Pond selection The pro-fish ponds require adequate water sources, flat bottoms, sheltered winds, and water insulation, with an area of ​​10 mu to 15 mu. Reasonable stocking The stocking density of broodstock can not only make full use of the water body, but also make the gonads develop well. Reasonable stocking density is an important condition for ensuring the success of broodstock breeding. The requirements for different varieties are: The main broodstock broodstock pond, stocking rearing weight of 5 kg to 8 kg of fish per acre 10 to 15 tails, bred broilers with the same specifications of 3 to 5 tail, tail weighs about 10 kg of broodstock fish 3 ~5 tail. The main broodstock broodstock pond, stocking rearing weight of 15 kg to 20 kg per acre species of fish 10 to 15 tail, rearing with a tail weight of about 10 kg of grass broodstock 3 to 5 tail. The main pond raising grass broodstock, stocked with 8 kg to 10 kg of broodstock per mu, 15 broodstock, broodstock or broodstock with 3 fish, head bream broodstock 12 kg. The ratio of male to female is generally 1:1.5, and the minimum is not less than 1:1. Daily management Pro-fish ponds should be staffed and carefully managed. Do a regular patrol pond, regularly add new water to increase dissolved oxygen, prevent leakage, maintain a certain water level, in order to increase the temperature of the water body. When continuous fine and water temperature is above 6°C, appropriate amount of fine material and green material should be fed to feed the fish directly to enhance the physical quality and reduce the loss of lice. For the pond where the main eel is raised, some fermented manure should be put in regularly throughout the wintering period to increase Water temperature, fertilizer quality. Fish disease prevention Winter broodstock is prone to fish diseases such as water mold and white skin. Care should be taken when catching the broodstock to avoid injury to the fish's skin and scales. Do not use fish that is heavily damaged by machinery as a broodstock for the following year. Treatment of hydromycosis can use 10ppm ~ 20ppm Weikang dip, or use Weikang 0.15ppm ~ 0.3ppm Quanchiposa. IT02S, is JRT new product in the early 2019, which is a single-point LiDAR sensor, also called tof distance sensor. With a micro size of 46x17x7mm, customers can widely use in many Laser Measurement Solutions. The lidar distance sensor can measure 12m short-range with high frequency up to 100hz. It's great for Unmanned Aerial Systems. If you need us send you data sheet and spec for this products, offering sample as well, pls tell us, thank you.
Accuracy
+/-8cm@ 0.1~3.5m
Measuring Unit
cm
Measuring Range (without Reflection)
0.1-12m
Measuring Time
0.1~3 seconds
Measuring Frequency
100 Hz
Laser Class
Class II
Laser Type
650nm, <1mw, red
Weight
About 5g
Voltage
DC2.5V~+3.5V
Serial Level
TTL 3.3V
Size
46*17*7mm
Operating Temperature
0-40 ℃ (32-104 ℉ )
Storage Temperature
-25~60 ℃ (-13~140 ℉)
2D Laser Distance Sensor,2D Lidar Sensors,Tof Lidar Distance Sensor, Flight Distance Sensor Chengdu JRT Meter Technology Co., Ltd , https://www.rangingsensor.com
IT02S Mini Tof Sensor Module Diagram
Parameters of IT02S:
IT02S – the High performance-price ratio measurement solution
* low power consumption of single transmit and single receive
* small size: 46*17*7mm
* low cost
* proffessional techinical support
Broodstock breeding is divided into postpartum care, autumn cultivation, winter cultivation and spring cultivation. Because of low winter temperatures, broodstock activities are reduced, feeding capacity is weak, and fish diseases are prone to occur; if poorly managed, it will have a great impact on the production of artificial hatching, fish seed production, and adult fish farming in the coming year. The main technical points for cultivating broodstock in winter are: