Effect of selenium on its content in milk and performance of dairy cows in ecological farming


  • Pavel Horký Mendel University in Brno, Faculty of Agronomy, Department of Animal Nutrition and Forage Production, Zemedelska 1, 613 00 Brno




selenium, milk, cow, ecological farming


Currently, the ecological farming is increasingly spread in the European Union. The aim of this relatively young farming method is a friendly approach to agricultural production with an emphasis to deliver healthy raw materials and food to final consumer. Selenium is included in an essential trace micronutrients which are necessary for the proper process of physiological reactions. It is a part of glutathione peroxidase, which is a powerful antioxidant. At present,  selenium-deficiency can occur in feed and food in central Europe. Selenium deficiency is one cause of the higher occurrence of cardiovascular diseases. The aim of the experiment was to study whether the addition of selenium to the diet of dairy cows in ecological farming can increase its concentration in milk and affect quantitative (milk yield) and quality (content of protein, fat, lactose, somatic cells and urea) milk indicators. The experiment included twenty cows of Holstein breed. The first experimental group of cows (n = 10) was fed with selenium in an amount of 0.3 mg.kg-1 (as selenomethionine) in the feed dose. The control group (n = 10) was not fed with the increased selenium in the feed dose. The basic feed dose contained 0.17 mg of Se/kg in the diet. For dairy cows, daily intake was of 20.5 kg of dry matter feed. The duration of the experiment was set at 45 days. The selenium concentration in milk was measured from 0.13 to 0.15 µg.mL-1 in the experimental group of cows during the evaluation. The control group of cows without the addition of selenium to the diet showed a selenium concentration below the detection limit. During the experiment, milk yield, lactose, fat and protein were not affected. A significant decrease (p <0.05) of somatic cells by 58% occurred in milk in the experimental group. The amount of urea was significantly lower in both groups in the experimental (by 52%; p <0.05) and control (50%; p <0.05). These results show that the addition of selenium may increase the selenium concentration in milk (the production of functional food). The addition of selenium reduces the amount of somatic cells, which are the indicators of inflammatory diseases of the mammary gland.


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Balicka-Ramisz, A., Jastrzȩbski, G. 2014. Effect of selenium on the development of selected indicators of fertility in dairy cows. Veterinary World, vol. 7, p. 863-867. https://doi.org/10.14202/vetworld.2014.863-867 DOI: https://doi.org/10.14202/vetworld.2014.863-867

Gambelli, D., Solfanelli, F., Zanoli, R. 2014. Feasibility of risk-based inspections in organic farming: Results from a probabilistic model. Agricultural Economics, vol. 45, no. 3, p. 267-277. https://doi.org/10.1111/agec.12063 DOI: https://doi.org/10.1111/agec.12063

Gong, J., Ni, L., Wang, D., Shi, B., Yan, S. 2014. Effect of dietary organic selenium on milk selenium concentration and antioxidant and immune status in midlactation dairy cows. Livestock Science, vol. 170, p. 84-90. https://doi.org/10.1016/j.livsci.2014.10.003 DOI: https://doi.org/10.1016/j.livsci.2014.10.003

Hadas, Z., Cechova, M., Nevrkla, P. 2015. Analysis of possible influence of conjugated linoleic acid on growth performance and losses of piglets. Reproduction in Domestic Animals, vol. 50, p. 17-22. https://doi.org/10.1111/rda.12443 DOI: https://doi.org/10.1111/rda.12443

Hall, J. A., Bobe, G., Vorachek, W. R., Kasper, K., Traber, M. G., Mosher, W. D., Pirelli, G. J., Gamroth, M. 2014. Effect of supranutritional organic selenium supplementation on postpartum blood micronutrients, antioxidants, metabolites, and inflammation biomarkers in selenium-replete dairy cows. Biological Trace Element Research. https://doi.org/10.1007/s12011-014-0107-4 DOI: https://doi.org/10.1007/s12011-014-0107-4

Horky, P. 2014. Effect of protein concentrate supplement on the qualitative and quantitative parameters of milk from dairy cows in organic farming. Annals of Animal Science, vol. 14, p. 341-352. https://doi.org/10.2478/aoas-2014-0008 DOI: https://doi.org/10.2478/aoas-2014-0008

Horký, P. 2014. Influence of increased dietary selenium on glutathione peroxidase activity and glutathione concentration in erythrocytes of lactating sows. Annals of Animal Science, vol. 14, p. 869-882. https://doi.org/10.2478/aoas-2014-0056 DOI: https://doi.org/10.2478/aoas-2014-0056

Horkỳ, P., Cerkal, R.. 2014. Effect of fungicidal treatment on digestibility of mycotoxins in vitro. Potravinarstvo, vol. 8, p. 328-332. https://doi.org/10.5219/409 DOI: https://doi.org/10.5219/409

Horky, P., Jancikova, P., Sochor, J., Hynek, D., Chavis, G. J., Ruttkay-Nedecky, B., Cernei, N., Zitka, O., Zeman, L., Adam, V., Kizek, R. 2012a. Effect of organic and inorganic form of selenium on antioxidant status of breeding boars ejaculate revealed by electrochemistry. International Journal of Electrochemical Science, vol. 7, p. 9643-9657. ISSN: 1452-3981. [cit. 2015-03-09] Available at: http://www.electrochemsci.org/papers/vol7/71009643.pdf

