First, choose the venue.
Aquaculture sites should be located in areas with ponds, pools, or shallow water bodies where insects are abundant and temperatures remain relatively warm. Suitable locations include small backyards, unused ditches, old ponds, puddles, or paddy fields that have good drainage and irrigation systems, as well as a steady water supply and good water retention. To prevent escape, farms can build 1.5-meter-high walls using bricks, membranes, or gauze. Wire mesh or natural hills can also serve as barriers. In paddy fields, plastic gauze can be used at the sluice gates to prevent the creatures from escaping into surrounding areas.Second, introduction.
When starting with a small number of specimens, it's common to collect them directly from the wild. Adults begin to emerge from their hibernation caves in late March or early April, gradually climbing out of the water. They prefer warm, dark, and humid environments, often hiding in grassy areas, soil-filled ditches, or behind houses in damp and shadowy corners like cracks between stones or bricks. After rainy days, they tend to appear on open ground near rivers or quiet alleys, making them easier to catch. During spring, crickets are commonly found in rapeseed fields, green manure fields, and along small roads in Putian, offering great opportunities for large-scale collection. The best time to catch them is during the quiet hours of the night, especially about two hours after sunset until the next morning. At this time, the largest numbers of crickets are found in open spaces behind homes, particularly around midnight, where tens to hundreds of pounds can be collected. To capture them, use a wide bamboo clip to gently hold the cricket and place it in a bamboo basket or wooden box with small gaps—never in a sealed plastic bag, as this can cause suffocation. Using a three-cell flashlight at night helps illuminate the crickets, keeping them from running away easily. Due to their short legs and limited jumping ability, they usually move slowly, making them easy to catch once spotted. The ideal male-to-female ratio for breeding is typically 3 females to 1 male, which ensures a fertilization rate above 90%. Stocking density should be 1 to 2 pairs per square meter.Third, rearing.
The primary diet of quails includes various small insects such as armyworms, ants, aphids, mosquitoes, stink bugs, chafers, weevils, small beetles, and others. Larger insects like cockroaches and big leafhoppers can also be used. For artificial breeding, black light traps or artificial insect traps can be effective in attracting and feeding the animals. Additionally, cultivating algae and plankton in controlled environments can help meet the dietary needs of larger species. Other organic materials such as pig and cattle waste, vegetable scraps, kitchen wastewater, slaughterhouse byproducts, and food factory waste can be used to enrich the water and promote the growth of algae and plankton. Manual collection of flies and other insects can further supplement their diet.Fourth, reproduction.
From late February to March each year, when water temperatures range between 11–15°C, Chinese cockroaches begin mating and laying eggs. After emerging from hibernation, they tend to gather along pond banks or on aquatic plants and floating objects. Males emit sounds while moving, searching for females. Female cockroaches respond to these calls. Earthworms have strong reproductive abilities, with each adult capable of laying 3,000 to 5,000 eggs annually. For artificial breeding, it's crucial to collect eggs promptly and transfer them to the breeding area immediately to avoid suffocation. Egg density is generally around 500 eggs per acre, with an average of 2,600 eggs per band, equating to approximately 1.3 million eggs per acre. Under water temperatures of 18–24°C, fertilized eggs hatch within 3 days, producing small quail-like larvae that resemble fish, with tails and lemmas. After hatching, they can be fed with hot egg yolk, sorghum bran, and cabbage leaves. About one month later, the first hind limbs become visible, while the front limbs remain hidden. As the hind limbs fully develop, the front limbs appear, and the tail begins to shrink, signaling the start of lung development. The tail eventually disappears, and a warty gland appears on the back. This marks the metamorphosis stage. Juveniles feed on small insects and closely resemble adults in behavior and diet.Fifth, overwintering.
Overwintering is critical in artificial earthworm breeding. The survival rate during winter directly affects the yield and profitability of the operation. A new method has been developed for outdoor wintering in ponds. Choose a sunny spot with good shelter and no standing water. Dig a pool measuring 135 cm long and 50 cm deep. Construct a wooden frame 130 cm long and 70 cm high (without a bottom or lid) and place it in the pit. Ensure the base allows some water penetration through gaps. At a height of 40 cm from the ground, build a small wooden box measuring 139 cm in length and 50 cm in width. Fill the bottom layer with a mix of fallen leaves, straw, and soil, then add a middle layer of fallen leaves and cover it with straw. Place the lower chamber on the ground. Finally, cover the pool with wire mesh and insert a thermometer and hygrometer inside. In nature, frogs typically overwinter in wet, sheltered areas with sufficient sunlight. If conditions are poor, winter mortality rates can be high. Artificial breeding requires careful protection during the winter months.Long distance LiDAR sensor series are particularly easy to communication thanks to their fixed connector, which can be plugged it up and off by yourself. Voltage is wider from 8v before to 36v. Low power consumption feature makes it beceome a very competitive, high performance-price ratio, long range Laser Distance Sensor.
Highlights:
> Measurement frequency: 400 Hz (Max 60m 3000Hz)
> Long range: 200m
> High temperatures: -10~+50℃
> UART output
> Connector design: easy to use
Parameters:
|
Accuracy |
±10cm(<50m) /±1%(>50m)* |
|
Measuring Unit |
cm |
|
Measuring Range (without Reflection) |
0.1-200m |
|
Interface options |
Serial/usb/rs232/rs485/bluetooth |
|
Measuring Frequency |
400 Hz |
|
Laser Class |
Class I |
|
Laser Type |
905nm |
|
Weight |
About 20g |
|
VInput Voltage |
8V-36V |
|
Resolution |
1cm |
|
Size |
43*35*21mm |
|
Operating Temperature |
-15℃~50℃ |
|
Storage Temperature |
-40℃~85℃ |
Chengdu JRT Main Ranging Modules: Industrial Laser Distance Sensors, Laser Rangefinder Sensor, Tof LiDAR Sensors.
Speed Laser Sensor,Long Range Lidar,Long Range 3D Lidar,Long Range Radar Sensor
Chengdu JRT Meter Technology Co., Ltd , https://www.jrt-measure.com