Antioxidant and anti-stress effect of ascorbate lithium has swine in biomedical model
Resume. Pigs in many developed countries have long attracted attention as a biological model. In world practice using specially derived for diurnal breeds of pigs and mini-pigs (khorolskii, herfordshire, etc.). Widely used in experiments and native breeds of pigs - in the United States - Yuka-Tang and American-Essex. In Europe, the largest mini-pig farm is located in Germany. where the gottingen breed is bred. Pigs are emotionally unstable animals with low resistance to stress. In this regard, as a biomedical model of research on pigs allows to check the long-term use of drugs and their aftereffect. The aim of the work is to test a non -invasive anti-stress drug lithium ascorbate to reduce the negative impact of spontaneous stress factors arising in pigs. The experiment was conducted on 5 groups of Irish Landrace pigs (4 experimental and 1 control) with 10 heads each in the period from 2 months to 7 months of age. Animals of 1, 2, 3 and 4 experimental groups were daily fed lithium ascorbate in the form of powder at a dose of 10, 5, 2 and 0.5 mg/kg of live weight, respectively, throughout the fattening period. Before placing the animals in experience and 6 months of age, samples were taken of blood. Adrenaline, norepinephrine, cortisol and progesterone, Malon dialdehyde, thiol-disulfide ratio, superoxide dismutase activity were determined in the blood plasma. On the basis of the conducted researches it is possible to make the conclusion that as a result of influence of stressors arising in the course of a standard production cycle of cultivation of pigs there is a strengthening of activity of system of biological active centers of pigs owing to what the level of the General reactivity of an organism raises. Experimental data on the complex of endocrinological and biochemical parameters indicate that lithium ascorbate in fattening pigs has a positive effect on antioxidant status. The revealed effects of lithium ascorbate indicate the prospects for the development of new effective ways to increase stress resistance, nonspecific resistance.