Special support for male silkworm is a major change in the traditional sericulture production. Compared with female silkworms, male silkworms have the advantages of good nutrition, fresh mulberry and mulberry leaves, and can generally save about 10% of the cost of silkworm rearing, and the silk yield of male silkworms is higher than that of silkworms. Female silkworms are about 20% higher. Male silk fineness, small deviation, conducive to high-grade raw silk, meet the requirements of silk products to high-grade hair drawer. First, the male silkworm hybrid new varieties - Xiahua X Ping 8 (a) traits This species is a spring and autumn male silkworm cultivar developed by the Zhejiang Academy of Agricultural Sciences Sericulture Research Institute, the species is strong resistance, good nutrition. All ages sleep together. Small silkworms require relatively high temperature and humidity and can be raised at high temperatures. Bombyx mori has a large body shape and a small amount of mulberry leaves. After about 24 days of age, the silkworm is full. Ellipse-shaped ellipse, large and even, white color, high rate of enamel layer and threading rate. (II) Breeding Techniques Tips Ant sensitization can be earlier than ordinary species, and it is easy to control people. It is necessary to timely and evenly expand the seat and prevent food from sang bu wu. Large silkworm must have good mulberry satiation and use mulberry fresh and ripe; During the period of breeding, the temperature is appropriately high. The large silkworm period should pay attention to ventilation and ventilation, and the temperature in the larvae should be kept at 25 to 25.5°C to enhance the ventilation and ventilation in the pupa. two. Feeding male silkworm silkworms (a) Temperature Male silkworm silkworms require high temperature for rearing. Considering male botany's physiology, it is necessary to meet the male burial temperature of the male silkworm and the uniformity of the development of the male silkworm population. The male larval silkworm hybrid should adopt a slightly higher temperature than that of the normal cultivar and be controlled. The ant and foraging time make it reach the day of the day of sleep. The male and female silkworms were reared and the ants were raised at a high temperature of 29.5°C within 24 hours. 29 °C for 1 instar, so you can grasp the 2-3 years of sleep, if the low temperature, 2-3 years of age are prone to sleep, which causes uneven development, large group opening, there are three generations to meet, to increase treatment Difficulty, not only increase the workload of the mouth, but also increase the strength of n loss of silkworm, damaged ant body. The 2nd instar breeding temperature was 28-28.5°C, the 3rd instar 25.5-26C, and the temperature of the naped towel was decreased by 1-2°C. However, male silkworm breeding at the silkworm stage cannot use excessively high temperatures (above 29.5° C.), because excessively high temperature forces on the young and tender mulberry leaves are unfavorable to the growth and development of male silkworms, and such situations should be avoided. (II) Humidity The male and female silkworms have strong resistance to high humidity. In order to maintain the quality of fresh leaves, male silkworms eat well and develop neatly. The difference in dry moisture between 1 and 2 years should be maintained at 0.5°C and 3° at 2°C. Pit room, pit bed breeding, when the standard humidity can not reach, silkworm seats can be placed in dry paper, nylon film, cover dry paper or nylon film. The second answer is to keep feeding at a relatively long interval. Before releasing Mulberry, one should open the anti-dry paper or nylon film. Each time Mulberry was sprinkled with espresso and lime. When the silkworm body is disinfected at each age, it is necessary to sprinkle a disease-preventing No. 1 after removing the sand and before giving the mulberry. In this way, the effect is long, but it cannot be used together with lime. (3) The quality of leaf quality has a great influence on the development and robustness of silkworms. Therefore, it is necessary to strictly select suitable mature leaves. Generally based on the leaf position and leaf color, the stipules on the mulberry branches, the discoloration of the skin, and the growth of the largest leaves can also be used as the basis for picking. The ants used the second leaf on the same day. The leaves were green in yellow, and the leaves were wrinkled. On the second day (1st instar), the 3rd to 4th leaves were used. The leaves were green with yellow leaves and the leaves were flat (the tip of the stipule was brown, and the leaves were white at the junction with the yellow leaves). The moisture content was about 78%. . In the second instar, the fourth leaf was used, and the green mature leaf (brown stipules and leaves at the yellow spots) had a moisture content of about 76%. 3rd instar leaves or 5th leaf. Areas with high fluorine content use three eyes. In principle, young mature leaves are suitable for use at the age of 1 and mature at the 2nd age. To prevent tender silkworm leaves too soft, resulting in weak silkworm, disease resistance is poor, and easy to produce three sleep silkworm. During one age period, two (head-feeding, hypnotic) subjects must be properly tender and the middle (harvest) mature. In addition, small silkworm leaves require that the mulberry varieties be consistent as far as possible, uniform and tender, which is conducive to the development of silkworms. (D) sleep from the treatment of sleep to deal with the requirements of "to eat before sleep, sleep in good governance, timely feeding." 1. Treatment before sleep. Master satiety to sleep, timely sleep network, strict mention of youth in batches. After the silkworm sleeps, it stops eating mulberry and its nutrition comes from nutrients accumulated in the body. Therefore, it is necessary to eat enough to sleep and fully consume it for sleep. After adding the sleeping net, give Mulberry a short time interval to prevent hunger from affecting the physique. In strict accordance with the reference table to determine the foraging time. Due to differences in the management of each sericulture household, leaves. Different quality, different conditions for the Sang, the temperature is also different, have to look at silkworm plus sleep network. Generally 1 to 2 years old, 3 years later. If you find that the network is late, you should pay attention to picking up if you pick up your sleeping head: If the silkworms are relatively thin, you may not need to pick them up. If you leave the old ones in the silkworm wipes, if you remove all the remaining mulberry, you will have an adverse effect on the growth of the silkworms. It is better to control daytime sleep and keep young. In the event of a sleepless night or a slight poisoning of silkworms, when sleep is not uniform, they must be promoted in batches. The time must be controlled within the first 8-10 hours of sleep, and it should be done with scorching and lime. The proposed blue head should be placed near the heat source to continue to give mulberry, so that the head can eat and sleep. For individual sleepy silkworms and weak silkworms, they should be eliminated. 2. Sleep protection. After silkworm sleep, the appearance does not seem to move, and its in vivo changes are very complicated. The old skin was not exfoliated and the new skin was formed internally. The newly formed skin does not have a firm outer skin. If the operation is extensive or the silkworm is weak, it is easy to rupture and form non-silk skin. At the same time, some organs in the silkworm have been renewed, and the silkworm has poor resistance to the external environment during sleep. Therefore, it is required that the protection temperature in sleep be lower by 1 to 2°C than the breeding temperature, and the dry humidity difference should be 2 to 3°C. To prevent vibration and strong wind. 3. Feeding at the right time. Foraging should not be too early or too late. With premature skin and mouth tenderness, it is easy to damage the upper part of the mulberry; too late, the nutrient consumption is large, causing silkworm hunger. . Like no sleep, from the silkworm head was light brown. When you have a feeding performance, you can pick it up at a proper time, and you need to know how to control your daily sleep.
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