Morphobiochemical blood parameters of the laying hens using an iodine-containing supplement and probiotic

The purpose of the scientific work was to find ways to increase egg productivity and the biological value of laying hen eggs using industrial technology. At this stage, the main objective of the study was to compare the morphobiochemical parameters of the blood of laying hens of the Haysex Brown cross when using the iodine-containing supplement iodinol and probiotic Symbitox in the established doses. The planned blood tests were carried out at the testing center of the Federal Scientific Center for Biotechnology and Deep-Sea Research (Orenburg, Russia). Morphological evaluations were performed using an automatic hematological analyzer, URIT-2900 Vet Plus (URIT Medical Electronic Group Co., Ltd", China). Biochemical studies carried out on an automatic analyzer (DIRUI Industrial Co, Ltd, China) with commercial kits for veterinary medicine (CJSC DIAKON-DS, Russia). The scientific and economic experiments conducted by the authors have shown the zootechnical and economic feasibility of various doses and options for feeding the iodine-containing supplement iodinol and probiotic Symbitox to the laying hens. Morphological and biochemical blood tests were performed to provide a physiological and biochemical justification for the technological method of increasing the egg productivity of hens and the biological usefulness of the eggs through the use of the studied drugs. It was found that the consumption of iodinol and probiotic included in the compound feed of the laying hens stimulate homopoiesis, which optimizes metabolic processes. The number of red blood cells, the level of hemoglobin and hematite increased in the blood of the hens receiving supplements. The maximum differences with the control of 25.0%, 8.64% and 8.11%, respectively, were noted in the group of the hens who received the drugs together. The number of leukocytes in their blood decreased by 9.59%. The indicators of daily metabolism have also improved naturally. The concentration of albumin exceeded the indicators of control laying hens by 0.53 (2.71%), glucose – by 15.5 (21.3%), total calcium – by 9.8 (11.4%), inorganic phosphorus – by 8.12 (12.8%).