The effect of vitamin and mineral supplements on infection of pigs with porcine transmissible gastroenteritis

The article describes studies to study the effect of vitamin and mineral supplements (VMS) on the survival of piglets with porcine transmissible gastroenteritis (TGS). The studies were carried out on animals of different age groups on the basis of pig breeding complexes with 2- and 3-phase systems of keeping, in farms disadvantaged by TGS. Studies have shown that in case of TGS, the abolition of VMS in the rearing groups can contribute to both a decrease and an increase in piglet mortality. There is a direct dependence of their death on the number of viruses in the external environment. A significant decrease in the mortality of piglets after stopping the intake of vitamins in comparison with control animals, in which VMS was not canceled, was proved. Shown is the effect of VMS on the survival rate of the livestock, depending on the system of keeping animals. With a 2-phase system of keeping, when the virus is constantly circulating in the room, the abolition of VMS provides a decrease in the mortality of piglets, and with a 3-phase systemof keeping, where the virus is periodically destroyed during the sanitization of premises before the next settlement, the abolition of VMS contributes small increase in piglet death. These data indicate a positive effect of the use of vitamins in the absence of the pathogen, and in the presence of it, the use of vitamins, on the contrary, enhances the development of the disease, which is fully consistent with studies on the reproduction of the virus in cell culture, when the addition of VMS to the growth medium stimulated the reproduction of the virus.