Abstract
Recently, many farms are increasingly using such a reserve of intensification of feed production as the cultivation of new low-spread varieties of feed crops. In this regard, sorghum, a widespread crop of southern latitudes, is attracting more and more attention. Sorghum crops due to their high heat and drought resistance, unpretentiousness to soils and low demands on nutrients, can replace cereal crops such as wheat, barley, corn, etc. The article is devoted to the study of the chemical composition and nutritional value of 15 sorghum varieties grown in the Stavropol Territory. The originator and patent holder of all these varieties is Federal State Budgetary Scientific Institution “North Caucasian Federal Scientifi c Agrarian Center”. The results of the study of these sorghum varieties in the laboratory of physiology and biochemical analysis in the Siberian Scientifi c and Research Institute of Poultry showed that the nutritional value of sorghum grain has diff erences both in varieties and in comparison with the average data specifi ed in the reference manual for poultry feeding. The varieties Zersta-38A, Knyazhna, A-63, Pharaoh, KiM, Ayushka, Athlete, Stavropol-63 and Krusta turned out to be the richest in crude protein content, but at the same time crude fat content and metabolic energy in them are less than those indicated in the methodological guide. Based on the results obtained, experimental compound feed recipes for broiler chickens and laying hens have been developed with the inclusion of varieties of different nutritional values and doses of sorghum grain with the possibility of partial or complete replacement of wheat. The conducted research is of interest because poultry is a competitor of humans in wheat consumption in order to save the traditional widely used grain crop.
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