tail vertebrae can be curled artificially, so the sick cow does not feel pain. Pelvic deformation, severe cases can occur dystocia. When lying on the ground due to inflexible limbs flexion, often fall or slip. The degree of bone loosening and wear is greater than that of normal cattle, and it is easy to stab sick cattle with needles into the frontal bone, with poor appetite, anemia, emaciation, and rumination disorders. Common complications are mainly limbs, lumbar joint sprain, Achilles tendon stripping, pathological fracture;People who can't afford to lie down for a long time have bedsores, gastrointestinal relaxation, sepsis, etc.
4. Prevention and control measures
Prevention of yellow cattle feed to supplement cereal grass, green hay,also canSupplement with shell powder and eggshell powder,The most important to increase the free licking of the licking brick, supplement the absorption of calcium, phosphorus and other minerals.
Phosphorus-rich Rocky Lick BrickAlso known“Progestational Rocky", which is specially designed for breeding livestock, especially during the high-yielding period of cows,Phosphorus, calcium, zinc, magnesium, iron, cobalt, iodine, manganese, selenium, sodium and other mineral trace elements interaction,It plays a very important role in improving the health index, reproduction rate and milk yield of dairy cows, and will affect the final profit and return.
Phosphorus-rich Rocky Lick BrickSignificant efficacy:
1:Solve the problem of maternal reproduction (e. g. long parity, repeated infertility, frequent miscarriages)
2:Extend the peak period of lactation; increase milk yield.
3:Extend the useful life of female animals; (one annual output8,000liters of cows lost in their milk production60 kg of minerals)
4: Improve the comprehensive health index of dairy cows and reduce the incidence of dairy cows (e. g. mastitis, hoof disease).
5: Cow pica disappears (gnawing wood,Licking hair,Licking urine,gnawing plastic), with smooth fur.
6: to promote food digestion, improve feed utilization, saving concentrate.
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