Abstract
The article presents the results of analyzes of the chemical, amino acid, mineral, vitamin composition of flax cake of the Kazakh variety «Kostanayskiy 11». A recipe for a complete feed for broilers with the introduction of flaxseed cake and a premix based on vermiculite filler has been developed. The optimal rates for the in troduction of flaxseed oil into the recipe for a complete feed for broilers aged 29-56 days have been determined. The proposed recipes for mixed feed for broilers using flaxseed cake of the Kazakh variety «Kostanaysky 11» and a premix based on vermiculite filler in feeding poultry will make it possible to balance the rations not only in protein and mineral composition, but also partially replace expensive soybean meal, thereby reducing the cost of compound feed.