Document Type : (original research)
Department of animal science, University college of agriculture and natural resources, University of Tehran, Karaj, Iran
Department of Animal Science, Faculty of Agriculture and Natural Resources, Tehran Science and Research Branch, Islamic Azad University, Tehran, IR Iran.
Department of Animal Science, Faculty of Agriculture and Natural Resources, Tehran Science and Research Branch, Islamic Azad University, Tehran, IR Iran
This study was aimed to investigate whether bee colonies can use the starch and how the Protexin can influence the feed consumption, hive population, and mortality at farm and cage conditions. For this purpose, 36 hives were randomly allocated into six different groups and fed with one of the experimental treatments as the first experiment. The control group has only received sugar syrup, In the second experiment, the newly emerged bees were kept in a cage and incubated for 21 days. After hatching they were also fed with the above-mentioned experimental treatments. At the end of both experiments, feed intake hive adult and larvae populations were evaluated before and after overwintering. In the 2nd experiment the consumption of sugar syrup, sugar paste, and the rate of bee losses during the cage storage period. The results of the 1st experiment showed that the group S20P1 has higher egg production and feed intake when compared to the other groups (P≤0.05). Moreover, the feed intake of S20P and S10P was statistically higher than S20 and S10 respectively (P≤0.05). based on the results of this study, Based on the results of the second experiment, the sugar syrup consumption in the first and second weeks was not statistically significant. Cumulative consumption of sugar syrup was higher in S10P and S20P groups than in the control group. Honey bee losses in the third week and cumulative mortality were the lowest in the S20P group compared to the S20 group (P≤0.05).