A b s t r a c tCommercial poultry production is associated with various stresses leading to decrease of productive and reproductive performance of growing chickens, parent birds and layers. In commercial poultry/animal production, there are four major types of stress: technological, environmental, nutritional and internal stresses. A growing body of evidence indicates that most of the stresses in poultry production at the cellular level are associated with oxidative stress due to excess of free radical production or inadequate antioxidant protection. The vitagene concept of fighting stresses emerged as a new direction in a nutritional research and it was successfully transferred from medical sciences to agricultural sciences, including poultry and pig production. In fact, vitagene regulation by nutritional means appeared as a new approach to realise a full potential of the body for adaptation to stress conditions in poultry/animal production. Therefore, the aim of the study was to test if supplementation of the vitagene-regulating antioxidant mixture (Magic Antistress Mix/PerforMax) with drinking water can improve broiler performance in stressful conditions of commercial chicken production. The experiment was conducted at the poultry farm AO «Prodo Tumenskiy Broiler» (Tumen region, Russia) in a special poultry house designed and equipped for conducting experimental trials and measuring growth parameters weekly. Twelve thousand and four hundred newly hatched Arbor Acres chicks were divided into two equal groups with four replicates in each group and placed in poultry house. The results confirmed the idea that using vitagene-regulating mixture with drinking water can improve chicken performance, including improvement in FCR (1.50 vs 1.56 in control) and vaccination efficacy, as shown by increased vaccination index by 40 %).Commercial poultry production is associated with various stresses leading to decrease of productive and reproductive performance of growing chickens, parent birds and layers. Indeed, domestication and genetic selection based on rapid growth rates, improved feed conversion, and heavier body weight (BW) of broilers has made domestic birds, including broilers and turkeys, particularly susceptible to oxidative stress [1]. From a physiological point of view, stress is related to a deviation from optimal internal and external conditions. Under stressful conditions, the hypothalamic-pituitary-adrenal axis, the autonomic nervous system and the immune system are responsible for re-establishing homeostasis. Therefore, a cascade of regulatory mechanisms is involved, resulting in a mobilisation of energy and a shift in metabolism, with detrimental effects on growth

The article covers such an urgent problem as standardization of social services. The authors come to the conclusion that the development of regional standards can significantly improve the lives of citizens in a particular region thanks to an indepth study of the problems of the region, the specifics of the life of the population, and the adoption of specific decisions in the form of regional standards, which outline all the norms and requirements that determine the quality of the necessary social services.

The paper analyzes the errors committed by law enforcement officers in the implementation of various types of special knowledge at all stages of criminal proceedings. Shortcomings under consideration are differentiated into shortcomings committed in the production of investigative actions, during which objects were seized, subsequently presented for an expert examination, when forensic examinations are appointed, in the production of forensic examinations, when examining the expert's opinion by officials of the preliminary investigation bodies and the prosecutor's office. At the same time, such errors are periodically repeated and multiply: forensic examinations, the need for the production of which is caused by the specifics of the crime being investigated, the current investigative situation and, being justified by specially developed recommendations, are not scheduled; the questions posed to the experts do not cover all the circumstances the establishment of which is possible only through the involvement of persons knowledgeable in a particular area of special knowledge; the questions themselves are not always directly related to the expert's specialization and the type of examination; the presence of proper qualifications of a person involved as an expert is not verified, etc.Without setting themselves the task of analyzing all or most of these errors, the authors thoroughly consider the most serious errors using specific examples from judicial investigative practice and they come to the conclusion that the effectiveness and efficiency of using the expert's conclusion in proving is possible only under the context of impeccable observance by officials of preliminary investigation bodies, forensic experts and heads of forensic institutions of the provisions of the Criminal Procedure Law, the Federal Law "On State Forensic Expert Activity", departmental regulations and forensic recommendations.