Có 24+ tài liệu thuộc chủ đề "tự điển thú y"
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A break on the surface of the skin, or of any mucous membrane of a cavity of the body, which does not tend to heal. Glanders ulcers are typically encountered in the mucous membrane of the nostrils, and have a ‘punched-out’ appearance.. An antibiotic or one of the sulfa drugs may be used.. Grey lesions are seen above the eyes,...
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a preparation of the necessary antigen(s. Some fish are vaccinated by dipping the fish in a solution of the vaccine. from genetically engineered subunits of the pathogenic fraction of the organism;. The virus component of the subunit vaccine has difficulty in penetrating the cells of the vaccinated animal. Some of the air in the egg’s air pocket is thus extracted...
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Wall eye (leukoma) is a condition in which the brown pigment of the iris is lacking, giving the iris a steely blue appearance. In the horse, wall eyes may occur when the greater part of the face, or that portion around the eyes, is white. The pupil of the eye appears to be encircled by a ring of bluish or...
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X-Rays are high-energy radiation capable of passing through considerable thicknesses of many substances which are opaque to ordinary light, without undergoing material absorption, but other substances, even in very small thick- nesses, are able to absorb the great majority of the rays: thus, flesh is very transparent. Precautions Guard screens of lead glass, rub- ber impregnated with lead, or sheet...