title: Experience of using stimulating feeding for honey bees "BiHit" in the Moscow region and the Republic of Crimea
abstract: Unfavorable environmental factors: pesticides, chemicals, poor nutrition of bee colonies lead to a decrease in the bee's immune defense. Currently, there is a continuous search for biologically active substances that stimulate the vital activity of bees and increase the egg-laying of queens. Analysis of scientific sources data has shown high efficiency for stimulating the viability and increasing the productivity of bees of such biologically active additives as chitosan and its derivatives, prob
journal: Veterinaria i kormlenie