The effect of egg yolk powder on functional, biological and pathogenic traits in bee colonies

This experiment was performed to investigate the effect of egg yolk powder on the performance and biology plates of the bee clinic in an apiary for 60-90 days. The statistical format of the design is completely random and four experimental groups include control treatment (pollen cake without adding egg yolk powder), feeding treatment with sugar syrup without adding pollen cake, pollen replacement cake treatment with 50 grams of egg yolk powder Chicken per kilogram of pollen cake and cake substitute treatment with pollen with 100 grams of egg yolk powder per kilogram of pollen cake. The measured traits included queen spawning rate, population measurement, carcass weight determination, carcass crude fat size, hive honey content and pollen content. The results showed that the effect of food treatments on pollen content (P ≤ 0.01), carcass fresh weight (P ≤ 0.01), carcass dry weight (P ≤ 0.01), Population measurement (P ≤ 0.01), body's fat content (P ≤ 0.01) and honey production rate (P ≤ 0.01) is effective. But in queen egg laying rate and terms of number of larvae and pupae, no significant effect was observed. According to the results of this study, the treatment of pollen replacement cake with 50 grams of egg yolk powder per kilogram of pollen cake is reported to be useful and can be recommended to beekeepers.