KN95 masks and other respiratory protection series
This category shows the KN95 and other respiratory protection product series produced by our company. It is a kind of Respiratory Protective Masks that our company mainly produces. At present, it mainly displays labor protection respiratory series. You can choose a variety of colors and Specifications, logo can be customized, welcome to buy and consult, we will welcome you with warm service
Dongying Hongxing Labor Protection Products Co., Ltd. was established in December 1995 with a registered capital of 300 million yuan and total assets of 230 million yuan. It has 520 employees, including 22 professional and technical personnel, with a sales volume of 280 million in 2019. Yuan is a private enterprise integrating R&D, production and sales of labor protection products. The company has a professional R&D team, standardized production lines and quality testing facilities. The company produces and operates more than 1,000 products in 30 categories, including Body Protective Clothing, etc., which can meet the comprehensive needs of labor protection from Head Protective Cap to Foot Protective Shoes , that is, labor protection from head to toe. The company has successively become a director unit of the Occupational Health Protection Products Committee of China Textile Business Association, a member unit of China Labor Protection Products Alliance, a member unit of Shandong Labor Protection Products Industry Association, and a top 50 enterprise in the national labor protection industry; Anbeier brand has become Shandong Labor Protection Products Industry Association Recommended Brand. Labor protection products such as Body Protective Clothing and Hand Protective Gloves produced by the company can meet the multi-faceted needs of laborers, and various Daily Washing And Chemical Articles can meet the all-round needs of various companies. Welcome to consult and purchase.
Kn95 Masks,Personal Protective Masks,Labor Protection Masks,Multiple Protective Masks,Disposable Masks,Disposable Medical Masks Dongying Hong Xing Labor Protection Products Co.,Ltd. , https://www.hongxinglabor.com
Under the natural conditions, Obsidian Oriental is a carnivorous omnivorous fish. The fish fry eat rotifers, cladocera, copepods, etc. The juveniles and adult fish mainly eat shrimp, crab, snail, fry, aquatic insects, etc. Also eats plant leaves and filamentous algae. Under artificial breeding conditions, the fry are fed rotifers, cladocerans, etc. After domestication, juveniles and adult fish can ingest artificial compound feeds such as catfish and soft-shelled turtle feed. Currently, there is no specialized river compound feed. Therefore, the river The full price is expected to be developed.
Obscure oriental generally 2-3 years of sexual maturity, female individuals larger than the male, a spawning type, 10-20 million fecundity.
Pond culture technology
1. Fish species transportation and stocking In order to ensure the success of breeding, stocks of authentic dark-faced oriental fish should be selected for stocking that is robust, disease-free, non-injury, and has good specifications. Transportation is generally transported by oxygen in a plastic bag. The seedlings of 4-6 cm in length each contain 200-300 tails and can be transported for 5-8 hours. The survival rate is over 95%. 7-8 days before stocking, use clear lime, bleaching powder, tea bran and other clear ponds to disinfect. Before stocking, the seedlings should be sterilized with 3%-4% saline for 10-20 minutes. When stocking, care should be taken that temperature should not be too large, and the stocking density should be 2000-3500 tails/mu, as the fish grows, gradually catching large Small, dilute farming.
2. For feed feeding and water quality control, within one week of stocking, live fish, shrimp or chopped fish, shrimp, snail meat and other bait can be fed for domestication, gradually adapting to the farming environment and the composition of the bait. After eating habitually, gradually mix the artificial diet of squid or soft-shelled turtle in the bait, and transition to feeding the artificial compound feed. During the tame, we must ensure the freshness of the bait. We must also do it quantitatively, regularly, and regularly. Usually two times a day, once in the afternoon and one in the afternoon, the food table is set by the pond and fed at a fixed point. The daily feeding amount is 3%-5% of the fish's body weight.
