Feeding and management of Tenebrio Molitor in different growth stages

Feeding and management of Tenebrio Molitor

1) all tools should be washed and disinfected with 0.1% potassium permanganate solution before the preparation work begins to release the yellow powder insects. The feeding room sprayed 2% Lysol solution to disinfect the floor, and then used bactericidal disinfectant spray to disinfect the space. A circle of plastic tape is pasted below the upper edge of the feeding plate (wooden plate) to prevent the yellow powder insect from escaping. Completely eliminate the natural enemies of Tenebrio Molitor indoors, such as spiders, ants, geckos, mice and so on. The feeding room should be cleaned and cleaned. 2) the suitable temperature and humidity for the breeding of Tenebrio Molitor is 2530 ℃, and the space humidity is 60%. If the temperature and humidity are higher or lower than the above standard, the growth and development of Tenebrio Molitor will be affected to a certain extent. In the process of feeding, corresponding measures can be taken according to specific conditions to adjust and control the temperature and humidity. 3) Clean and hygienic work after thorough cleaning and disinfection, the feeding room should always be kept clean and sanitary, and the following aspects should be done: ① should keep the feeding room and tray clean and hygienic. The leftover green fodder eaten by ② should be cleaned in time to prevent decay and deterioration. ③ cleans the dried skin and the feces of the larvae in time. The faeces of Tenebrio Molitor are like fine sand. If they accumulate too thick, they will affect their activities and eating. They must be cleaned regularly and cleaned once every 5 to 7 days. The way to clean up is to prepare for the cleaning work the day before, do not put wheat bran, corn husks and so on into the feeding plate, you can put in some green fodder, as far as possible to let the larvae eat up the original feed. When cleaning, pour the larvae, feed and feces into a sieve, sift out the feces, and then pour the larvae into a sterilized plate. 4) the management of winter and summer should adopt the method of heating to increase the temperature of the feeding room to about 25 ℃ in winter. In the high temperature season in summer, it is necessary to ventilate and reduce the density of evacuated larvae so as not to increase the temperature within the population and prevent direct sunlight. If positive measures are not taken every summer. Will cause the death of a large number of yellow powder insects. (5) Management of Tenebrio Molitor at different stages 1) feeding and management of adults. First, adults in different growth periods have different requirements for feed, so they can not be mixed. Second, the adult just Eclosion is very delicate, the resistance is not strong, can not eat too much water content of feed, can be properly fed with wheat bran, corn flour and other refined feed. Third, in order to improve the spawning rate and hatching rate of eggs, adults should be provided with sufficient nutrition and fed with high-quality compound feed. The feed formula is: wheat bran 70%, corn flour 20%, sesame cake 9%, bone meal 1%. And throw a sufficient amount of concentrate. This can delay the aging of adults, prolong the spawning period and improve the spawning rate. Fourth, it is necessary to do a small amount of feeding for many times, feeding 2 or 3 times a day, and the daily feeding amount should be appropriate, based on the principle that there is no surplus food in the next feeding. There can be no lack of food, otherwise it will cause adults to eat eggs, and adults will bite and fight with each other and cause injuries. Because the remaining feed is easy to mildew and deteriorate, which affects spawning, so the feed can not be put too much. Fifth, male adults often die soon after mating, so it is necessary to clean up the dead adults in time to prevent decay and deterioration from causing infectious diseases. Sixth, there is a layer of egg paper under the oviposition sieve, which is usually changed once every 4 days. Spread a layer of 2 cm thick wheat bran evenly on the oviposition paper under the oviposition screen, and the eggs laid will be buried in the wheat bran, otherwise the adults will eat the eggs. Seventh, in order to improve the spawning rate of adults and the hatching rate of eggs, adults are generally replaced once every four months, that is, aging adults are eliminated:

2) after the egg receiving paper is removed, the eggs are placed in the feeding plate together with the wheat bran on the paper. Under suitable conditions, the eggs hatch out larvae. At this time, the management should pay attention to the following two aspects: ① temperature plays an important role in egg hatching, eggs hatch larvae in 5 days at 30 ℃ temperature, and larvae hatch in 15 days at 25 ℃ temperature. Therefore, the eggs should be hatched at a higher temperature to shorten the incubation period. ② incubation also requires moderate indoor relative humidity, eggs can hatch larvae smoothly in a suitable humidity range; in dry environment, hatching is slow, and there is a certain mortality. Do not spray water to humidify the incubator, but increase the humidity in the incubator by increasing the humidity of the environment. The relative humidity of the environment should be increased to about 70%. The way to increase indoor humidity is to sprinkle water on the ground and put some basins on it. 3) the management of larvae in the life cycle of Tenebrio Molitor, the larval stage lasts about 2 months. The management of larvae directly affects the economic benefits. Therefore, the management of larvae should do a good job in the following aspects: after all ① eggs hatch into small larvae, they should be heated and humidified to promote rapid growth and development. The temperature within the larva population can be increased by increasing the feeding density; the method of humidification is to spray and humidify the feeding plate, the number of spraying should reach 7 to 8 times a day, the amount of each spray should be small, and there is no obvious moisture in the plate. You can also increase humidity by mixing feed with a little more water. In order to make the larvae absorb comprehensive nutrition, ② can be fed with formula feed with a water content of about 10%, and some clean green leaves are often fed. In the rainy season, the feed can not be mixed with water, but also reduce the amount of green feed. The amount of ③ feed should be appropriate, based on the principle that there is no shortage of food and there is a small amount of leftover food. 2 Mel 3 times a day. ④ larvae should be reared separately to avoid eating big and small and reduce yield. ⑤ larvae have a strong ability to escape, so they should do a good job of escape prevention and often check that the anti-escape glue is not damaged. 4) Management of pupae the management of pupae should be done in the following aspects: ① pupae are immobile and tender, so they are easily attacked by larvae, so it is necessary to separate larvae from pupae in time after the larvae become pupae. ② pupae are afraid of high temperature. If they exceed 30 ℃, they will die in large numbers. Therefore, in the high temperature season, special attention should be paid to strengthening air circulation and taking positive measures to cool down. ③ density can not be too high, it is best to spread out a layer, otherwise it will cause death. ④ to avoid violent vibration, generally do not transport, otherwise the hatching rate is greatly reduced. ⑤ cleans up dead pupae in time to prevent infection caused by contamination of living pupae after decay of dead pupae. 5) Transport of Tenebrio Molitor is the transport of larvae. Attention should be paid to the following aspects: ① is generally transported in winter, early spring or late autumn when the temperature is low. At this time, because of the low temperature, the metabolic level of the larvae is low, the nutrition consumption is low during transportation, and the survival rate is high after arrival. ② transport, filled with plastic woven bags, each bag of about 3 kilograms, and then put into the carton, the box wall to poke some vents to prevent hypoxia. In the process of ③ transportation, it is necessary to achieve "three precautions", that is, rain protection, sun protection and extrusion prevention. If special circumstances must be carried in summer, special attention should be paid to preventing high temperature. To prevent high temperature to achieve the following aspects: first, reduce the number of larvae in the bag, from 3 kg per bag in winter to less than 2 kg, which can reduce the heat in the population. Second, putting an appropriate amount of larval feces in the transport bag can also reduce the temperature within the population. Third, transportation can be carried out at night or in cloudy and rainy weather. The weather is cooler, which is beneficial to transportation.