The effect of Prunus Mahaleb seed extract on the productive efficiency indicators of broiler chickens

Abstract

This experiment was conducted to study the effect of Prunus Mahaleb seed extract on the productive efficiency and its effect as an antioxidant in broiler hybrid strain (Ross 308). The methanol extract was prepared from Prunus Mahaleb seeds and added to the drinking water of five experimental groups of broiler chickens raised in a battery system. Each group contained (30) birds with three replicates, and the addition of the extract to the groups was in the following proportions: (0, 32, 64, 125, 250) μg/ml. The value of the inhibitory concentration of half of the free radicals (IC50) of the extract was (6.068) mg/ml. The results showed that there was no effect of the mahlab seed extract on the amount of feed consumed, although the birds of the fourth group (125) μg/ml showed a slight decrease in feed consumption, but they had the highest weight at the end of the experiment with the birds of the fifth group (250) μg/ml, and values reaching (2431 , 2433) g respectively, with significant differences compared to the control (P≤0.05), The birds of the fourth group showed a decrease in the feed conversion factor with insignificant differences during the five weeks (P>0.05) , but it became significant (P≤0.05) at the end of the experiment