When taken larva placed in nesting place first start in the secretion of some leads ranging from 3-5 cm to prove itself and called this layer silk hardships (which is insoluble) and then begin to sort crust cocoon (5-6 layers) which is about one thread continuously and be donein 2-3 days turn after the larva into the pupal stage within 2-3 days ... and take pupal 12-14 days to turn into a butterfly pierce cocoon out of them, but it is advisable to collect cocoons a week after the beginning of the climb and should not delay for fear out butterflies and thus become pupaeinsoluble and also so as not to fall cocoon weight. noted that the last layer of the cocoon of silk inside called Albelad which is insoluble and can and Aatha after completion of the solution cocoon where there are laminated to the Virgin.
Cocoons excluded after collecting cocoons exclude cocoons defective merchandise, a double and dumb and Alsdoah and spotted with minute endings and also cocoons fragile and distorted and micro and problems as they occur during the solution.
Clean cocoons (remove hardships silk) is removed layer silk hardships before the drying process by using a dedicated device
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