6.Vplyv disease mastitis cows on the technological parameters of milk and its quality and safety. I

Udder of the cow. The glandular tissue of the udder of a healthy cow usually contains microorganisms, but Soskov channel and milk tank constantly saprophytic bacteria. Therefore, milk, even got in compliance with all aseptic precautions, usually contains microorganisms. Especially the first streams contaminated milk, the latter portion of milk yield mostly sterile. The number of bacteria appalam making machine in aseptically obtained milk of healthy cows slightly: from 100 to 10000 in 1 ml. This is mainly appalam making machine saprophytes - pathogenic micrococci, Corynebacterium, penetrating from the outside through the nipple. In contrast to saprophytic microflora contamination appalam making machine of milk in the udder pathogenic bacteria occurs appalam making machine primarily appalam making machine through blood. For example, the TB bacillus. Brucella, leptospira, pathogens Ku-fever, appalam making machine getting appalam making machine to the flow of blood in the parenchyma of the udder, appalam making machine multiply, often causing it pathological process, and long out of milk. However, means a number of pathogenic appalam making machine and conditionally pathogenic microorganisms, as well as the saprophytes, penetrates the skin of the udder, contaminated bedding Soskov through a channel in the milk tank and large mammary moves. Among them are mainly mastitis pathogens: pathogenic cocci and much less lrd. nhovni sticks. Integument, especially the skin of the udder, hind limbs, tail, heavily contaminated with animal lying. appalam making machine Cow resting appalam making machine supine. Therefore, no matter how dirty in the farmyard or on vygulnyh platforms, it falls. appalam making machine Meanwhile appalam making machine 1m manure refers to 63-80 billion bacteria in addition to the development of some of the manure is not a favorable environment. It is evident that the abundance of bacteria living in contaminated areas of skin cow manure, and the possibility of contamination of milk during milking. Dried manure particles in the form of small crusts are often left in the udder even after washing and wiping it down before milking. In such a crust saprophytic and pathogenic bacteria remain viable for several days or even weeks. Especially dangerous fecal contamination of the skin of affected animals in which pathogenic bacteria are excreted appalam making machine in feces, such as tuberculosis, salmonellosis.
2. Milking equipment. Bacterial insemination milk depends on the sanitary condition of milking equipment and dairy dishes. This applies to the milking machine, washing and dezynfykatsyya how much more difficult and requires appalam making machine more attention than dairy dishes. Poor washing and milking appalam making machine equipment dezynfykatsyya lead to accumulation, particularly in remote machine components, milk residues skysayut, appalam making machine decomposed form grayish mucous that stupidly smelling plaque containing putrefactive bacteria. In these cases, the number of bacteria on the working appalam making machine surface of milking equipment can reach enormous sizes.
3. Hands milkmaids. Healthy skin hands milkmaids subject to the minimum requirements of hygiene has little bacterial contamination that did not significantly affect the quality of milk. However, if hands are not washed before milking, then they can be a source of contamination of milk.
4. Room. Air barnyard milking room also plays a small role in the contamination of milk. The number of bacteria in the air depends on the pollination., So the barnyard, it varies from a few thousand to several million in 1m . Air milking parlor is usually pretty clean because appalam making machine cleaning such premises wet.
Mastytne milk affects the processes in the primary appalam making machine processing of milk and dairy products quality. Assembled milk containing impurities milk from sick cows mastitis, unnatural processing or drastically reduce the quality of it manufactured dairy products. When mastitis changing physical and biological properties of milk, as well as chemical composition, decreasing the total amount of solids, broken ratio of individual components. The degree of change depends on the weight of the inflammatory process. In udder secretions of sick cows umenshыvaetsya content of milk fat, lactose. Casein, calcium, potassium, magnesium, phosphorus and vitamins. Reduced tytruyema acidity. Increased content of cells, especially white blood cells, soluble protein fractions albumin, chloride. Sodium, enzymes. The concentration of hydrogen ions increases. Reduces the viscosity of milk, its density, surface tension, conductivity increases, changing the way the passage of light (refraction).
6.Vplyv disease mastitis cows on the technological parameters of milk and its quality and safety. In biological terms with mastitis milk become defective. It lacks antibacterial substances it contains appalam making machine many microorganisms, including pathogenic to humans. appalam making machine At the same time, this milk becomes poor substrate for the development of cultures of lactic acid organisms used in the dairy industry. In this connection slows clotting mastytnoho milk under the influence of rennet is widely used in crude production.
Time rennet coagulation of milk from udder quarters infected with subclinical mastitis,