Bulletin Samara State Agricultural AcademyBulletin Samara State Agricultural Academy1997-32252782-4225Samara State Agrarian University22904Research ArticleCOWS ECEPTIVITY TO MASTITISES AND CONCENTRATION OF MILK BIOACTIVE SUBSTANCES IN DEPENDENCE ON BREEDKuchin’skaBeatadr. of agricultural sciences, prof. of the department «Animal breeding»beata kuczynska@sggw.plZaitsevV Vdr. of biоl. sciences, prof. of the department «Physiology and biochemistry of farm animals»Zai.Vladimir@rambler.ruWarsaw University of natural sciencesFSBEI HVE SSAA150320151606411032020Copyright © 2015, Kuchin’ska B., Zaitsev V.V.2015The purpose of research is improving the efficiency of dairy cattle using cows of different breeds. From cows of three breeds: Holsteinphrise, Monbelyard and Simmental 30 tests of milk were collected and analysed. Experiment was made during the winter period. It was applied silage consatrate type of cows feeding. The hygienic condition of milk was estimated for number of somatic cells by means of the Somacount-150 (Bentley) device. In milk the content of fat, protein, casein, urea and lactose were determined by the automated infrared MilkoScan FT-120 analyzer (Foss Electric). The amount of serumal proteins and concentration of the conjugated linoleic acid in milk were determined by hromatographical method. Thus the best indicators of quality of milk were noted at cows of Holsteinphris breed. Milk from cows of Holsteinphris breed is characterized by lower contents β-lactoglobulin and α-lactoal’bumin and higher concentration of a lactoferrin and lizotsim, than milk of cows of other breeds. Results showed that the greatest the quantity of somatic cells was in cows milk of Holsteinphrise breed. The greatest concentration of casein and the conjugated linoleic acid was observed in cows milk of Monbelyard breed while milk the Simmental of cows was characterized by the highest level of phospholipids. The susceptibility of cows to mastitis depends on cattle breed. High yielding cows of Holsteinphris breed are most subject to mastitis. It is established that cows with a low susceptibility to mastitis and high genetic potential can bring the greatest financial benefits expected from sale of crude milk.mastitissomaticcellmilkserumalproteinмаститсоматическиеклеткамолокосывороточныйпротеин[Borecki, M. Optoelectronic and photonic sensors of mastitis in cow milk / M. Borecki, T. Niemiec, M. L. Korwin-Pawlowski, B. Kuczynska [et al.] // Proc. Of SPIE. - 2013. - Vol. 8902.][VanRaden, P. M. Invited review: Selection on net merit to improve lifetime profit // J. Anim. Sci. - 2004. - Vol. 87. - P. 3125-3131.][Heck, J. M. L., Effects of milk protein variants on the protein composition of bovine milk / J. M. L. Heck, A. Schennink, H. J. F. Valenberg [et al.] // J. Dairy Sci. - 2009. - Vol. 92. - P. 1192-1202.][Kuczyńska, B. Bioactive components and technological parameters of milk produced on organic and conventional farms. - Warsaw, 2011. - P. 10-120.][Kuczyńska, B. Technological usefulness of milk from Brown Swiss and Holstein-Friesian Black and white cows kept In a certified organic farm / B. Kuczyńska, K. Puppel, E. Metera [et al.] / Ann. Warsaw Univ. of Live Sci. - 2011. - Vol. 49. - P. 69-76.][Januś, E. Effect of selected factors on milk energy value of cow’s milk from PHF BW and Montbeliarde breeds / E. Januś, D. Borkowska // Żywn. Nauka. Technolog. Jakość. - 2011. - Vol. 5. - P. 141-149.][Barłowska, J. Nutritional value and technological suitability of milk from various animal species used for dairy production / J. Barłowska, M. Szwajkowska, Z. Litwińczuk, J. Król // Com. Rev. Food Sci. Food Safety. - 2011. - Vol. 10. - P. 291-302.][Król, J. Basic chemical composition and content of selected whey proteins in milk from different cow breeds and in rennet whey / J. Król, A. Brodziak, A. Litwińczuk // Żywność Nauka Technologia Jakość. - 2011. - Vol. 4 (77). - P. 74-83.][Овсянникова, Г. В. Влияние биологических факторов на качество и технологические свойства молока-сырья в черноземье / Г. В. Овсянникова, И. А. Глотова, В. В. Алифанов, Ю. Н. Масьянов // Вестник Воронежского государственного аграрного университета. - 2011. - №4. - С. 89-91.][Попов, Л. К. Устойчивость коров красной тамбовской породы разных генотипов к маститу и ее взаимосвязь с продуктивностью животных / Л. К. Попов, Н. А. Чернышева, В. Л. Субботин, Н. А. Мордовин // Ученые записки учреждения образования «Витебская ордена "Знак почета" государственная академия ветеринарной медицины». - 2011. - Т. 47, № 1. - С. 230-233.]