Application of Ecdysterone in Sericulture
The silkworm is a fully metamorphosed insect that goes through four developmental stages in its life: silkworm seed, larva (silkworm), pupa and adult (moth). Through the selection method, selecting and retaining spitting more silk, cocoon large individuals as seed, and the principle of hybridization, the combination of different traits in the same body and breeding into new types.Nowadays, people have mastered the relationship between insect hormones and metamorphosis development, and have been able to artificially regulate the development of silkworms.However, if there is a lack of mulberry leaves, the spread of disease or insufficient labor at that time, to silkworms early pupation, how should it be solved?
If there is a lack of mulberry leaves, the spread of disease or insufficient labor at that time, and silkworms are required to pupate in advance, use ecdysterone to spray mulberry leaves to feed the fourth instar larvae, which can shorten the growth period and spit out cocoons in advance.In general, five-year-old silkworms began to appear ripe eggs, add ecdysterone, can make silkworms on the nest concentration, saving mulberry leaves, is conducive to labor arrangements, improve efficiency, to facilitate the protection of nests, improve cocoon quality, to create favorable conditions for automatic nesting. On the other hand, in solving the problem of silkworm species balance can also play a positive role in the transfer.
The study of ecdysterone only started in the 1940s of this century. 1954-1956, Carlsen and others in Germany isolated a very small amount of natural ecdysterone from silkworm pupae. Its content is small, but the efficacy is amazing. At that time, although only 25 mg of crystals were isolated from 500 kg of tai, only 0.0075 micrograms could make the abdomen of the ligated lipped fly pupate. The application of ecdysterone in silkworm production is a new development in the application of insect hormones.
Ecdysterone's regulation of the silkworm's age is an important symbol of its activity, but the effect is different depending on the time of feeding. Such as the age of five 1-2 days to add can make the age of prolonged, 3-4 days to add is obviously shortened, 5-6 days to add is not much effect on the age of the silkworm, but can promote the nest neat. The production requirement of adding ecdysterone to slightly shorten the age of five, mainly to promote the nesting of the same and centralized. In fact, it is to make the first maturity period slightly earlier, the full maturity period is concentrated, and the course of the nest is shortened accordingly. There are many factors affecting ecdysone, briefly described as follows.
01
Silkworm Species
The effect of ecdysterone on the shortening of the five-year period should be measured according to the characteristics of egg breeds and the ratio of the shortened period to the whole five-year period.
02
Feeding Temperature
When low temperatures are encountered, it is possible to add earlier and increase the dosage, and this should be combined with increased temperatures in order to receive the desired effect.
03
Quantity of Mulberry Leaves
Under the condition of eating mulberry for more than two thirds of the time in the fifth age period, adding ecdysterone can raise the early maturity of silkworms.
04
Effects on Cocoon Silk
The second age of silkworms is more sensitive to ecdysterone. After the fifth age of silkworms at different times to add ecdysterone, the formation of cocoon silk volume also has a great role in promoting.
Where To Buy Ecdysterone?
Kingsci Biotechnology Co., Ltd. is a GMP standard manufacturer of high quality naturalherbal ingredients which serving the fields of food additives, cosmetic, pharmaceutical and so on.
Ecdysterone (Beta-Ecdysone, 20-hydroxy-ecdysterone) 85%, 90%, 95% UV 50%, 60%, 70%, 90%, 95%, 98% HPLC can be provided, please contact us for more details.
Our address
Room 801-802 Building 2 Fuerdun International Fortune Center, No.188 Wenjing Road, Xi'an 710016, China
Phone Number
86-29-86181961
donna@kingsci.com
