Study of milk from goats with different clinical status for arthritis-encephalitis of goats (AEG)
https://doi.org/10.31677/2311-0651-2025-47-1-23-32
Abstract
Studies of dairy products from goats with different clinical status for arthritis-encephalitis of goats (AEG) were carried out. Samples of unpasteurized goat milk from Nubian breed goats served as the object of the study. The research is aimed at analyzing quantitative data on the indicators “mass fraction of protein, fat, solids, skim milk powder (SMP)”, as well as indicators - “electrical conductivity”, “titratable and active acidity”, “thermal stability”, “viscosity” of milk. Mass fraction of fat in the presented samples ranged from 3.28% to 8.69%. The mass fraction of protein in the samples varied from 2.50% to 4.10%. Data on physical and chemical parameters corresponded to the stated requirements of regulatory documentation, in comparison of goat milk samples were within the error of measurement. Mass fraction of fat in the presented samples ranged from 3.28% to 8.69%. The mass fraction of protein in the samples varied from 2.50% to 4.10%. Data on physical and chemical parameters corresponded to the stated requirements of regulatory documentation, in comparison of goat milk samples were within the error of measurement. Organoleptic and microbiological studies were carried out in comparison of the obtained data with the current regulatory documentation. A decrease in the indicator “viscosity” of milk of goats with AEG (+) status was noted. For milk samples the threshold of thermal stability was at the limit of 40% - 50% alcohol concentration. The indicator Number of mesophilic aerobic and facultative-anaerobic microorganisms for milk from healthy (seronegative) goats is within the norm according to the requirements of the Technical Regulations of the Customs Union TR TS 033/2013, milk from seropositive goats with and without clinical signs did not meet safety standards. Additional studies should be conducted to detect milk from goats with different clinical status for arthritisencephalitis of goats (AEG).
About the Authors
V. Yu. Koptev
Siberian Federal Research Center of Agrobiotechnologies Russian Academy of Sciences
Russian Federation
Russian Federation
PhD in Veterinary Sciences, Head of Laboratory
S. V. Nitsievskaya
Siberian Federal Research Center of Agrobiotechnologies Russian Academy of Sciences
Russian Federation
Russian Federation
PhD in Agricultural Sciences, Senior Researcher
S. V. Stankevich
Siberian Federal Research Center of Agrobiotechnologies Russian Academy of Sciences
Russian Federation
Russian Federation
PhD in Agricultural Sciences, Senior Researcher
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Review
For citations:
Koptev V.Yu., Nitsievskaya S.V., Stankevich S.V. Study of milk from goats with different clinical status for arthritis-encephalitis of goats (AEG). Innovations and Food Safety. 2025;(1):23-32. (In Russ.) https://doi.org/10.31677/2311-0651-2025-47-1-23-32
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