Horky, P., Jancikova, P., Zeman., L. 2012b. The effect of a supplement of chromium (picolinate) on the level of blood glucose, insulin activity and changes in laboratory evaluation of the ejaculate of breeding boars. Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis, vol. 60, p. 49-56. https://doi.org/10.11118/actaun201260010049 DOI: https://doi.org/10.11118/actaun201260010049

Horky, P., Ruttkay-Nedecky, B., Kremplova, M., Krystofova, O., Kensova, R., Hynek, D., Babula, P., Zitka, O., Zeman, L., Adam, V., Kizek, R. 2013. Effect of different doses of organically bound selenium on antioxidant status and levels of metal ions in postpartum sows. International Journal of Electrochemical Science, vol. 8, p. 6162-6179. ISSN: 1452-3981. [cit. 2015-03-09] Available at: http://www.electrochemsci.org/papers/vol8/80506162.pdf

Kafilzadeh, F., Kheirmanesh, H., Karami Shabankareh, H., Targhibi, M. R., Maleki, E., Ebrahimi, M., Yong Meng, G. 2014. Comparing the effect of oral supplementation of vitamin e, injective vitamin e and selenium or both during late pregnancy on production and reproductive performance and immune function of dairy cows and calves. Scientific World Journal, vol. 2014. https://doi.org/10.1155/2014/165841 DOI: https://doi.org/10.1155/2014/165841

Mehdi, Y., Hornick, J. L., Istasse, L., Dufrasne, I. 2013. Selenium in the environment, metabolism and involvement in body functions. Molecules, vol. 18, p. 3292-3311. https://doi.org/10.3390/molecules18033292 DOI: https://doi.org/10.3390/molecules18033292

Meyer, U., Heerdegen, K., Schenkel, H., Dänicke, S., Flachowsky, G. 2014. Influence of various selenium sources on selenium concentration in the milk of dairy cows. Journal fur Verbraucherschutz und Lebensmittelsicherheit, vol. 9, p. 101-109. https://doi.org/10.1007/s00003-014-0870-3 DOI: https://doi.org/10.1007/s00003-014-0870-3

Navia, B., Ortega, R. M., Perea, J. M., Aparicio, A., Lopez-Sobaler, A. M., Rodriguez-Rodriguez, E., 2014. Selenium status in a group of schoolchildren from the region of madrid, spain. Journal of Human Nutrition and Dietetics, vol. 27, p. 239-246. https://doi.org/10.1111/jhn.12126 DOI: https://doi.org/10.1111/jhn.12126

Nevrkla, P., Cechova, M., Hadas, Z. 2014. Use of repopulation for optimizing sow reproductive performance and piglet loss. Acta Veterinaria Brno, vol. 83, p. 321-325. https://doi.org/10.2754/avb201483040321 DOI: https://doi.org/10.2754/avb201483040321

Oltramari, C. E., Pinheiro, M. G., De Miranda, M. S., Arcaro, J. R. P., Castelani, L., Toledo, L. M., Ambrósio, L. A., Leme, P. R., Manella, M. Q., Arcaro Jr., I. 2014. Selenium sources in the diet of dairy cows and their effects on milk production and quality, on udder health and on physiological indicators of heat stress. Italian Journal of Animal Science, vol. 13, p. 48-52. https://doi.org/10.4081/ijas.2014.2921 DOI: https://doi.org/10.4081/ijas.2014.2921

Pechova, A., Sevcikova, L., Pavlata, L., Dvorak, R. 2012. The effect of various forms of selenium supplied to pregnant goats on selected blood parameters and on the concentration of se in urine and blood of kids at the time of weaning. Veterinarni Medicina, vol. 57, p. 394-403. ISSN: 0375-8427. [cit. 2015-03-09] Available at: http://vri.cz/docs/vetmed/57-8-394.pdf DOI: https://doi.org/10.17221/6307-VETMED

Pilarczyk, B., Pilarczyk, R., Tomza-Marciniak, A., Kowieska, A., Wójcik, J., Sablik, P., Tylkowska, A., Hendzel, D. 2011. Selenium concentrations in the serum and milk of cows from organic and conventional farms in west pomerania. Tierarztliche Umschau, vol. 66, p. 248-253.

Van Metre, D. C. Callan, R. J. 2001. Selenium and vitamin e. Veterinary Clinics of North America-Food Animal Practice, vol. 17, p. 373-402. ISSN: 0749-0720. DOI: https://doi.org/10.1016/S0749-0720(15)30034-7

Wichtel, J. J. 1998. A review of selenium deficiency in grazing ruminants part 1: New roles for selenium in ruminant metabolism. New Zealand Veterinary Journal, vol. 46, p. 47-52. https://doi.org/10.1080/00480169.1998.36055 DOI: https://doi.org/10.1080/00480169.1998.36055

Zigo, F., Farkasová, Z., Elecko, J., Lapin, M., Chripková, M., Czerski, A. 2014. Effect of parenteral administration of selenium and vitamin e on health status of mammary gland and on selected antioxidant indexes in blood of dairy cows. Polish journal of veterinary sciences, vol. 17, p. 217-223. DOI: https://doi.org/10.2478/pjvs-2014-0031




How to Cite

Horký, P. . (2015). Effect of selenium on its content in milk and performance of dairy cows in ecological farming. Potravinarstvo Slovak Journal of Food Sciences, 9(1), 324–329. https://doi.org/10.5219/492