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Volume 4, Number 1 >


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Authors: FUJIMOTO, Yutaka Browse this author
OHSHIMA, Kan-ichi Browse this author
SATOH, Hiroshi Browse this author
OHTA, Yoshio Browse this author
Issue Date: 26-Mar-1956
Publisher: The Graduate School of Veterinary Medicine
Journal Title: Japanese Journal of Veterinary Research
Volume: 4
Issue: 1
Start Page: 17
End Page: 32
Abstract: The authors pathologically investigated 10 cases (8 natural and 2 experimental cases) concerning a disease of unknown cause in dairy cows in Monbetsu City, Hokkaido. The results obtained were as follows. 1. Natural cases were considered to be chronic mercury poisoning and all cases showed mercury in tissues. 2. The clinical and pathological changes in the first experimental case (Case 9) were considerably similar to those of the natural cases and were considered to be due to chronic mercury poisoning. 3. The second experimental cases (Case 10) was considered to be subacute mercury poisoning. 4. In the natural cases, subacute interstitial nephritis, subacute catarrhal bronchitis, enlargement and edema of general lymph nodes, enlargement of splenic follicles, subendocardial and subepicardial hemorrhages, depilation and circum-scribed dermatitis, general hyperemia and hemorrhages, sometimes focal hepatic necroses and slight liver cirrhosis were anatomically noticeable. 5. Histopathologically, the activities of the reticuloendothelial system in a wide sense, such as general histiocytic cellular proliferation and giant cell formation were obesrved. Interstitial cellular reaction in the kidneys, connective tissue proliferation with cellular accumulation in GLISSON'S sheath, catarrhal lymphadenitis, the enlargement of Malpigian corpuscles in the spleen, focal hepatic necroses, degeneration of epithelial cells in the renal convoluted tubules, subacute catarrhal bronchitis, endophlebitis oblilerans et productiva, subendocardial and subepicardial hemorrhages, catarrh, congestion and hemorrhages in the alimentary canal and circumscribed dermatitis were noted. 6. The disease was considered to be a chronic mercury poisoning caused by linseed meal produced from linseed which had been treated with Ceresan (a mercurial fungicide).
Type: bulletin (article)
Appears in Collections:Japanese Journal of Veterinary Research > Volume 4, Number 1

Submitter: 獣医学部図書室

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