According to modern phylogenetic theory of general pathology (V.N. Titov, 2003, 2013) inflammation is a nonspecific biological reaction, providing the removal of excessive amount of highmolecular macromolecules and maintenance of metabolic homeostasis (endoecology). The increase of any metabolite concentration above the physiological range is a violation of the «purity» of intercellular medium. This triggers two nonspecific biological reactions, namely the excretion used to remove «biological waste» of a molecular weight less than 70 kD and the inflammation in case the larger molecules and their complexes should be removed via neutrophils, resident macrophages and endothelial cells. Blood concentration of leukocytes has been used for evaluation of inflammation and intoxication activity for many decades. However, at the molecular level there is a requirement in precise differentiation of metabolites, activating leukocytes, and metabolites, excessively forming as a result of activation, because the last disturb molecular homeostasis and may damage cells and tissues. Validity of leucocytal intoxication index (LII) of Ya.Ya. Kalf-Kalif, concentration ratio of low and medium molecular weight substances, average molecular peptides, total and effective albumin as markers of endogenous intoxication (M.Ya. Malakhova, 2005) are considered. It is shown that primary agent, activating neutrophils and some factors of humoral immunity, is a lipopolysaccharide (endotoxin) of gram-negative microflora (M.Yu. Yakovlev, 2003; O.W. McIntyre, 2011). An excess of endotoxin inflow is possible under intestine and liver pathologies, and due to sympathoadrenal system activation, and also with feed and air. The overload of systems and organs of elimination of endotoxin causes secondary immunodeficiency, which becomes the cause of acute and chronic inflammatory processes of various localizations. It is offered to consider lipopolysaccharide of gramnegative microflora as a primary agent of endogenous intoxication and all the metabolites, produces at increased concentrations as a result of polymorphonuclear leukocytes activation such as reactive oxygen species, oxidated proteins, products of lipid peroxidation and proteolysis, as a secondary one. Such an approach allows to single out various points of application for therapy of endogenous intoxication: i) elimination of excessive concentration of lipopolysaccharide in blood by limiting its production and income from internal and external sources, as well as by a variety of methods of active binding and excretion of endotoxin (S.V. Smirnov et al., 2003; K. Battenschoen et al., 2010); ii) reducing the concentration of «secondary» metabolites in blood and tissues.

A b s t r a c tInflammatory diseases of the respiratory and gastrointestinal tracts are the actual problem of veterinary medicine. Innate or natural immunity plays the leading role in the initial reactions to microbial agents contaminating sterile mucous membranes of newborn animals. It is implemented through the activation of cellular and humoral factors of nonspecific resistance. Leukocyte concentration, leukogram, content of cationic proteins in neutrophils, blood serum lysozyme activity (BSLA) were studied in 20 red-motley calves in 1 hour after their birth on the days 2, 5-7 and 14-15 of life, together with an impact of these indices on the terms of appearance and clinical course of inflammatory diseases of the respiratory and gastrointestinal tracts, under conditions of a large dairy complex environment (Voronezhpishcheprodukt Co Ltd, Novousmansky district, Voronezh region) in 2014. Blood sampling was implemented in the morning before feeding from the jugular vein. Body temperature, pulse and respiratory rate, state of the visible mucous membranes, time of appearance and intensity of sucking reflex, the presence and nature of cough, dyspnea, nasal expiration, reaction to palpation of the larynx, trachea, intercostal spaces, the abdominal wall, percussion and auscultation of the chest were determined in calves. The markers of intestinal inflammation are soluble protein, erythrocytes (hemoglobin), leukocytes (leukocyte elastase), pH. They were identified in feces by dry-chemistry method during the same period and also selectively at the age of 1-1.5 months. According to clinical and hematological indices the animals were retrospectively divided into 2 groups: group A with leukocyte concentration of (11.0-18.3)½10 9 /l and segmentonuclear neutrophils (SN) more than 4½10 9 /L at birth; group B with leukocyte concentration of 6.5-11.3½10 9 /l and SN lesser than 3.9½10 9 /l at birth. Granulocyte blood concentration dynamics in calves of these groups significantly differed both among themselves and from physiological dynamics (adaptive norm) during the first 15 days of their life. This was determined by various phases of adaptation syndrome (mobilization, resistance, exhaustion) and various possibilities of calves' granulocytic system reaction to irritants impact according to J. Wilder's law of initial values (1957). The increased blood level of SN and rod neutrophils (RN) in animals of group A at birth indicates existing activation of bone marrow and may not significantly increase in response to a rather intensive stimulus. Initial level of SN and RN in calves of group B was close to the physiological one, it significantly increased on the day 2 and decreased by the days 5-7 of life. Cationic protein concentration and BSLA in all the calves during the research period were lower than the indices typical of the animals of this age. Diarrhea developed in all the calves on the day 2 of life. Its duration in animals of groups A and B was 8.6±1.1 and 4.2±0.6 days, respectively. When diarrhea symptoms disappeared, inte...