eng Ansari Education and Research Society Journal of Ultra Scientist of Physical Sciences April 2009 21 1 121 124 jusps-B 1084 article The Effect of Sublethal concentration of Cadmium Chloride on the Alkaline Phosphatase and Protein in Gills and Muscle of Oreochromis niloticus Collected from Wadi Hanifa Stream Riyadh, Saudi Arabia Ibrahim N. Al-Suwiti (Ibrahim333@hotmail.com 1 Department of Zoology, College of Science, King Saud University, P.O.Box 2455, Riyadh 11451 (Saudi Arabia) <p style="text-align: justify;">The freshwater fish <em>Oreochromis niloticus,</em> were exposed to cadmium for 18 days Alkaline phosphates and protein in gills and muscle were measured. The activity of (ALP) increased significantly in treated tissue compared with those of control, but the activity of protein is significantly decrease with those of control. These results revealed that cadmium effect the metabolism of <em>O. niloticus</em> and the enzyme (ALP) can work as good biomarker of contamination.</p> <p>&nbsp;</p> https://ultraphysicalsciences.org/paper/1084/ Cadmium chloride Alkaline phosphatase (ALP) Protein O. niloticus