Selenium Supplementation of Naturally High Selenium Diets for Swine

Effects of different selenium sources and levels on serum biochemical parameters and tissue selenium retention in rats

“…Research has shown that the organic and inorganic forms of Se vary in tissue retention and that organic Se is deposited in greater concentrations in many tissues compared with inorganic Se (Ku et al, 1973). Thus, the research and application of high efficient organic source of Se has become one of the focal points of animal nutrition home and abroad (Yang et al, 2000).…”

Effects of Selenium Supplementation of Naturally High Selenium Swine Rations on Tissue Levels of the Element

“…Anim. Scl, 53: 561-567 (Sept. 1973) Canada (Arthur 1971: Jenkins andHidiroglou 1972) crops are generally low in selenium and the use of low-vitamin E feed ingredients in swine rations, such as soybean meal and high-moisture corn, appears to contribute to onset of the deficiency conditions (Kornegay l97l; Sharp et al 1972c)" In Michigan, an increased incidence of death losses in swine herds due to selenium de-ficiency has been reported (Michel et al 1969) and Groce et al (1971) Ku et al (1972a) for pigs fed a die't containing 0.448 ppm selenium and for a South Dakota study (Ku et al 1972b) (Jenkins and Hidiroglol 1972). Additionally, a withdrawal period of any consequential length is not feasible with the short growing-finishing periods encountered today.…”

Selenium Concentration and Deposition

“…The selenium concentration in tissues from pigs fed various amounts of selenium in the diet has been reported by several investigators (Lindberg & Lannek, 1965;Ewan, 1971; Groce et al, 197l;.Ullrey, 19710; Ku et al, 19726). In these experiments 'no indication of selenium accumulation in the pig or in pig tissues was found.…”