How silkworms reproduce, and the hatching of silkworms is related to the conditions of that day

Can the silkworm eggs be produced twice The silkworm eggs can be used for the second time, right?

Answers. 1.Silkworm eggs can be produced twice in the year, but to ensure that the climate and environment are suitable, but generally only once.

2.When the silkworm bridge lacks eggs in the hatching, the temperature difference should not be too large, and it should not be placed in a position with direct light, which can be hidden in astigmatism, and the incubation environment should not be too dry.

35 degrees 40 degrees is impossible, silkworms have long since died. It should be 26 degrees 30 degrees, I have raised it, and it is very smart.

Its development temperature is 7-40, the appropriate feeding temperature is 20-30 silkworm eggs are generally kept in the refrigerator, taken out and placed at room temperature, the most suitable temperature for silkworm egg hatching is about room temperature 25, silkworm eggs will gradually turn purple black, about two weeks or so, you can hatch larvae.

It can be bred for 2 generations under the conditions of factory rearing in the south.

Adult (silkworm moth) pupae turn into moths after 13 to 14 days and emerge from cocoons.

The eggs must be induced to hatch.

The so-called greening is the technical operation process of protecting silkworm seeds under suitable temperature and humidity conditions, so that silkworm embryos can develop and hatch silkworms. The greening time usually takes 10-11 days in spring and 8-9 days in summer and autumn.

<>1. Temperature: The suitable temperature for the growth of 1-3 instar silkworms is 26-27, the suitable temperature for the growth of 4-year silkworms is 25-26, and the suitable temperature for the growth of 5-year silkworms is 24-25. 2. Humidity:

The relative suitable humidity of 1-2 instar silkworms was 90%, that of 3-year-old silkworms was 85%, that of 4-year-old silkworms was 70-75%, and that of 5-year-old silkworms was 70%.

1. What conditions are needed for the growth and development of silkworms?

The suitable temperature for the growth of 2nd instar silkworms is 26-27 and the relative humidity is 90%. The suitable temperature for the growth of 3-year-old silkworms was 26-27 and the relative humidity was 85%. The suitable temperature for the growth of 4-instar silkworms is 25-26 and the relative humidity is 70-75%.

The suitable temperature for the growth of 5-instar silkworms is 24-25, the relative humidity is 70%, and when the temperature is higher than 30, it needs to be cooled, and when the temperature is lower than 20, it needs to be warmed.

2. During the silkworm period, if it is in the early stage of sleep, the indoor relative humidity should be kept at about 80%. When there are silkworms, the indoor relative humidity should be kept at about 85%.

3. During the silkworm period, the temperature in sleep is about lower than the temperature in the middle of age, the humidity is controlled at about 75-80% in the early stage of sleep, and the humidity is controlled at about 80-85% in the middle and late stages of sleep.

Second, what is the relationship between the growth and development of silkworms?

The growth and development of silkworms is related to temperature and humidity, in addition to this, ensuring the quality of mulberry leaves is also key.

Young silkworms. 1) Mulberry leaves: generally choose the third mulberry leaf on the mulberry tree from the top bud downward, the leaf color is yellow with green, and the mulberry leaf is cut into small squares with the length of the silkworm body.

2) Mulberry leaf feeding amount: a silkworm seed, the total feeding amount is about 1kg.

Young silkworms. 1) Mulberry leaves: Generally, the fourth mulberry leaf on the mulberry tree is counted from the top bud downward, the leaf color is green and yellow, and the mulberry leaf is cut into small squares that are twice the length of the silkworm body.

2) Mulberry leaf feeding amount: a silkworm seed, the total feeding amount is about 3kg.

Young silkworms. 1) Mulberry leaves: generally choose the 5-6th mulberry leaves from the top bud down to the mulberry tree, the leaf color is tender green, shiny, and the mulberry leaves are cut into triangles and then fed.

2) Mulberry leaf feeding amount: a silkworm seed, the total feeding amount is about 10-12kg.

Young silkworms. 1) Mulberry leaves: Generally, the 7th-15th mulberry leaves are selected from the top bud downward, and the leaves are required to be fresh.

2) Mulberry leaf feeding amount: For silkworms per 10g ant amount, the total feeding amount is about 65kg.

Young silkworms. 1) Mulberry leaves: no young leaves, no old yellow leaves, no insect leaves, no poisonous leaves, and at the same time ensure that they are fresh enough, and the storage time shall not exceed 12 hours.

2) Mulberry leaf feeding amount: The total feeding amount of silkworms per 10g ant amount is about 385kg.

In summer, silkworms are easier to take care of, and in winter, if they are too cold, they have to be placed in a warmer place.