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Studies on Localization of the Enzyme Histochemistry in Tissues of Sheep and Cattle

Ding Boliang(Department of Veterinary Medicine, Northwestern Afjlctthueal University') A. Newton R.M. Barlow(Department of Pathology, Royal Veterinary CoUeKe.Halfeld.England)  
T. ilcum, liver, kidney, lung, spleen and lymph node tissues from ten freshly-slaughtered sheep and ten freshly-slaughtered cattle are selected to carry out the comparative study of the normal locations and activity of 5 enzymes in tissues. The results indicate that the enzyme activity of T. ilcum and kidney in sheep and cattle was concentrated in the most apical portion of the villus epithelial cells and convoluted tubules; in livers, levels for different enzyme activity were strong in the hepatic cells; in the lung, these enzyme patterns were demonstrated in the respiratory cpithclia of bronchiolus; in the spleen, ALPase was distributed in the white pulp, but ACPasc was strong reaction in the red pulp; in the lymph node, ALPase and SDH activity was concentrated in the lymphonodulus, but ACPasc and NSE activity was extremely strong in the medullary cord.
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