<?xml version='1.0' encoding='utf-8'?>
<oai_dc:dc xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:oai_dc="http://www.openarchives.org/OAI/2.0/oai_dc/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/oai_dc/ http://www.openarchives.org/OAI/2.0/oai_dc.xsd">
  <dc:creator>G. H. Heinz</dc:creator>
  <dc:date>1993</dc:date>
  <dc:description>&lt;div class="abstract-group "&gt;&lt;div class="article-section__content en main"&gt;&lt;p&gt;Five female mallards&lt;span&gt;&amp;nbsp;&lt;/span&gt;&lt;i&gt;(Anas platyrhynchos)&lt;/i&gt;&lt;span&gt;&amp;nbsp;&lt;/span&gt;that had just started egg laying were first fed a diet containing 15 ppm selenium in the form of selenomethionine for 20 d and then an untreated diet for 20 d. Selenium levels in eggs peaked (to about 13-20 ppm) in about two weeks on the treated diet and leveled off at a low level (&amp;lt; 5 ppm) after about 10 d back on the untreated diet. Selenium levels in egg whites responded faster than levels in yolks to the females' consumption of treated and untreated diets.&lt;/p&gt;&lt;/div&gt;&lt;/div&gt;&lt;div class="accordion article-accordion"&gt;&lt;div class="accordion__control" aria-expanded="false" data-references="/action/ajaxShowEnhancedAbstract?widgetId=5cf4c79f-0ae9-4dc5-96ce-77f62de7ada9&amp;amp;ajax=true&amp;amp;doi=10.1002%2Fetc.5620120419&amp;amp;pbContext=%3Bissue%3Aissue%3Adoi%5C%3A10.1002%2Fetc.v12%253A4%3Bpage%3Astring%3AArticle%2FChapter+View%3Bctype%3Astring%3AJournal+Content%3BsubPage%3Astring%3AAbstract%3Bjournal%3Ajournal%3A15528618%3BrequestedJournal%3Ajournal%3A15528618%3Bwebsite%3Awebsite%3Asetac%3Bwgroup%3Astring%3APublication+Websites%3BpageGroup%3Astring%3APublication+Pages%3Barticle%3Aarticle%3Adoi%5C%3A10.1002%2Fetc.5620120419&amp;amp;accordionHeadingWrapper=h2&amp;amp;onlyLog=true"&gt;&lt;span id="references-section-1" class="section__title"&gt;References&lt;/span&gt;&lt;/div&gt;&lt;/div&gt;</dc:description>
  <dc:format>application/pdf</dc:format>
  <dc:identifier>10.1002/etc.5620120419</dc:identifier>
  <dc:language>en</dc:language>
  <dc:publisher>Society of Environmental Toxicology and Chemistry</dc:publisher>
  <dc:title>Selenium accumulation and loss in mallard eggs</dc:title>
  <dc:type>article</dc:type>
</oai_dc:dc>