منابع مشابه
Poultry Mites
Aij^ CLASSES of poultry are subject to the attack of mites, some of which are bloodsuckers, while others burrow in the skin or live on or in the feathers and still others occur in the air passage and in the lungs, liver, and other internal organs. The total loss chargeable to poultry mites is large, since these parasites cause retarded growth, reduced egg production, poor condition, lowered vit...
متن کاملAsthma and mites.
Introduction Dust, especially household dust is a very common cause of respiratory symptoms. Many asthmatic patients will state that dust makes their symptoms worse. Unfortunately it is not easy to decide from the history of the patient, or indeed from simple provocation tests, whether dust is an irritant or an allergen or possibly has both specific as well as nonspecific actions on the respira...
متن کاملPrevalence of Sensitisation to Mites
The atopic syndrome consists of a number of diseases affecting different organs, e.g. allergic asthma, allergic rhinitis, allergic conjunctivitis and atopic eczema. A person may have one or more of these diseases that may also vary with time, depending partly on exposure to triggers. The atopic phenotype has a strong hereditary component. About 40% of children are born with this hereditary trai...
متن کاملControl of Poultry Mites ( Dermanyssus )
Recent surveys and sample collection have conWrmed the endemicity of Dermanyssus gallinae in poultry farming worldwide. The reduction in number and eYcacy of many acaricide products has accentuated the prevalence rates of this poultry ectoparasite observed more often in non intensive systems such as free-range, barns or backyards and more often in laying hens than in broiler birds. The lack of ...
متن کاملMadeira's ptyctimous mites (Acari, Oribatida).
In the material recently collected in Madeira, 16 species of ptyctimous mites have been found. A new species of Austrophthiracarus rabacalensis Niedbala sp. nov. has been described. The presence of P. globosus and S. (R.) ortizi, reported earlier from Madeira has not been confirmed, but P. anonymus and P. montanus, so far not reported from this island, have been found. All 16 species identified...
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ژورنال
عنوان ژورنال: Nature
سال: 1889
ISSN: 0028-0836,1476-4687
DOI: 10.1038/040572c0