The yellow snapper, commonly known as Huanggu and Huanglading, is a rare and valuable small-scale economic fish of freshwater. It has strong adaptability, rapid growth, tender meat and delicious taste, and it is popular in the market. In the current situation that the main technology for the stingray ponds has not yet been fully popularized, the cultivation of a certain number of stingrays in adult fish ponds is an effective production method to increase production and increase income to meet market demand. Practice has shown that nesting of stingrays in adult fish ponds does not require additional feeding and fertilization, nor does it affect the growth of other fish. It can also effectively remove wild fish and shrimp that compete with fish and compete for oxygen in pools, and promote ponds. The comprehensive utilization of water bodies and resources and a virtuous cycle of ecology. At the same time, the stingray can also swallow the anchor fork and copepod larvae in the water to reduce the breeding of fish diseases and improve the economic benefits of fish farming. In recent years, most of the ponds in Minjiang City have nested stingrays. Generally, they produce 15 to 20 kilograms of stingrays and increase their income by 300 to 400 yuan.
The technical points are now described as follows:
Pond ponds that choose to raise yellow catfish need to have certain conditions. The water surface is generally 5 to 20 mu, the water depth is 1.6 to 2 meters, the ph value is between 7 and 8, the water source is sufficient, the water quality is good, there is no pollution, and drainage is convenient. The water retention performance of the pond is good, the bottom of the pool is flat, and the mud is 10 to 15 cm thick, and an aerator is installed. The size of the fingerlings raised in the fingerlings of the stingrays should be large. Individuals are usually selected every year. They require strong physique, bright colors, no injuries, no sickness, and lively swims with neat specifications. It is better to stock the stingray with a tail weight of 30 grams or more. Fish species must be washed with 3% saline for 5-8 minutes before entering the pool. Set the density of ponds The density of stingrays should be based on the number of wild fish in the pond and the size of the stingray species, and the amount of wild fish in the pond can be increased, otherwise less. The small size of stingrays can increase the amount of stocking properly, and vice versa. The general specifications of 30 to 50 grams of stingray can be placed between 70 and 90 tails of acre.
The daily management of feeding and management is carried out according to the conventional fish farming operation specification, so that “four definite†feeding and “three-viewing†fertilization are carried out.
During the cultivation period, special efforts should be made to improve water quality management. Every 15 days, it is necessary to use lime water to splash the entire pond once. The dosage per acre is 20 kg, and 30 cm of water should be changed before application. New water is often added, usually every 10 to 15 days, 1 injection of water every 5 to 7 days in the hot season, and 1 to 2 times every 30 days to keep the pool water, live, tender, and cool. The water transparency is about 30 centimeters. Aerators are activated at the right time to provide sufficient oxygen for the ponds, to maintain the rainy weather, open at noon, dawn, and when the fish floats its head, so that it can be “diligently opened and opened†to fully exert its oxygenating effect. Adhere to the three patrols at the early, middle and late nights and observe the fish activities, food intake and growth carefully. Find problems and deal with them in time. The use of food hanging bags, hanging baskets, feed, water, food, tools for drug disinfection and other measures to prevent fish diseases. It has been found in practice that stingrays are reared in ponds and have fewer bacterial diseases, but there are more parasites, mainly protozoal diseases.
Diseased fins, mucus on sputum increase, unresponsive, head and tail on the side or side, prevention and control can be used per cu m of water with copper sulfate and ferrous sulfate mixture (5:2) 0.7 grams of water Quanchiposa. In addition, intestinal inflammation also occurs from time to time, diseased fish swim alone, abdominal swelling, anal swelling, light pressure abdominal yellow mucus outflow. Prevention and cure of the disease can be splashed with water 0.8g per cubic meter of water.
The technical points are now described as follows:
Pond ponds that choose to raise yellow catfish need to have certain conditions. The water surface is generally 5 to 20 mu, the water depth is 1.6 to 2 meters, the ph value is between 7 and 8, the water source is sufficient, the water quality is good, there is no pollution, and drainage is convenient. The water retention performance of the pond is good, the bottom of the pool is flat, and the mud is 10 to 15 cm thick, and an aerator is installed. The size of the fingerlings raised in the fingerlings of the stingrays should be large. Individuals are usually selected every year. They require strong physique, bright colors, no injuries, no sickness, and lively swims with neat specifications. It is better to stock the stingray with a tail weight of 30 grams or more. Fish species must be washed with 3% saline for 5-8 minutes before entering the pool. Set the density of ponds The density of stingrays should be based on the number of wild fish in the pond and the size of the stingray species, and the amount of wild fish in the pond can be increased, otherwise less. The small size of stingrays can increase the amount of stocking properly, and vice versa. The general specifications of 30 to 50 grams of stingray can be placed between 70 and 90 tails of acre.
The daily management of feeding and management is carried out according to the conventional fish farming operation specification, so that “four definite†feeding and “three-viewing†fertilization are carried out.
During the cultivation period, special efforts should be made to improve water quality management. Every 15 days, it is necessary to use lime water to splash the entire pond once. The dosage per acre is 20 kg, and 30 cm of water should be changed before application. New water is often added, usually every 10 to 15 days, 1 injection of water every 5 to 7 days in the hot season, and 1 to 2 times every 30 days to keep the pool water, live, tender, and cool. The water transparency is about 30 centimeters. Aerators are activated at the right time to provide sufficient oxygen for the ponds, to maintain the rainy weather, open at noon, dawn, and when the fish floats its head, so that it can be “diligently opened and opened†to fully exert its oxygenating effect. Adhere to the three patrols at the early, middle and late nights and observe the fish activities, food intake and growth carefully. Find problems and deal with them in time. The use of food hanging bags, hanging baskets, feed, water, food, tools for drug disinfection and other measures to prevent fish diseases. It has been found in practice that stingrays are reared in ponds and have fewer bacterial diseases, but there are more parasites, mainly protozoal diseases.
Diseased fins, mucus on sputum increase, unresponsive, head and tail on the side or side, prevention and control can be used per cu m of water with copper sulfate and ferrous sulfate mixture (5:2) 0.7 grams of water Quanchiposa. In addition, intestinal inflammation also occurs from time to time, diseased fish swim alone, abdominal swelling, anal swelling, light pressure abdominal yellow mucus outflow. Prevention and cure of the disease can be splashed with water 0.8g per cubic meter of water.
Therapeutic heating pads usually operate from household current and must have protection against overheating.
A moist Heating Pad is used dry on the user's skin. These pads register temperatures from 76 to 82 °C (169 to 180 °F) and are intended for deep tissue treatment and can be dangerous if left on unattended. Moist Heating Pads are used mainly by physical therapists but can be found for home use. A moist cloth can be added with a stupe cover to add more moisture to the treatment.
Image as below:
Therapeutic Heat Pad, Therapeutic Small Electric Heating Pad, Heated Therapeutic Knee Pads, Therapeutic Heat Pad for Shoulder
Ningbo Makeheat Electrical Appliance Co., Ltd , http://www.makeheat.net