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

Document Type : Primary Research paper


Department of Animal Production, College of Agriculture, Al-Qasim Green University, Iraq.


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 .