BIOCHEMICAL STUDIES ON THE LIQUID YEAST DIET (Candida tropicalis) AS A NEW POLLEN SUBSTITUTE IN HONEY BEE COLONIES

Document Type : Original Article

Authors

1 Dept. of Economic Entomology and Pesticides, Fac.. of Agric. Cairo Univ., Giza, Egypt.,

2 Dept. of Apiculture, Plant Protection Res. Inst. Agric. Res. Center, Dokki, Giza, Egypt.

Abstract

The liquid yeast diet (Candida tropicalis) was used as  a new pollensubstitute in queenless builder colonies at 25% concentration, to study their effects on some biochemical changes in the haemolymph of nurse worker bees (unknown age) collected from open queen cells. 
The obtained results indicated higher levels of total protein, ALT, AST enzymes and protein bands in the haemolymph of the tested bees. The liquid yeast diet can be used as effective pollen substitute in honeybee colonies to produce high quality of royal jelly and virgin queens.