"secretions" - 1 õppematerjal

Infectious bovine keratoconjunctivitis 2019

Moraxella bovis is not capable to move but can cause the destruction of red blood cells (M.H. Brown et al. 1998). All Moraxella isolates of veterinary importance, including Moraxella ovis, Moraxella bovis, and Moraxella bovoculi, have the ability to form biofilms. Researches have shown that biofilms are related to the chronicity because of the increased antimicrobial resistance and it is considerable defence mechanism for being washed away or destroyed by bovine tear secretions. One of the main defence factors in the bovine tear is lysozyme. Studies have shown that lysozyme have ability to reduce the production of biofilms, but do not have the capacity to destroy the preformed biofilms (Ely et al., 2017). In addition to the tear film there are other protection factors such as epithelium, phagocytic cells, local secretory antibody. Cornea and conjunctiva epithelial surface are an effective barrier against bacteria invasion