Document Type : Primary Research paper
Agriculture College, Al-Qasim Green University, Babylon, Iraq
This study was conducted in the field of domestic birds / Department of Animal Production / College of Agriculture - Al-Qasim Green University for a period of 6 weeks from 1/11/2021 - 15/12/2021, preceded by two weeks to train roosters to collect semen, to study the effect of adding the aqueous extract to lemongrass leaves in different levels on the reproductive characteristics of males of meat broiler mothers (Ros 308) at the age (50) weeks and by 16 roosters, the roosters were randomly divided into 4 treatments with 4 replications, each replicate included only one rooster. The treatments were as follows: The first treatment was the control group without adding, the second treatment was adding 200 ml of aqueous extract of lemongrass leaves/L of water, and the third treatment was adding 300 ml of aqueous extract of lemongrass leaves/L of water, the fourth treatment was adding 400 ml of aqueous extract For lemongrass leaves/L of water. The following results were: T3 treatment was significantly (P < 0.05) excelled in red blood cells over T1 and T4 treatments. T2 and T3 were significantly excelled in haemoglobin, hematocrit, testosterone, LH and white blood cell counts significantly (P < 0.01) compared to the T1 and T4, a significant improvement (P < 0.05) for T3 treatment increase in the albumin compared to T1 and T4 treatments. The treatments (T2, T3 and T4) showed a significant (P < 0.01) excelledity in the percentage of globulin compared with the control treatment. A significant improvement (P < 0.05) in the percentage of total protein in the T2, T3 and T4 treatments compared to the control treatment.