Al-Qadisiyah Journal For Agriculture Sciences

This study was conducted in broiler field / college of Agriculture/ Tikrit University during 9-4 to 14-5-2019 to know the effect of adding lemongrass leaves powder to the dietary on meats traits of broilers. 135 chicks Ross-308 were distributed randomly to three treatments, each treatment divided into three replicates (15 birds per replicate). T1 was standard treatment; T2 and T3 were added 1g and 2g of lemongrass per one kg of diet, respectively. The results showed a significant decrease (P≤0.05) in T2 compared with other treatments in cooking loss and water holding capacity, otherwise, T2 increased significantly (P≤0.05) in the thawing loss compared with T1, the treatments did not differ significantly in the dripping loss. T2 and T3 increased significantly in protein percentage compared with T1, while these treatments were decreased significantly (P≤0.05) compared with T1 in the fat and moisture percentages, the per cent of meat ash did not differ significantly among treatments. The Peroxide Value, Thiobarbituric acid and Free Fatty Acids significantly increased (P≤0.05) in T2 and T3 compared with T1. The percentage of all fatty acids like linoleic, oleic, stearic, palmitic and linolenic increased significantly (P≤0.05) in T2 and T3 compared with T1. We conclude from this study that adding lemongrass powder to broiler diets improved most of the physical and chemical traits of meat.

This study is conducted at the poultry farm College of Agriculture - University of Muthanna from 28/2/2013 until 3/4/2013 to study the effect of nutrition systems and exchange of diets on some productive performance of broilers. Three hundred broiler chicks(Ross),are a day old. are used in this experiment The birds are distributed to three treatment groups with four replicates per treatment (100 birds per treatment). The treatment groups are as follows:
1. First Treatment; Three diets are given to the birds starter diet for the(1-15 days), grower diet for the (16-28 days) and finisher (29-35 days).
2. Second Treatment: Two diets are given to the birds starter diet for the (1-21 days) and finisher diet for the (22-35 days).
3. Third Treatment: One diet were given to the birds for the whole period of age (1-35 day)
The results show a significant increase (P ≤ 0.05) in live body weight, weight gain, feed conversion ratio, production index and dressing percentage were recorded for the broiler supplemented with three diets given are to birds (First Treatment)as compared with third treatment (One diet given to birds). The third treatment has a significant increase (P ≤ 0.05) in the same traits as compared with the second treatment.