ABSTRACT
In order to determine the involvement of nitric oxide in the pathogenesis of coccidiosis induced by Eimeria, 30 chickens were challenged with mixed sporulated oocysts of four species of Eimeria [E. acervulina, E. maxima, E. necatrix, andE. tenelld] at 26 days of age. There was an increasing of oocyst shedding in the infected birds at 6, 10 and 14 days post-infection. Histopathological examination revealed a loss of epithelial tissue, congestion of blood vessels, severe muscular edema and necrosis of submucosa. The sum total of nitrite and nitrate was increased in the serum at 6,10 and 14 days post-infection progressively, but was only significant [P < 0.05] at 10 and 14 days post-infection compared to earlier days. The nitrate amounts were also significantly higher at days 10 and 14. It can be concluded that infection by four species of Eimeria stimulated NO production after infection. It is therefore possible that NO is involved in the pathogenesis of coccidiosis
ABSTRACT
A case report of multicentric lymphoma in a dog. An eleven-year-old German Shepherd dog. Diagnosis was confirmed on the basis of clinical signs, laboratory and radiographic findings and histopathologic studies. An 11-year-old female German Shepherd dog was refered to Veterinary Clinic of University of Shiraz with signs of weakness, inappetance and weight loss. Clinical examinations revealed fever and generalized lymphoadenopathy. Hematologic findings showed lymphocytosis. Multicentric lymphoma was diagnosed using histopathological studies of lymph nodes, bone marrow and internal organs
ABSTRACT
This study was undertaken to investigate the prevalence and characteristics of uterine tubes abnormalities in dromedary camels. The uterine tubes of genital tracts of 96 slaughtered non-pregnant camels were examined grossly and microscopically. The pathological changes observed were salpingitis [2.08%], uterine tube duplication [1.04%], accessory uterine tubes [1.04%], segmental aplasia and hydrosalpinx with cystic hyperplasia of the uterine tubes, ovary and uterus [1.04%]. The effects of these abnormalities on fertility of these camels were not detected because the history of their reproduction was not available. In the present study, for the first time, uterine tube duplication, accessory uterine tubes and simultaneous occurrence of cystic changes in uterine tubes, ovary and uterus were reported in dromedary camel