Goat milk compliance received from animal seropositive for arthritis-encephalitis according to regulatory documentation

УДК 637.07
DOI 10.33861/2071-8020-2025-5-49-52

Original Empirical Research

Koptev V. Yu., Nitsievskaya K. N., Stankevich S. V., Balybina N. Yu.

Abstract. The article contains the results of a study of goat milk from goats seropositive for arthritis-encephalitis, for compliance with the requirements of technical documentation regulating the possibility of further use for food purposes. The object of the study was samples of unpasteurized goat milk from animals contained in the farms of the Novosibirsk region. Samples of goat milk obtained from animals seropositive according to were checked according to the requirements of regulatory documentation GOST 32940-2014 ‘Raw goat milk. Technical Specifications’ and ‘Technical Regulations of the Customs Union ‘On the Safety of Milk and Dairy Products’. Quantitative data were analyzed according to the following indicators: mass fraction of protein, fat, solids, defatted milk solids, as well as additional indicators – electrical conductivity’, ‘titratable and active acidity’, ‘thermal stability’, ‘viscosity’ of milk. The mass fraction of fat in the presented samples ranged from 3.39% to 5.47%. The mass fraction of protein in the samples varied from 3.29% to 3.41%. The mass fraction of dry substances is from 12.53% to 15.86%. For milk samples, the threshold of thermal stability was up to 60% alcohol concentration. The mass fraction of mineral salts is from 0.79% to 0.85%. Milk conductivity is from 5.75 to 6.11 mS/cm. The number of somatic cells and the level of microbial contamination of the studied samples of milk from goats that are asymptomatic carriers of the AEC virus met the regulatory indicators specified in TR CU 033/2013. Bacteria of the E. coli group, as well as representatives of the genus Salmonella, were not found in the samples. Despite the compliance of goat milk from animals seropositive according to AEC with the requirements of regulatory documentation, according to paragraph 10 of the TR CU 033/2013, mandatory boiling of raw milk is necessary before eating dairy products for food purposes to reduce microbiall contamination.

Keywords: goat, milk, biochemistry, goat arthritis-encephalitis, quality analysis

Author affiliation:

Koptev Vyacheslav Yu., Ph.D. in Veterinary Medicine, Leading Scientific Researcher of the Siberian Federal Research Center of Agrobiotechnologies of the Russian Academy of Sciences; phone: 8-903-9012533; e-mail: kastrolog@mail.ru.

Stankevich Svetlana V., Ph.D. in Agriculture, Senior Scientific Researcher of the Siberian Federal Research Center of Agrobiotechnologies of the Russian Academy of Sciences; phone: 8-923-1348573; e-mail: stankevichsv@sfsca.ru.

Balybina Natalya Yu., Scientific Researcher of the Siberian Federal Research Center of Agrobiotechnologies of the Russian Academy of Sciences; phone: 8-903-9012533; e-mail: kastrolog@mail.ru.

Responsible for correspondence with the editorial board: Nitsievskaya Kseniya N., Ph. D. in Technics, Leading Scientific Researcher of the Siberian Federal Research Center of Agrobiotechnologies of the Russian Academy of Sciences; phone: 8-913-2063234; e-mail: nitsievskayakn@sfsca.ru.

Authors’ Contribution: the manuscript was written with the input of all authors. All authors approved the final version of the manuscript.

Conflict of Interest Statement: the authors declare no conflict of interest.