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Indurative Lymphocytic Mastitis in Sheep Infected Naturally with Ovine Lentivirus

Deng Puhui; Jian Zijian; Liu Jumin; Ahemaiti(xinjiang August First Agticultural College,Urumqi 830052)  
Seven sheep(five Border Leicester sheep,one Lincoln sheep and one Hetian sheep)from asheep farm,infected naturally with ovine lentivirus (OvLV)were used in this study. The antibodies againstovine progressive pneumonia virus (OPPV) in sheep sera were detected by using agar gel immunodiffussion(AGID)test,six sheep were seropositive,one Hetian sheep was seronegative,the antibody titer showed a de-creasing tendency within three years, Four seropositive Border Leicester sheep and one seronegative Hetiansheep had indurative (fibrotic) lymphocytic mastitis of different severity,there were more or less lymphocyticinfiltrations in the lobular interstitium, massive fibrotic proliferation in the interlobular interstitium and nolymphoid follicule formation surrounding ducts. No lesions specific for OvLV infection were found in thelungs,brains,joints and blood vessels in seven cases. OvLV had not been isolated from peripheral blood leuko-cytes in seropositive sheep.
【Fund】: 国家自然科学基金
【CateGory Index】: S858.267.1
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