عنوان مقاله [English]
This study investigated Echinacea purpurea herbal extract in honey bee nutrition and its effect immune system including measuring total haemocyte counts and phenoloxidase enzyme. 28 colonies were randomly divided into 4 treatments and 7 replicates.1- sugar syup – control, 2- sugar syrup enriched with 10 cc extract 3- sugar syrup enriched with 20 cc extract, 4- sugar syrup enriched with 30 cc extract. This experiment was conducted in the laboratory and Apiaries University of Tehran-Karaj in completely randomized design repeated in time during spring and summer of 2013. The results showed treatments had a significant effect on phenol oxidase enzyme activity in short and long-term immune (p<0.05), the enzyme was higher in bees that get sugar syrup enriched with 30 cc extract and lower in bees that get sugar syrup. In total haemocyte counts treatments had significant effect in short-term (p<0.05), the factor was highest was in bees that get sugar syrup enriched with 20 cc extract and lower in bees that get sugar syrup.too was observed that higher in bees that get sugar syrup enriched with 30 cc extract and lower in bees that get sugar syrup in long immune. The results showed that this extract had a positive effect on the immune system.