In the paste, the primary focus of researches regarding the effect ofman made chemicals has been on their capacity to act as mutagen or toinduce gross abnormalities after administering, and that withoutregarding to disruptive effects of these chemicals in organism body,therefore, today the world toward to biochemical studies to evaluate theeffects of medicinal plants on different metabolism in organisms.Hawthorn leaves, berries and bossoms contain biologically activeflavonoid and their glycosides, triterpene saponins and amines as themain constituents, these constituents probably contribute collectively tothe hypocholesterolemic effect of TCR, and it was used in herbal medicine as a heart tonic, hypertension, angina pectoris, arthritis, rheumatism, sedative and in treatment insomnia. Today, hawthorn is used primarily for various cardiovascular conditions.The animals were distributed to five group:NG: Normal group (20 rats) received normal diet, AG:Atherogenic group (20 rats) rats received atherogenic diet, the otherthree groups TAG: treated atherogenic group (20 rats each) rats werereceived atherogenic diet and administered Egyptian TCR sinaica extract daily by a doses of 0.25, 0.5 and l.0 ml/lOOg. b.w respectively for 3 and 6 weeks.’I) : Organophosphorus Insecticide Residues in Animal Feed.The results of this experiment showed that the orgnophosphorushsecticides detected in green fodder were Diazinon , Methamidophs,alathion , Pirimiphos-methyl and Chlorpyrifos. The first 3 compoundsere detected in both winter and summer seasons with mean values of.0022 , 0.0013 and 0.0191 ppm at winter season and 0.0024,0.0071 and.0402 ppm at summer season, respectively. Pirimiphos-methyl andhlorpyrifos were detected in summer only with mean values of 0.0002d 0.0013 ppm , respectively.Concerning to concentrated mixture , the results showed theresence of organophosphorus residues in winter as well as summer. Theean values of organophosphorus insecticide residues detected in the