The article discusses the changes in the concentration of total protein and albumin in blood serum of chickens on 12 and 22-day age of egg cross UK Kuban 456 under the influence of various levels of imbalance of amino acids in the diet produced by a deficiency (60% and 25%) of the limiting amino acid threonine and feeding by a monograin ration. At chickens receiving sterns with 25 % deficiency of amino acid threonine quantity of the total protein and albumins in blood serum raises. At chickens receiving sterns with 60 % deficiency of amino acid threonine and feeding by a monograin ration the amount of total protein and albumin in serum decreases. Water content in the tissues of the body had inverse dependence with the total protein of a blood.
Key words: threonine, chickens, total blood protein, albumins, amino acids imbalance, humidity of tissues.
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Responsible for correspondence with the editorial board: Radul Aleksey P., Ph. D. in Biology, docent of the department of physiology and feeding of agricultural animals of the Kuban State Agrarian University; 135/25, Rozhdestvenskaya naberezhnaya st., Krasnodar, 350089; phone: 89183237612; email@example.com.