Physiological response study to adding different levels of Lemon grass Cymbopogon citratus leaves powder to the diet and its extract in drinking water of broiler chickens

This experiment was conducted at the poultry farm of the college of agriculture, university of Al-Qasim green for the period from 18/9/2019 to 23/10/2019. In experiment, 225 unsexed broiler chicks, which obtained from Al-Anwar hatchery, it the were randomly distributed to 15 pen, with 5 experimental treatments,45 birds for each treatment. Each treatment included three replicates per 15 birds. The treatments of the experiment were as follows: First treatment: control group without any addition . The second treatment: a basal diet + 10 gm of lemon grass / kg feed, the third treatment: a basal diet + 20 gm of lemon grass / kg feed, The fourth treatment: adding 100 ml of the aqueous extract of the lemongrass / liter of drinking water, and the fifth treatment: adding 200 ml of the aqueous extract of the lemongrass liter of drinking water. The experiment included studying the following parameters : Total protein, Albumin ,Globulin, Glucose , ALT , AST, Cholesterol ,Triglycerides ,High-density lipoproteins (HDL), Low-density lipoproteins (LDL), and (MDA) of Malondialdehyde . This results of the experiment showed a significant improvement for the treatments by addition lemongrass leaves (third and fifth) in the concentration of total protein, Albumin and Globulin, and a significantly decreased for the treatments(T3, T4 and T5) in the concentration of Glucose compared to the first treatment (control) and the second treatment. as for the concentration of liver enzymes . The treatment of adding lemongrass leaves (T2, T3, T4 and T5) showed a significant decrease the levell of cholesteroll and triglyceridesd concentrationk levell as well as low-densityk lipoproteinso and the level9 of Malondialdehydek (MDA) and an increasek in the level of higho-densityl lipoproteinsk in the bloodk of birdsj compared to the first treatment control .