Аuthors: G. A. LARIONOV, doctor of biological science, associate professor, head of department,
L. M. VYAZOVA, post-graduate,
O. N. DMITRIEVA, post-graduate,
Chuvash State Agricultural Academy (29 K. Marx Str., 428003, Cheboksary)
Abstract: Mastitis cause serious economic damage to farms associated with the forced culling of animals, reducing the grade and the purchase price of milk. Therefore, you should make every effort to prevent the disease of cows with mastitis. Produc- tion of quality milk includes activities preventable cause of possible deviations from the norm and defining ways to overcome them, diagnosis and prevention. Warning of serious economic losses provides early detection of the disease and the treatment of animals. Damage to livestock mastitis is equivalent to the loss of all non-communicable diseases. According to many authors, the disease of cows with mastitis covers from 21 to 70 % of the herd, and 8–16 % of the cows sick 2 times or more during lactation. Depending on what kind of pathogen is present in the herd, subclinical mastitis occurs in 2–20 times more frequently than clinical. The fight against mastitis in cows consists of prompt diagnosis, effective treatment and prevention. Convenient to use and are sufficiently accurate rapid analyzers. Our work presents the results of studies on the propagation of subclinical mastitis cows during lactation. Research on mastitis was carried out on the dairy farm with 180 dairy cows’ livestock. Determine the frequency of lesions udder quarters with subclinical mastitis during lactation. Explore all quarters of the udder of cows experimental and control groups. To determine the number of somatic cells used in the udder secretion California mastitis test and kenotest. Milk-positive sample was tested settling. According to the research conducted treated cows.
Keywords: cow, lactation period, udder, subclinical mastitis, somatic cells, milk, California mastitis test, kenotest, quality, safety.
