Following experimental inoculation of 3-week-old turkeys with different titres (106, 104, 103, 102 and 101 egg infectious dose (EID50)) of A/ostrich/Italy/984/2000 H7N1 highly pathogenic avian influenza virus (HPAIV), the selected tissues and organs were examined for pathological changes. Tissue samples from different organs that obtained from dead and sacrificed birds were fixed in 10% neutral...

The literature concerning the association between ants and the mealybugs causing pineapple wilt disease is surveyed. A great deal of data on this subject has been published in the relatively obscure technical papers and reports of the defunct Pineapple Research Institute of Hawaii. This review article is an attempt to bring this information to a broader audience and examine it in the context of...

the study monitored the toxicity of environmentally relevant concentration of pesticides and metals in zebra fish danio rerio. zebra fish were exposed to environmentally relevant concentration of pesticides and metals for a period of 14 days. the individual and the combined toxicity of pesticides and metals were evaluated. the pesticides and metals treated groups showed histopathological altera...

The aim of the present study was to investigate the effect of copper oxide nanoparticles (CuO-NPs) and copper ions (Cu++) on guppy (Poecilia reticulata), in order to assess Cu uptake in the gill, and histopathology of gill and intestinal organs in semi-static regimes for 10 days. Guppy fish were assigned into three groups; one control group, and two experimental groups receiving 20 µg/l of eith...

coccidiosis and gizzard erosion are rare conditions in cage bird. a male zebra finch was presented with a history of watery diarrhea, anorexia, ruffled feathers, weight loss, and lethargy and died finally. gross necropsy revealed small areas of erosions and hemorrhages on the gizzard wall. the intestine was oedematous. the spleen appeared pale and small. the testes were asymmetric.histologicall...

the cultivars green mignonette and all year which are resistant and susceptible to fusarium wilt, respectively were studied for histopathological aspect during the development of fusarium oxysporum f. sp. lactucum. 15 days - old seedling was inoculated by root dip method in spore suspension of the pathogen with concentration about 5 x 106 spores/ml. sampling was carried out at different times (...

introduction: open-apex teeth with irreversible pulpitis require complex and difficult treatment. providing the right environment for apexogenesis and pulp protection is vital for their long term prognosis. the young pulp of open apex tooth, however, is better equipped against irritation and assault. the aim of this study was to evaluate pulp inflammation in open apex canine teeth of cats. mate...