Zazharska N. Criteria for safety and quality assessment of goat's milk

The thesis is devoted to the experimental and theoretical substantiation of the criteria for safety and quality assessment of goat's milk and to the development of a production and selling control system of goat milk in accordance with the system of risk management and food safety control HACCP. For the first time on the basis of the obtained data it was established that the somatic cell count in milk of healthy goats exceeds the index given in DSTU 7006: 2009 «Goat's milk. Raw. Specifications: DSTU 7006: 2009», twice or more. For the first time, it was proposed to eliminate the requirements for the density and acidity of goat milk from DSTU, to reduce the requirements for the fat and protein content, and to meet the requirements for the somatic cell count and bacterial contamination in accordance with European standards. It is proved that the quality of goat's milk films stained by the May-Grunwald method for counting of somatic cells corresponds to the recommended method with pyronin Y, and the cost of dyes is lower by 28.4 times. Defined, the aggregate of such indicators as the chloride ion content >300 mg%, the somatic cell count >2 million/ml, chlorine-sugar figure 7 and above, a positive mastidin test and settling test, can serve as a criterion for detecting subclinical mastitis in goats. Somatic cells count did not correlate with bacterial contamination in goat milk. An inverse relationship was found between the protein content in the goats’ milk and the freezing point: with increase in the protein content, the freezing point was reduced. The system of veterinary and sanitary examination in the process of production and selling of goat's milk according to the system of food safety control HACCP has been improved and scientifically substantiated. We have select average sample of yield to study the content of somatic cells in the milk of healthy goats because a clear pattern of distribution of somatic cells in milk portions during milking was not detected. The dependence of the somatic cell count occasionally yield time was not found. The index can change twice and more during the day.