CATDOLL : CATDOLL: Is scorpion breeding reliable? Can it be bred on a large scale artificially?

1. Is scorpion breeding reliable? Can it be bred on a large scale artificially?

High mortality rate and difficult to master technology

2. Who knows any information about an insect called ground beetle?

This should be the larva of the ant fly,%D2%CF%F2%C8%D3%D7%B3%E6&z=0

Ants

Open category: Insects

A general term for insects of the family Myrmeleontidae. This type of insect has short antennae, which are equal to the sum of the length of the head and thorax, and are swollen at the end. The morphology is very similar to that of a damselfly, with narrow and long wings, unclear wing moles, and long submolar wing chambers. The larvae have digging hind legs. Most species wait for prey on the ground or in ambush in the sand, or chase prey on the ground. Some species capture prey through traps, and the larvae hide at the bottom of the funnel-shaped traps and feed on ants and other insects that fall into the traps, so the larvae are called ant lions. The larvae move backwards, so they are also called "backward insects" and can be used in traditional Chinese medicine. Common ant flies in my country include Myrmeleontidae and Myrmeleontidae.

Euroleon sinicus Nar'as

English name: antlionfly

It belongs to the order Neuroptera and the family Myrmeleontidae.

The body length is 24-32 mm; the front wings are 25-34 mm long, and the hind wings are 23-32 mm long. It is a large Neuroptera insect. The body and wings are narrow and long, and the veins are like a net. The shape is a bit like the damselflies and damselflies of the Odonata order, but when it is still, the four wings are not flat or upright on the back, but the front wings cover the hind wings, and the abdomen is clamped close to the left and right to form a roof-like shape.

The larvae of the antfly are called antlions. They have thick bodies, raised abdomens and backs, and are covered with hair. They have well-developed, long, curved upper jaws with teeth on the inside. They dig funnel-shaped holes in sandy soil, bury themselves at the bottom of the holes with only the head exposed, and wait for small insects to fall in, clamp them, and eat them.

Distribution: North China, Northeast China, Northwest China; Mongolia

3. Toad breeding

1. Site selection The breeding site should be selected in a place with ponds and pools, rich insect sources and warmer temperatures. Generally, waste ditches, ponds or puddles can be used in front of and behind houses, or rice fields with convenient drainage and irrigation, sufficient water sources, good water retention but thin can be used as breeding farms. The breeding farm should be built with bricks to build a 1.5-meter-high wall, or it can be made of film or gauze, or it can be made of wire or hills to prevent toads from escaping. Plastic gauze should be used as a sluice at the entrance of the rice field to prevent tadpoles from escaping.

2. Introduction: When the breeding volume is very small, breeding toads mainly rely on capture. Adult toads mostly leave their hibernation caves at the end of March or the beginning of April and slowly crawl out of the water. Toads like warm, dark and humid environments. They usually live in the grass and earth holes by the ditch during the day, or in dark and humid places such as bricks and tiles and stone holes behind the house. They are generally not easy to find. On rainy days or after rain, they are often easy to catch in the open space by the river or by the country road. During the spring ploughing season, there are also many toads in rape fields, green manure fields and on the paths of rice paddies. At this time, they can be caught in large numbers. The best time to catch toads is at night when the weather is warm and the wind is calm. Every evening, about 2 hours after dark until dawn the next day, toads come out to prey on insects. Toads can be caught at any time. At this time, the place with the most toads is the open space in front of and behind the house. They are especially active at midnight every night. Sometimes toads weighing dozens to hundreds of kilograms can be caught in a few hours. The method of catching is to gently clamp the toad with a wide bamboo clip and put it into a bamboo basket or a wooden box with gaps. Do not put it into a closed plastic bag to prevent suffocation. To catch it at night, you can use a flashlight with three batteries to shine the strong light on the toad, and it will not run away easily. Because the toad has short limbs and poor jumping ability, it usually crawls slowly, so it is easy to catch it once it is found. The ratio of male and female toads is generally 3 females to 1 male. The fertilization rate can reach more than 90%. The stocking density is 1-2 pairs per square meter.

3. The main food for toads is insects. Small insects include sticky insects, ants, aphids, mosquitoes, stink bugs, beetles, weevils, cutworms, beetles, etc.; large insects include mole crickets and green leafhoppers. Artificial breeding can solve the problem of feeding by using black light to lure insects or catching insects manually. In addition, breeding algae and other plankton can also solve the staple food of toads. Pig, cattle, human feces and urine, vegetable scraps, kitchen waste water, waste from slaughterhouses and food factories, fertilizer water or bran are also put into the breeding and breeding fields to cultivate water quality and promote the growth of algae and plankton. Flies can also be caught and salvaged manually to meet their food needs.

