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<title><string language="fre"><![CDATA[Dr Ian Dunn - The genetics and function of the cuticle, the eggs antimicrobial outer barrier.]]></string></title>
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<string language="fre"><![CDATA[Avian eggs have a proteinaceous cuticle
covering the outside of the eggshell forming a barrier to the transmission of
microorganisms. Although the cuticle is similar to the organic matrix, its
secretion is separate from the organic matrix and occurs just prior to
oviposition. Using NGS sequence it was possible to investigate genes that might
be involved in cuticle deposition, which suggested that an endogenous clock may
control events in the uterus, including cuticle deposition. There is
considerable variation within breeds of chicken and indeed between species in
the quantity of cuticle deposition. Around 40% of the variation within chicken
breeds is genetically determined. Environmental stressors explain some of the
variation but the remainder is not known. Within the range of natural variation
there are considerable differences in the antimicrobial protection that the
cuticle affords the egg. The eggs with the best cuticle are not penetrated when
challenged by E.coli and Salmonella. Interestingly, although the cuticle
protein had intrinsic antimicrobial activity, we could not prove that the
glycosylation level was important for this activity. The cuticle is a
fascinating structure with antimicrobial effects but also on the shell, which
has been rarely studied.
 ]]></string></description>
<keyword><string language="fre"><![CDATA[coquille oeuf]]></string></keyword>
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<date><dateTime>2021-03-23</dateTime></date>
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<description>
<string language="fre"><![CDATA[Droits réservés à l'éditeur et aux auteurs. 
@LE STUDIUM 2021]]></string>
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<entry>https://www.canal-u.tv/producteurs/le_studium/le_studium_conferences</entry>
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<string language="fre"><![CDATA[LE STUDIUM Conferences]]></string>
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<entry>https://www.canal-u.tv/producteurs/le_studium/le_studium_conferences/innate_immunity_in_a_biomineralized_context_trade_offs_or_synergies</entry>
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<description>
<string language="fre"><![CDATA[Innate immunity in a biomineralized context: trade-offs or synergies?]]></string>
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<string language="fre"><![CDATA[Universités Numériques Thématiques 2009 http://www.universites-numeriques.fr]]></string>
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<string language="fre">CDD 22e éd.</string>
<string language="eng">DDC 22nd ed.</string>
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<entry>
<string language="fre"><![CDATA[Biochimie]]></string>
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