Effect of dietary licorice extract on some physiological and productive traits of Ross 708 broiler chicken
Journal Title: INTERNATIONAL JOURNAL OF CURRENT RESEARCH - Year 2016, Vol 8, Issue 8
Abstract
The study was conducted in Kalar Technical Institute to investigate the effect of dietary licorice extract of Ross708 broiler chicks using (100) birds one day age and the duration of the experiment was 60 days, started from 02/15/2015 to 04/15/2015. Four treatments used in the experiment (the first treatment control 0 g licorice extract / kg feed), the second, third and fourth treatments are (1, 1.25, and1.5 gm licorice extract / kg feed) respectively. Birds were divided randomly into four groups on the four treatments, each group containing 25 birds, each group divided to the three replicates, chicks reared on the ground in the hall under same healthy conditions for broiler chickens and were supplied with regular lighting. Used Wood pens with dimensions (1Mx2M) per room and each replicates contain (8 birds). Treatment licorice extract led to a significant increase in the number of red blood cells (RBC) and packed cell volume(PCV%) and hemoglobin (Hb) concentration and the number of white blood cells (WBCs) in comparison with control. T2recordeda significant increase in the primitive body weight (the age of the first week) and to increase the final body weight. A significant decrease in weekly feed consumption and feed conversion ratio (FCR) in the birds of the second treatment. Also, treatments with licorice led to significantly (P ≤ 0.05) improve of bird immunity against Newcastle disease as HI -ND Titers in T2, T3, and T4 in comparison with control. We conclude through the study that the dietary licorice extract led to a significant improvement in the performance of broiler chickens and increase immunity response against Newcastle disease virus.
Authors and Affiliations
Mahmood H. M. Amen, Sarmad S. Muhammad
Keywords
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