IV. Reproduction From the end of February to March every year, when the water temperature is between 11 and 15℃, the Chinese giant toad will mate and lay eggs. Toads awakening from hibernation usually gather at the bank of the pond or on aquatic plants and floating objects at dusk. The males sometimes hum and sometimes move their bodies to find females, who come to them upon hearing the sounds. Toads have a strong reproductive capacity. An adult toad can lay 3,000 to 5,000 eggs a year. For artificial breeding, eggs should be collected in time and placed from buckets into breeding ponds or paddy field breeding bases as soon as possible to avoid suffocation due to accumulation for too long. The egg laying density is generally 500 egg bands per mu, with an average of 2,600 eggs per band, that is, about 1.3 million eggs per mu. Under the condition of water temperature of 18-24℃, the fertilized eggs can hatch into tadpoles after 3 days and nights. The newly hatched tadpoles are fish-shaped with tails and external gills. After the tadpoles open their mouths, they can be fed with a mixture of boiled egg yolks, steamed bread residues and vegetable leaves. After about a month, the hind limbs of the tadpole emerge first, and the forelimb buds are hidden by the gill covers, which are not obvious from the appearance. After the hind limbs are fully developed, the forelimbs appear before the tail begins to shrink. The gills in the tadpole gradually shrink, and the tadpole begins to breathe with lungs. The tail gradually shortens and disappears, and wart-like glands appear on the back. This is the young toad after metamorphosis. Young toads feed on small insects, and the feeding is basically the same as that of adults.

5. Toads overwintering Toads overwintering is the key to artificial breeding of toads. The survival rate of overwintering is directly related to the yield and benefits of breeding toads. At present, people have explored a new method of artificial outdoor overwintering pool for toads. Choose a place with long sunshine time, good wind shelter conditions and no water accumulation, dig a pool with a side length of 135 cm square and a depth of 50 cm, and use wooden boards to make a wooden frame with a side length of 130 cm square and a height of 70 cm (without bottom and cover). Put the wooden frame into the pit, the bottom should not be too large, so that the accumulated water can penetrate from the gap. At 40 cm from the ground, use a wooden board 139 cm long and 50 cm wide to make a small room. Fill the bottom layer with a mixture of fallen leaves, straw and soil, fill the middle layer with fallen leaves, cover the upper layer with straw, put soil in the lower room, and finally cover the top of the pool with iron wire, and insert a thermometer and hygrometer in the pool. ` In the natural environment, toads usually hibernate in fields or ponds where they are relatively moist, sheltered from the wind, and exposed to sufficient sunlight. If the environment is not suitable, the mortality rate during the winter is very high. When raising them artificially, they must be well protected during the winter.

The Chinese giant toad is distributed in the north and south of my country, in hilly areas and Pingba areas below 1,000 meters above sea level. Except for the reproductive season, it hides under stones, in the grass or in earth holes during the day. At dusk, it often moves around the roadside, on the edge of the field or on the grass, on river rocks, by the pond, along the ditch and near homes to forage for food. Especially after the rain, more people go out for activities. Toads feed on small animals, such as snails, slugs, mosquitoes, ants, locusts, katydids and crickets. In South China and Southwest my country, there is a black-rimmed toad that can eat a large number of white ants. The toad is clumsy, staggering, often crawling, not good at swimming and jumping. Because of its short hind legs, it can only make short jumps, generally not more than 20 cm. In October, most toads enter the water and hide in the weeds, mud or earth holes at the bottom of the water to hibernate. Toads are cold-blooded animals, and the length of their hibernation period varies with the temperature differences in different places. They are fertilized in vitro and lay eggs. After coming out of hibernation, toads enter the water and begin to mate and lay eggs. The spawning season varies from place to place. In North China and Inner Mongolia, eggs are usually laid in April and May, while in Chengdu Plain, eggs are laid in January and February. The male and female mate usually lasts for 9-12 hours, and some can last up to 24 hours. The eggs are arranged in a tubular colloid egg belt, which is about 10 meters long and contains about 5,000 eggs. The eggs are small, about 1.5 mm in diameter, extremely black in animals and extremely dark brown in plants. The tadpoles are black in color, and their tail fins are weak and thin. It takes about 60 days from the fertilization of the eggs to the transformation into young toads. Young toads live on land, and the newly grown young toads are about 10 to 13 mm long. Toads do not have high requirements for their habitats and are easy to raise and breed artificially.