River Xi fresh water environment, the best color of the river should be mung bean green color, transparency is about 30 cm, should be based on the pond's water color, water quality, transparency, dissolved oxygen and fish activity in time to add water or change the water. Generally speaking, the amount of pool water exchange may be less in the early stage of cultivation. However, due to the accumulation of residual baits and feces in the summer and high temperature seasons, the decomposition rate is accelerated, and ammonia, nitrogen nitrite, hydrogen sulfide, and other harmful toxic substances cause the dissolved oxygen and pH to decrease. , directly affect the food intake of puffer fish, serious or even cause the disease, Pan pool dead fish, so in the middle and late culture to gradually increase the amount of water, in the high temperature period can be added in the next morning and early morning cooling water and increase oxygen. Since the optimum temperature range for river growth is 9-32°C, when the water temperature exceeds 32°C in summer, it is necessary to inject new water or adopt temperature-reducing measures to regulate it. In winter, if the water temperature is lower than 9°C, it is necessary to conduct insulation and heating for overwintering. In addition, the river has a higher requirement for dissolved oxygen. When the dissolved oxygen in the water is lower than 1-5 mg/L, it begins to float. When it is lower than 1-3 mg/L, it begins to die. The dissolved oxygen in the pool should be kept above 3 mg/L. .
3, aquaculture and management of the river should be careful and meticulous, perseverance, we must pay attention to each link. Specific to do the following day-to-day management work:
(1) The patrol pond insists on patroling the pond every day to observe the river's activities, feeding and color, and water quality. Check the aquaculture facilities. If necessary, the physicochemical factors of the water should be regularly measured every day, such as water temperature, pH value, dissolved oxygen, ammonia nitrogen, transparency, etc. , And make a record.
(2) Adjust feed volume in a timely manner The river grows faster in the appropriate temperature range. With the increase of body weight, the total amount of daily feeding must be adjusted, and the body weight should be measured every 10-15 days, and the total weight of Tangzhong River should be calculated, and the feeding amount of the next stage should be adjusted accordingly.
(3) Fish Disease Prevention and control rivers are usually free of specific pests and diseases. Diseases that are more common in pond culture include hydromycosis, small melon worm disease, gill disease, and enteritis disease. In the production of prevention-based, every half or a month Quanchiposa disinfectant once, and regularly mix in the feed antibacterial drugs such as furazolidone, Coptis, astragalus, Cork, Banlangen, Andrographis and so on. Because the fish is particularly sensitive to the dose of anti-drugs and the treatment time, other fish commonly used doses must not be applied to avoid causing phytotoxicity.
(4) Timely rearing and harvesting When the breeding density is too large or individual differences are large, and the food is insufficient, the river has a habit of biting and biting each other and eating each other. Therefore, according to the actual situation, we must catch large and small fish in time and divide it into ponds. In the domestic market, the river's merchandise specifications are more than 400 grams, and the seedlings in the year of stocking are generally only grown to 150-250 g. Most of them will be listed in the following year. Therefore, according to the needs of the market, they must start catching sales in order to increase sales. Aquaculture benefits.
special reminder
Food puffer fish to prevent poisoning Obscure Oriental porcine viscera contains a highly toxic, the amount of the number of different parts and seasons vary. Under normal circumstances, male fish have lower toxins than females, and the ovaries and liver are highly toxic, followed by the kidneys, blood, eyes, sputum, etc. The skin, testis, and muscles are non-toxic. Hexotoxin is a highly toxic neurotoxin, which is 1250 times more toxic than sodium cyanide. Poisoning patients suffocate under the deep respiratory palsy.
Obscure Oriental Dolphin Pond Culture Technology
Biological characteristics Obscure Oriental dolphins are commonly known as puffer fish, mainly distributed in the lower reaches of the Bohai Sea, East China Sea, Yellow Sea, and Tongjiang Rivers. They are inshore and river bottom fish. With genital warts. From 3-5 months each year, sexually mature broodstock migrate to the Yangtze River to breed eggs. Juveniles live in rivers or lakes in the Tongjiang River and return to the sea in the second spring. When the sea grows up to sexual maturity, it goes back to the river to lay eggs in fresh water.