Obstructions in domestic animals respiratory tracts
2000
Nummert, A. (Estonian Agricultural Univ., Tartu (Estonia). Inst. of Veterinary)
Respiratory tracts' obstructions make up a significant part of domestic animals organ systems pathologies. Though obstructions do not always cause animals death, they still affect animals productivity and/or working capability. Obstructions are also predispositions to various lung diseases. Organisms resistance plays an important part in getting affected by respiratory tract diseases. Inflammation which arises in respiratory tract, can be caused by cold, low quality feed, phatogenic microbes and viruses, for instance. As a results of forming pathology, hypoventilation develops. Respiratory tract's defence mechanisms play an important part in the progression of the disease. These defense mechanisms include so called cleansing mechanisms in upper respiratory tract and phagocytosis in lower respiratory tract. If there is no attention payed in time to main clinicalsymptoms like decrease in productivity and/or working capability, cough and secretion flow from nose, the disease may become irreversible - COPD develops
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Эту запись предоставил Estonian University of Life Sciences