he Ixodida, commonly known as ticks, mites are arachnids order. It was described by William Elford Leach in 1815. The order includes, in 2010, 896 species classified into three families1 including 41 in France, 4 very occasionnelles2. They were once called "Tiquet" or "Ricinus". Ticks are ectoparasites mites vertebrates (including cold-blooded vertebrates such as lizards, snakes, turtles). They spend part of their cycle to the ground (hatched metamorphosis and looking for a host), and another part (two or three stages) anchored on the skin of mammals (wild and farmed), birds or reptiles, nourishing themselves with their blood through a rostrum. They can on this occasion transmit to their guests many known pathogens (viruses, bacteria, protozoa, nematodes) responsible for tick-borne illnesses, and sometimes neurotoxins (tick paralysis managers). Man can develop allergies to their saliva. It is especially the females fed adults, or about to gorge themselves with blood are the most recognizable because much larger than the other stages. For example, it weighed on a precision balance of the female tick Hyalomma asiaticum before and after its final meal. It was 624 times heavier qu'avant3 after meals; for a human being, it would be like to go from 60 kg to 37 tonnes after 4 or 5 days of constant meal. Such meals allow ticks to lay tens to hundreds of thousands of eggs (this figure varies among species and among individuals within the species).
Les tiques du chien - YouTube |
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| Pets & Animals | Upload TimePublished on 23 May 2016 |
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