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The entry of domestic products into European markets has set Ukrainian entrepreneurs the task - to increase their production, ensure safety, quality and competitiveness. The purpose of the study is to assess the safety and quality of sweet butter obtained from various domestic producers, and to determine its falsification by the generally accepted method and the developed patented express method. The object of the study was the assessment of organoleptic, physicochemical, microbiological parameters and falsification of sweet butter obtained from various milk processing enterprises of Ukraine: Lustdorf LLC and Fooddevelopment LLC, Vinnytsia region; TDV "Yagotinsky butter factory"; PE "SIMOL", Kyiv region; State Enterprise "Starokostiantyniv Dairy Plant", Khmelnytsky region. Analytical, organoleptic (appearance, color, consistency, smell, taste) were used to achieve the research goal; physicochemical (mass fraction of moisture, mass fraction of fat, titrated acidity of plasma oil and acidity of fatty phase of oil, mass fraction of sodium chloride, determination of margarine and vegetable fats), microbiological (KMAFАNM, the presence of Escherichia coli bacteria, pathogenic microorganisms, in particular genus Salmonella, species Listeria monocytogenes; molds) and variation-statistical research methods. Developed patented express method for detecting adulteration of sweet cream oil using resorcinol solution in benzene with a mass fraction of 5.0% and concentrated hydrochloric acid can be used in production laboratories at milk and dairy products, supermarkets, wholesale bases, shops and public laboratories. in laboratories of veterinary and sanitary examination in agro-industrial markets. The oil produced by different manufacturers according to organoleptic parameters: appearance, color, texture, smell and taste met the requirements of DSTU 4399: 2005. According to physical and chemical parameters, the samples of sweet butter also met DSTU 4399: 2005, except for sample № 5 (SE "Starokostiantyniv Dairy Plant" of Khmelnytsky region), which showed an increase of + 0.6% by weight of sodium chloride. Research has established the falsification of sweet cream oil according to the developed patented method, according to which the probability in the indicators was 99.9%, produced: TDV "Yagotinsky butter factory" - up to 1.5% (light purple color) oil and "Farm Peasant", manufacturer LLC Food Development "- from 1.6 to 5.0% (bright purple color). Microbiological parameters of sweet butter: KMAFANM, bacteria of the Escherichia coli group, bacteria of the genus Salmonella, species Listeria monocytogenes, as well as molds met the requirements of DSTU 4399: 2005.

The primary task of the livestock industry is to provide the population with high-quality food products, and the industry with raw materials. For this, it is necessary to ensure a high level of productivity and safety of young pigs. Studies carried out in recent years indicate an increase in the incidence of gastrointestinal diseases among young farm animals, leading to a decrease in the immunobiological reactivity of the piglets' organism and significant damage to farms. When performing the research, we used zootechnical, zoohygienic, biochemical, immunological and variational-statistical research methods. Research work was carried out during 2010-2018 at the Department of Animal Hygiene and Fundamentals of Veterinary Medicine of the Bila Tserkva National Agrarian University. Scientific and economic experiments and production tests were carried out in the farms of Progress LLC (Uzin, Bila Tserkva district) and Denisenko LLC (Skvirsky district, Kyiv region). Experimental studies were carried out in the Problem Laboratory of Immunology, Department of Animal Hygiene and Fundamentals of Veterinary Medicine, interfaculty laboratory of biochemical and histochemical research methods. For the first time, the prebiotic Bio-active was used as a feed additive in the diet of young pigs on growing at industrial keeping, its positive effect on the safety, productivity, physiological and immunological state of their body was proved. For the first time, the optimal dose of the prebiotic Bio-active for growing pigs was established and a method of its use was developed. The optimal dose of the prebiotic Bio-active for growing young pigs is 5 g (5x107 CFU) per 10 kg of body weight when fed with compound feed once a day for 30 days, which contributes to an increase in the average daily weight gain of piglets by 17.2 % (P