1,721,012 research outputs found
Tollerabilità locale ad alcuni adiuvanti e vaccini inattivati utilizzati in campo avicolo
No full text
Osservazioni su casi di atrofia del timo in piccioni da carne
No full textThymic atrophy in meat pigeons. Gross and microscopic changes, observed in 28-30 day old pigeon during a survey in a slaughterhouse in the Centre of Italy, are described. The main feature was a severe atrophy of the thymus. In several cases it was difficult to find it. Histological study of the thymus showed the presence of lymphoid depletion and necrosis. Ultramicroscopy findings revealed severe changes in the thymic lymphocytes, both the cytoplasm (swelling and vacuolar alteration of mitochondria) and the nucleus (breakage of the nuclear membrane, picnosis, karyolysis and karyorrhexis). Histological changes of the bursa of Fabricius were characterized by a variable atrophy of lymphoid follicles. At times cysts of different size were evident and the connective tissue stroma was increased
Osservazioni sugli effetti indotti a carico della trachea da un vaccino della Bronchite Infettiva singolo o combinato con quello della Pseudopeste
No full textUna particolare forma di malattia degli edemi nei broilers.
No full textA study has been made of a disease condition in broilers resembling the chick edema disease. In general, it was found that the main lesions in the birds were ascites, hydropericardium and liver changes of different degree
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