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Imago - an insect about 2 cm long, consists of singulair pills, chest and abdomen. The body is covered with dense hairs. The exit of adult gadflies from pupae occurs within a few seconds, after which the insect can fly. Epizootology. Hypodermatosis is more often observed among cattle, however, larvae of subcutaneous gadflies can also parasitize in the body of horses, sheep, goats, and other animals. Larvae of subcutaneous gadflies can also parasitize humans.
Years of gadflies and egg-laying begins with the onset of warm sunny days. The female gadfly lays eggs on the hair of the abdomen, the lower surface of the chest, the lateral surfaces of the body, on the hair of the limbs, groin, and udder. Female gadflies can lay about 700-800 eggs. The larvae emerging from the eggs penetrate the host body through the skin, after which they migrate along the vessels and nerves to order montelukast pills and enter the spinal canal. The gadfly larvae remain in the spinal canal for 5-6 months, after which they penetrate into the back and lower back. Here they form capsules in which fistulous openings are drilled and molt.
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After maturation, the larvae of the gadflies emerge from the capsule through the fistulous openings and fall to the ground, burrow into it, and after 1-3 days turn into pupae. Their development depends on temperature and humidity and is 17-43 days. Symptoms and course. The approach of gadflies causes fear in animals - they are worried, they can run away from the pasture. At the same time, the increase in live weight of animals is reduced, milk yield of cows is reduced. Long-term parasitism of larvae adversely affects the state of the organism.
Along the way, the larvae injure tissues, inflammation develops, rupture of blood vessels. The presence of a large number of larvae of the subcutaneous gadfly in the spinal canal can cause paralysis of the limbs. Characteristic nodules form in the back and other parts of the body.
Examination of animals (cows, heifers, calves) in order to determine the defeat of the subcutaneous gadfly is carried out from March to buy singulair online inclusive. In addition, fattening animals, as well as calves born before October last year, not grazing on the pasture, but kept in summer pens, are examined for damage to the subcutaneous gadfly. The diagnosis of hypodermatosis is made by the presence of nodules in the back, lumbar and sacrum.
Pharmacin, ivermectim 1% - 0.2 ml per head intradermally using a needle-free injector, neguvon - 24 ml per head by watering, ivomek, ivermectin - 1 ml / 50 kg of animal weight, hypodectin, hypodectin-chlorophos and other drugs are used. Control and prevention measures. To prevent infection of cattle with hypodermatosis, it is not allowed to pasture animals affected by gadfly larvae, as well as import animals from disadvantaged regions to farms without treating them with insecticides.
Early chemoprophylaxis of hypodermatosis is carried out in the period from September 15 to November 15 in order to destroy the larvae of the subcutaneous gadfly of montelukast pills stage in the body of cattle.
In autumn, insecticide treatment in disadvantaged farms and settlements is carried out for cows, heifers, heifers, fattening animals and young cattle older than 3 months of age, kept in summer pens near the premises.
The causative agents are the larvae of the common subcutaneous gadfly Hypoderma bovis and the southern subcutaneous gadfly (esophagus) of the esophagus Hypoderma lineatum, family Hypodermatidae, order Diptera.
Imago is an insect about 2 cm long. Larvae are about 1.5 cm long. Female gadflies can lay about 700-800 eggs. Both species are also found in US.
This entomosis is characterized by the wandering larva syndrome - parasitism of pathogens in human skin (see larva migrans).
To destroy the larvae of the second and third stages of the subcutaneous gadfly, insecticide treatment in disadvantaged farms and settlements is carried out by cows, heifers, heifers, fattening animals and young cattle older than 6 months of age from March 1 (southern zone) or from March 15 (central and northern zone) until September inclusive.
Human infection occurs through contact with cattle, from the wool of which newly hatched larvae can pass to human skin. In some cases, females lay eggs directly on human hair. Fistulas are localized in the upper body, on the forearm and head.
The larvae migrate in the subcutaneous tissue. Larvae move quickly - up to 12 cm in 12 hours. In unclear cases, the diagnosis is possible with the help of singulair pills, since the larvae cause the appearance of antibodies in the blood. Treatment consists of surgical removal of the larvae, prescribe Ivermectin in combination with aversectin ointment.