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selenium    音标拼音: [səl'iniəm]
n. 非金属元素,符号Se,原子序34

非金属元素,符号Se,原子序34

selenium
硒

selenium
n 1: a toxic nonmetallic element related to sulfur and
tellurium; occurs in several allotropic forms; a stable
grey metallike allotrope conducts electricity better in the
light than in the dark and is used in photocells; occurs in
sulfide ores (as pyrite) [synonym: {selenium}, {Se}, {atomic
number 34}]

Selenium \Se*le"ni*um\, n. [NL., from Gr. selh`nh the moon. So
called because of its chemical analogy to tellurium (from L.
tellus the earth), being, as it were, a companion to it.]
(Chem.)
A nonmetallic element of the sulphur group of atomic number
34, analogous to sulphur in its compounds. It is found in
small quantities with sulphur and some sulphur ores, and
obtained in the free state as a dark reddish powder or
crystalline mass, or as a dark metallic-looking substance. It
exhibits under the action of light a remarkable variation in
electric conductivity, and is used in certain electric
apparatus. Symbol Se. Atomic weight 78.96.
[1913 Webster]


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  • Selenium map with great detail - Homesteading Forum
    Selenium is a trace mineral present in the soil in varying amounts around the world In the United States, soil is selenium-deficient in parts of the Pacific Northwest, from the Great Lakes region to the New England states, and along the Eastern Seaboard into Florida
  • Difference between Bo-Se and Vitamin E Selenium Gel
    "Bo-Se is recommended for the prevention and treatment of white muscle disease (Selenium-Tocopherol Deficiency) syndrome in calves, lambs, and ewes, and as an aid in the prevention and treatment of Selenium-Tocopherol Deficiency in sows and weanling pigs Bo-Se contains selenium and vitamin E
  • Anyone ever done blood tests for selenium? - Homesteading Forum
    We have all the signs and symptoms of low selenium levels Our goats are from a nearby herd who doesn't do Bo-se shots We adopted a practically identical management style to that herd but we are having problems whereas they aren't In an effort to be scientific about things, we had blood
  • Baby goats and Bo-Se? | Homesteading Forum
    Flaky skin, excessive hair loss and or shedding, mild stiffness of joints, and overall weakness are symptoms of selenium deficiency SEVERE selenium deficiency is often mistaken for pneumonia For your kids, start giving 2 ccs of the goat version of Vitamin E selenium gel every other week, and once they have reached 6 months old, a Bo-Se shot
  • Has anyone taken selenium and felt crazy or too much detox???? - The . . .
    Re: Has anyone taken selenium and felt crazy or too much detox???? - 08 19 08 09:15 PM In my country, our soil is very low is essential elements like selenium and iodine etc So the food produced from the soil is also consequently low in these and we have one of the highest cancer rates, suicide rates in the world for such a small country
  • BoSe - Homesteading Forum
    The selenium really helps take care of retained placenta's and other problems If I notice an animal is down on its pasterns or maybe dragging a foot, I give selenium immediately
  • Sheep, Kelp, Selenium white muscle disease - Homesteading Forum
    Should I assume the selenium levels in kelp helped avert white muscle disease? I don't know if our part of Missouri is selenium deficient or not, but our first ewe gave birth to dead preemie twins before I gave the kelp free choice, and the second ewe gave birth to a full term healthy ram lamb after eating kelp for a couple of weeks
  • Pig minerals? - Homesteading Forum
    I know our soil has the minerals because 1) I had it tested and 2) our pigs do great on our soil and the forage grown on it but in the winter when we get winter hay from another farm that is selenium deficient then they must get supplemental minerals, specifically for the selenium Testing and sad experience proved this what was the sad
  • Loose Minerals and Pregnant Cow - Homesteading Forum
    In many areas of the country (I have no idea where you are) selenium is deficient Calving troubles increase and the survivability of the calf is lowered when the cow doesn't have enough Selenium It needs Vit E to be properly absorbed The better mineral blocks have Selenium, the cheap ones don't Make sure your loose mineral has selenium If the block you have been using doesn't have it and
  • Bo-se - Homesteading Forum
    Bo-Se is a vitamin mineral supplement Selenium w Vitamin E The Vitamin E makes the selenium more bioavailable than straight selenium (think, synergistic) and it also buffers the selenium, so you really can't hurt the goat if they get too much, the way you can kill a goat with straight selenium It is a vet prescription item And, the expiration date is more of a "suggestion" and CYA for the





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