Melofagoz sheep This invasive disease caused by sheep krovososkoy ( RESC ) — fly, a parasite on the body of the sheep. To infect susceptible sheep of all ages , the disease is recorded throughout the year, and the maximum peak in the spring . Ked has a gray — brown body . Viviparous female gives birth every 7-9 days one larva , which can be seen in her abdomen through chitin .
Born female larva attaches to the hairs of sheep . After 10 hours the larvae pupate . Through the 20-26 day hatches adult fly , which feeds on the blood of the host. The maximum life span flies — to 220 days , during which time she gives birth to 15-20 larvae.
Outside the host body the parasite can not live more than 5 days (in the summer ) . Ked — vector of pathogens and parasitic infectious diseases. Source of outbreak of the disease — patients sheep .
Parasites easily crawl from one animal to another , which is favorable to the habit of sheep crowding. Ked proboscis traumatize the skin and blood vessels , causing the development of dermatitis , slowing the growth of hair , which becomes brittle , contaminated feces parasites , dumped , getting a gray — green color. Itching , skin combed sheep hind legs , teeth , tearing and swallowing with wool and thus parasites.
In addition to itching and svalyannosti wool, sheep and a decline fatness milk production. The lambs of the disease is complicated by cachexia and ends in death . Possible complication of the disease and other invasive infectious diseases. Diagnosis is based on symptoms and detection melofagoza adult parasites and their pupae. Patients treated sheep dusts insecticides.
The drug is applied in a staggered manner , for example 0.5 % aqueous emulsion of malathion at the rate of 0.25-0.5 liters per head.