02734naa a2200445 a 450000100080000000500110000800800410001910000260006024501330008626000090021952014700022865000110169865000160170965000320172565000240175765000140178165000190179565000130181465000170182765000130184465000190185765000230187665000180189965000190191765000190193665000120195565000260196765000220199365000230201565300170203870000190205570000170207470000170209170000240210870000230213270000190215570000170217470000230219177300740221421524262023-03-16 2023 bl uuuu u00u1 u #d1 aVASCONCELOS, A. M. de aEfect of a 60-day organic selenium-supplemented diet on the decrease of somatic cell counts in goat milk.h[electronic resource] c2023 aAbstract: Selenium is an important element in nutrition, showing great potential in the udder health of dairy goats and in the control of subclinical mastitis. However, there are few studies that evaluated the infuence of selenium supplementation on subclinical mastitis in goats. The aim of this study was to evaluate the incidence of subclinical mastitis in dairy goats supplemented with organic selenium (Se yeast) in a semi-arid region. Sixteen Saanen×Toggenburg crossbred lactating goats were allocated randomly into two treatments: with and without addition of organic selenium (Se) to the concentrate. Milk samples were collected every 20 days from each udder half to determine the somatic cell count (SSC), chloride content, pH, electrical conductivity, microbiological isolation, composition, and selenium contents. The highest serum selenium concentrations in the blood of these goats occurred at 42 days of supplementation (P<0.001). Goats which received organic selenium supplementation had higher serum selenium concentrations (P<0.05). The milk composition variables did not difer (P>0.05) between the tested treatments, teats, and collections. After 60 days of supplementation, a diference was observed (P<0.05) between treatments for SSC, chloride content, and pH. Addition of organic selenium to the diet of dairy goats after 60 days of supplementation was promising in reducing the somatic cell count, consequently improving milk quality. aBrazil aDairy goats aDietary mineral supplements aDietary supplements aGoat milk aMammary glands aMastitis aMilk quality aSelenium aSemiarid zones aSomatic cell count aSomatic cells aTrace elements aCabra Leiteira aCaprino aMicroelemento Mineral aNutrição Animal aSuplemento Mineral aMicromineral1 aMARTINS, T. P.1 aSOUZA, V. de1 aBONFM, J. M.1 aPOMPEU, R. C. F. F.1 aFAÇANHA, D. A. E.1 aPEREIRA, P. L.1 aFERREIRA, J.1 aSILVEIRA, J. M. F. tTropical Animal Health and Productiongv. 55, article 113, Mar. 2023.