寧夏某肉牛場(chǎng)牛支原體分離鑒定及病理組織學(xué)觀察
[Abstract]:In order to isolate and identify Mycoplasma bovis in a beef farm in Ningxia and analyze the damage of the pathogen to the target organ, Thiaucourt's liquid screening medium and solid medium were used to isolate the pathogen. 16SrRNA universal primers and uvrC specific primers for Mycoplasma bovis were designed to amplify the gene sequence and sequenced. The sequence of isolated strains was compared with that of standard strains in GenBank by DNA Star software. The phylogenetic tree of isolated strains was constructed by Neighbor-joining,NJ in MEGA6.0 software according to 16SrRNA and uvrC sequences, and the phylogenetic analysis was carried out. Paraffin sections, HE staining and histopathology were used to observe the phylogenetic tree. The results showed that the pathogenic bacteria were like fried eggs, the 16s rRNA and uvrC amplified fragments were consistent with the positive control, and the phylogenetic tree constructed by 16s rRNA and uvrC gene sequence was in the same branch as Mycoplasma bovis. The pulmonary tissue structure disappeared, partial alveolar cavity consolidation, collapse, focal pulmonary hemorrhage, inflammatory cell infiltration in alveolar cavity, alveolar septum thickening, hemorrhage, a small number of exfoliated epithelial cells in the alveoli. Alveolar wall rupture, alveolar cavity visible red inflammatory exudates, fibrous connective tissue proliferation.
【作者單位】: 寧夏大學(xué)農(nóng)學(xué)院;
【基金】:寧夏科技攻關(guān)重點(diǎn)專項(xiàng)項(xiàng)目(312-0164)
【分類號(hào)】:S852.62
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