The influence of nutritional factors on metabolism of growing fattening pigs in conditions of technological stress

The article presents the results of physiological assessment of the growing fattened young pigs in terms of modeling technological stress. It was found that the use of adaptogens (primarily dihydroquercetin) helps to reduce the negative effects of stress factors on the animal body, including improved digestibility of feed nutrients, metabolism in experimental animals. The experiments were performed at the physiological yard of the Federal Science Center for Animal Husbandry named after Academy Member L.K. Ernst on 36 heads of crossbred pigs (F-2: (BWxL)xD). Groups of animals were formed on the principle of pairs-analogues in the period after reaching a live weight of an average of 35 kg (n = 9) and divided into 4 groups: 1) Base Diet (BD), stress-; 2) BD, stress+; 3) BD, stress+, +organic Se, 20 mg/kg of feed; 4) BD, stress+, +dihydroquercetin, 40 mg/kg of feed. The duration of the experiment was 36 days. The results of studies on the digestibility of nutrients of feed rationation show that the inclusion in the feed for growing young pigs-40 mg dihydroquercetin (adaptogen) per 1 kg of feed contributed to the best use of feed nutrients against the background of simulated technological stress with equality and some increase in individual indicators of digestibility in comparison with control (stress-) - dry matter by 2.9; organic matter by 1.8; crude protein - by 2.6 abs.% (p > 0.05). Compared with the indicators of animals of the 2nd control group, the digestibility of dry and organic matter significantly increased - by 2.2 and 1.8 abs.% (p < 0.05), and with indicators of the 3rd experimental group - dry, organic matter, crude fat and fiber, respectively, 2.4; 2.2; 11.1 and 7.2 abs.% (p < 0.05). The results obtained for the study of blood parameters in animals of experimental groups in comparison with the control, indicate in general the intensive course of anabolic processes in their body, including under the influence of the studied factors, which led to positive changes in some morphological and biochemical parameters of blood in animals (increase in protein index, concentration of magnesium, iron, phospholipids, hemoglobin), from which it can be concluded that the use of a bioflavonoid (dihydroquercetin) improves the adaptation of the body to technological stresses, leveling its negative consequences.

свиньи, стресс, адаптоген, дигидрокверцетин, показатели крови, переваримость, pigs, stress, adaptogen, dihydroquercetin, blood counts, digestibility