+ Site Statistics
+ Search Articles
+ Subscribe to Site Feeds
Most Shared
PDF Full Text
+ PDF Full Text
Request PDF Full Text
+ Follow Us
Follow on Facebook
Follow on Twitter
Follow on LinkedIn
+ Translate
+ Recently Requested

Dietary selenate versus selenite for cattle, sheep, and horses

Dietary selenate versus selenite for cattle, sheep, and horses

Journal of Animal Science 70(6): 1965-1970

Food and Drug Administration regulations currently permit addition of .3 mg of Se per kilogram of diet for chickens, turkeys, ducks, swine, sheep, and cattle. However, field reports indicate that this level may not be adequate for ruminants in all situations. Because sodium selenite is the most common supplemental form and is known to be readily absorbed to particles or reduced to insoluble elemental Se or selenides in acid, anaerobic environments, studies were conducted with dairy cattle, sheep, and horses fed sodium selenate to determine whether Se from this source was more bioavailable than Se from sodium selenite. A 2-wk period of no Se supplementation was followed by 49 or 56 d of Se supplementation at .3 mg/kg of dietary DM. Serum Se concentrations and glutathione peroxidase (GSHPx) activities measured initially and periodically thereafter revealed no difference between Se forms in sheep and horses and only a small (P less than .05) advantage for selenate in supporting serum Se concentration in dairy cattle. Selenium concentrations in skeletal muscle and liver of sheep were not different between Se forms. Serum Se, but not GSHPx, increased with time, and .3 mg of supplemental Se per kilogram of dietary DM from either sodium selenate or sodium selenite supported normal serum Se concentrations in sheep, dairy cattle, and horses.

(PDF emailed within 1 workday: $29.90)

Accession: 002072103

Download citation: RISBibTeXText

PMID: 1321804

Related references

Effect of cattle manure on selenate and selenite retention in soil. Nutrient cycling in agroecosystems 76(1): 39-48, 2006

Chronic toxicity and retention of dietary selenium fed to rats as d or l selenomethionine selenite or selenate. Nutrition Research 7(6): 601-610, 1987

Transport of selenate and selenite across the brush border membrane of rat and sheep small intestine. Biological trace element research 9(4): 281-290, 1986

Uptake of selenate and selenite by isolated intestinal brush border membrane vesicles from pig, sheep, and rat. Biological Trace Element Research 10(4): 293-306, 1986

Studies on selenate and selenite absorption by sheep ileum using an everted sac method and an isolated, vascularly perfused system. Comparative Biochemistry and Physiology. A, Comparative Physiology 95(2): 297-301, 1990

Selenate enhances STAT3 transcriptional activity in endothelial cells: differential actions of selenate and selenite on LIF cytokine signaling and cell viability. Journal of Inorganic Biochemistry 109: 9-15, 2012

Bioconcentration and biotransformation of selenite versus selenate exposed periphyton and subsequent toxicity to the Mayfly Centroptilum triangulifer. Environmental Science & Technology 47(14): 7965-7973, 2014

The mutagenicity and cytotoxicity of selenite, "activated" selenite and selenate for normal and DNA repair-deficient human fibroblasts. Mutation Research 49(3): 305-312, 1978

Rotational versus continuous grazing of cattle, sheep, and horses. 1958

Selenium concentrations in tissues of sheep given a subcutaneous injection of barium selenate or sodium selenate. Australian Journal of Experimental Agriculture 34(5): 581-588, 1994

Minimum lethal dose of selenium, as sodium selenite, for horses, mules, cattle, and swine. Jour Agric Res 60(3): 163-173, 1940

Effects of excess dietary selenite on lead toxicity in sheep. Biological Trace Element Research 10(1): 65-75, 1986

Sorption of selenite and selenate in the soil. Annales Agriculturae Fenniae 22(1): 29-39, 1983

Self diffusion of selenate and selenite in overburden. Journal of Environmental Quality 18(4): 479-482, 1989

The selenite and selenate classes of minerals. Rocks and Minerals 66(1): 43-44, 1991