Silkworms eat mulberry leaves and spit out silk, which is used by people to spin and become indispensable silk in people's lives. This is very similar to a cow. They work hard and expect nothing in return. In a word, silkworm is our friend.
Hard-working, nonstop silkworms are always spitting cocoons before they become butterflies, and will not let go of their goals because of the external storm. People admire the spirit of "never dying" of silkworms, so there is also a famous saying that "silkworms in spring will weave to death, and candles will cry their wicks every night".
Feeding and management methods of spring silkworm;
1, seeds are fixed by leaves, and seeds are balanced by leaves. Generally, the amount of leaves used for silkworm eggs is about 700 kg. According to this standard, it is necessary to determine the output of mulberry and the number of silkworm eggs to prevent the waste or loss of leaves. For users with large feeding capacity, it is advisable to divide spring silkworms into two batches. The first batch tries to eat enough, and the yield is high, which can account for 85%-90% of the feeding amount, and the second batch serves as a supplement. The interval between the first batch and the second batch is 7- 10 day.
2, timely green. Silkworm should be germinated in time, and the date of germination depends mainly on mulberry germination, local climate characteristics and historical data. The incubation period of inferior mulberry can be advanced appropriately, and the incubation period of middle-late mature mulberry should be later. Generally, the suitable time to promote green is to open 3 or 4 mulberry leaves, so that silkworms of all ages can eat mature mulberry leaves.
3. Strengthen feeding management and do a good job in rearing young silkworms. First of all, the silkworm room should be cleaned and disinfected 10 days before sericulture, and no phytotoxicity can be left. Silkworms need to sleep for 4 years from hatching to cocoon formation. 1-3 years old is a young silkworm (or young silkworm), and 4 or 5 years old is a big silkworm (or strong silkworm). Silkworm has weak resistance in the young stage and strict requirements on environmental conditions.
In places with high technical requirements and insufficient technical strength or temperature compensation conditions, it is best to raise silkworms. Secondly, it is necessary to carry out timely wake-up and other technical treatments to prevent stiff diseases, reduce autumn silkworms, and strictly control the indoor temperature and humidity, which requires 1 age, 40.5℃, and the difference between dry and wet is 0.5-1; The second age is 40℃, and the difference between dry and wet is 2.5; The natural temperature and humidity of the 4th and 5th instars, but if the 4th instar encounters low temperature below 36℃, it should be heated to above 37℃ as much as possible.
Silkworm room should be ventilated and transparent, increase the frequency of sand removal, cluster in time in the later stage, reduce cocoon formation such as macula, double official, deformity and thin skin, and ensure high yield and high quality.
Hard-working, nonstop silkworms are always spitting cocoons before they become butterflies, and will not let go of their goals because of the external storm. People admire the spirit of "never dying" of silkworms, so there is also a famous saying that "silkworms in spring will weave to death, and candles will cry their wicks every night".