Change of exchange energy in fodder food with the content of quarters

The article presents the results of a study on quails of the Pharaoh breed, which received mixed feeds with different levels of metabolic energy, their effect on egg productivity, physiological state of the bird, feed consumption, profit and production profitability. An increase in metabolic energy by 41.86 kJ in the feed of the first experimental group contributed to a decrease in average daily feed intake by quail by 6.3 %, while there was a superiority in egg production by an average laying hen of 1.6 %, in average egg weight - by 2,7 % compared to control. With a decrease in metabolic energy by 41.86 kJ in the 2nd experimental group, females due to an increase in feed intake by 3.7 % were able to compensate for the consumption of nutrients for the formation of eggs. As evidenced by almost equal to control egg production and egg mass. In the 1st experimental group, due to higher productivity, the proceeds from the sale of eggs increased by 1.9 %, which affected the reduction in the cost of 10 eggs - less by 1.1 % compared with the control group. In the 2nd experimental group, the gross production of eggs and egg mass decreased by 3.3 and 6.2 %, the cost of feed consumed decreased by 9.5 % due to the lower cost of 1 ton, therefore, the total cost of egg production decreased by 3, 0 % compared with the control, the cost of 10 eggs reached almost the level of control - a difference of 0.5 %.