Kondratyuk V. Digestibility forages, a metabolism and productive qualities at quails at different levels of vitamin A in mixed fodder

Object - quails of the japanese breed of an egg direction of efficiency for a different level of an A-vitamin feed. The purpose - to establish optimum levels of vitamin A in mixed fodders for female quails of the japanese breed for maintenance more an effective utilization of a forage and quality of received production. Methods - zootechnical, biochemical and statistical. Novelty - for the first time is carried out a comparative estimation of productive qualities of female quails of an egg direction of efficiency on a level of vitamin A in mixed fodder. The new data be relative digestion the basic nutrients of a forage, an exchange of nitrogen, calcium and phosphorus in an organism of female quails are received. The data on influence of different levels of an A-vitamin feed quails on concentration of vitamins A, Е and carotinoids in eggs, a liver and blood are expanded. It is established, that increase of vitamin A in a diet of female quails assists increase of his contents in a liver. It is established, that use in feeding female quails of mixed fodder with contents 12 thousand IU vitamin A in 1 kg provides the highest egg efficiency of female quails and their safety, improves food and incubatory qualities of eggs, and also reduces expenses of a forage for their manufacture. Results of researches - are used in practice, educational process and research work. Area - animal industries.