مراحل انتاج الحرير
دودة القز اسم عام يطلق على اليرقة المنتجة للحرير والتي تنتمي لفصائل متعددة من الفراشات. وتكون فراشة دودة القز البالغة عادة صفراء اللون أو مائلة بين الصفرة والبياض وهي ذات جسم سميك به شعر ولها جناح يبلغ طوله حوالي 3.8 سم (حوالي 1.5 بوصة). وتمتلك الفراشة البالغة فمًا بدائيًّا، وهي لا تأكل أثناء فترة بلوغها القصيرة الأمد، وبالنسبة لأنثى الفراشة فهي تموت بعد وضع البيض مباشرة، بينما يعيش الذكر لفترة قصيرة بعد ذلك.ويوجد بفم دود القز زوج من الغدد اللعابية التي يطلق عليها غدد الحرير وتستخدم في إنتاج الشرانق. وتقوم الغدد الحريرية بإفراز سائل صاف لزج يخرج من خلال فتحات تسمى المغازل، وعندما يخرج السائل ويحتك بالهواء فإنه يتصلب، ويتحدد سمك خيط الحرير الذي يتم إنتاجه من خلال قطر المغزل<br />
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<a href="https://om77.net/forums/attachment/90588-210-600x399-jpg/"><a href="https://om77.net/forums/attachment/90590-36-600x399-jpg/">&lt;a href=&quot;https://om77.net/forums/attachment/90591-46-600x399-jpg/&quot;&gt;&amp;lt;a href=&amp;quot;https://om77.net/forums/attachment/90592-56-600x399-jpg/&amp;quot;&amp;gt;&amp;amp;lt;a href=&amp;amp;quot;https://om77.net/forums/attachment/90594-64-600x399-jpg/&amp;amp;quot;&amp;amp;gt;&amp;amp;amp;lt;a href=&amp;amp;amp;quot;https://om77.net/forums/attachment/90595-75-600x399-jpg/&amp;amp;amp;quot;&amp;amp;amp;gt;&amp;amp;amp;amp;lt;a href=&amp;amp;amp;amp;quot;https://om77.net/forums/attachment/90596-85-600x399-jpg/&amp;amp;amp;amp;quot;&amp;amp;amp;amp;gt;85-600x399.jpg&amp;amp;amp;amp;lt;/a&amp;amp;amp;amp;gt;&amp;amp;amp;lt;/a&amp;amp;amp;gt;&amp;amp;lt;/a&amp;amp;gt;&amp;lt;/a&amp;gt;&lt;/a&gt;</a></a> ☆☆☆الحمدلله ☆☆☆
