Physico-chemical characteristics of milk in subclinical mastitis cows

It is set that at subclinical mastitis milk does not have visible changes, differs from milk of healthy animals only on chemical composition and physical properties. Because of aleak in a mammary gland inflammatory processes under influence of vital functions of microorganisms, milk of cows changes the physical and chemical indexes. Application of genetic estimation of groups of animals on the somatic cages of milk will improve stability to mastitis, quality of milk, health of animals, will bring down expenses on treatment. The use of modern methods of DNA-technology and genic-molecular diagnostics in the increase of the suckling productivity and quality of milk is perspective direction that will provide a higher plant-breeding effect in final analysis. Numerous researches show that some genes are associated with the productivity of animals, quality of their products, and also with stability to the different diseases. In particular, such genotypes of genes, as lactoferrin and MBL1 related to the suckling productivity and quality of milk of cows, and also with stability to mastitises. Some authors recommend to use the genetic variants of MBL1 and LTF as DNA of marker for prognostication of maintenance of somatic cages in milk and morbidity mastitis.