Possibility studying of soy meal and feed yeast and fishmeal replacement with protein biomass in broiler feed

It have been established in experiments with broilers that protein biomass usage in their feed 2 to 7% of feed mass for partial replacement of fishmeal or soy meal or feed yeast gives possibility to ensure poultry body weight comparable to control with high livability and good feed conversion without negative effect on broiler bone system quality. It have been proved that calcium and phosphorus deposit rates and total bone mineralization in experimental poultry have been comparable to control when soy meal partial replacing or feed yeasts full replacement. Phosphorus level has been decreased by 0.56 and 0.44% respectively when partial or full fishmeal replacing with protein biomass, but there were no significant differences with control in calcium and raw ash content.