Shaanxi Shiquan: Artificial feed breeding for small silkworms is in full swing

At 7 o’clock on September 5th, it was the time for the second batch of autumn silkworm artificial feed to raise ants in Shiquan County, Shaanxi Province this year. The technical cadres of the sericulture center got busy separately, putting on work clothes and gloves. Using sterile gloves, methodically take out the pre-steamed feed from the fresh-keeping cabinet, spread out the sterilized plastic silkworm foil in sequence, cover it with sterilized plastic film, place the steamed block feed on the sieve, and then Rub the feed evenly into the plastic silkworm foil covered with film by hand, spread the feed evenly, dip the ant collection bag in water and open it, knock the newly hatched ant silkworms evenly onto the feed, and then evenly distribute the ant silkworms in dense areas. Go to a sparse place, and then put the silkworm foil into a temperature and humidity intelligent automatic control room for complete darkness protection. At this point, the work of raising ants with artificial feed is over. This is just one work scene of Shiquan County carrying out ant breeding for silkworm feed. Work scenes like this have been going on in Shiquan County since 2016.

The artificial feed breeding technology for small silkworms is to use mulberry leaves as the main raw materials to prepare soybean meal powder, corn starch, mulberry leaf powder, sorbic acid, multivitamins, inorganic salts, etc., with crude protein ≧20% and crude fiber ≦17 %, full-price feed with crude ash content ≦12%, which can replace mulberry leaves to feed silkworms to ensure normal development of silkworms. Through the breeding of artificial feed (granular and powdery) for young silkworms in recent years, it has been concluded that it has the following advantages: First, it saves time, effort, and labor. The 1-2-year-old silkworms only need to be fed twice and There is no need to remove sand, and the labor required is only about 1/4 of that of mulberry leaf cultivation. Secondly, all operations are carried out indoors and are not affected by weather changes. Thirdly, it can effectively prevent silkworm infection at the young silkworm stage and resist the risk of co-culture poisoning. Fourthly, Save leaves and increase mulberry leaf production. The use of feed to raise small silkworms can save leaves for the young silkworm stage and is conducive to increasing mulberry leaf production. Fifth, it can significantly reduce the number of silkworms lost during the silkworm raising process, effectively preventing and controlling silkworm diseases. Sixth, the safety factor is high. Unlike mulberry leaf breeding, artificial feed breeding will not bring germs into the silkworm room. There is also no possibility of silkworm poisoning due to pest control or industrial pollution in mulberry fields and farmland like mulberry leaf breeding. Seventh, it is conducive to flexible adjustment of the layout of sericulture in summer and autumn, thereby improving the yield and quality of silkworm cocoons.

This year, Shiquan County took the lead in the province to establish the “Shiquan County Artificial Feed Breeding Feed Distribution Center”, which covers everything from site and operation room disinfection to feed proportioning, bagging, cooking, cooling, refrigeration, packing and distribution. The distribution center strictly follows the “Operating Procedures for Breeding Artificial Feed for Small Silkworms” and meticulously implements it to ensure the quality of the artificial feed for small silkworms distributed from the feed distribution center (the feed is thoroughly cooked, free of bacterial contamination, and refrigerated in a 5-degree environment), quantity (each piece The feed is weighed and proportioned according to the needs of the first and second instars), and small silkworms have been raised at four small silkworm artificial feed demonstration sites in Chengguan, Chihe, Zhongchi and other towns since spring, and good results have been achieved.

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