White tail shrimp rearing and breeding techniques

Rearing and rearing techniques of white-tailed shrimp: 1. Pond conditions: Use of existing shrimp breeding ponds for self-breeding and aquaculture, with muddy or sandy sediments at the bottom of ponds, with a salt range of 1000-th. 4-35, the salinity in the self-reproducing stage is between 15-25th of a thousandth, the PH value is between 7.6-8.6, and the depth of the shrimp pond surface is about 0.8-1m. 2. Disinfection in clear ponds: After the shrimp ponds have been reared for the second time, there are certain sediments at the bottom of the pond. Disinfectants can be treated with two kinds of drugs: quick lime and tea cake. First use lime, the amount of mu is 150-200 kg, after the use of tea cake, 15-20 grams per cubic meter of water, 2 days after application can be water. 3, water and fertilizer: generally after the pond and disinfection, about 10 days before stocking in the water and fertilizer, cultivate basic food bait. When entering the water, it is necessary to use a 60-mesh cone filter to prevent entry of predatory fish. Start influent 20-30 centimeters and fertilize, it is better to apply fermented organic fertilizer in Xintang, apply 20-25 kilograms per acre. Laotang is suitable for chemical fertilizers. For the first time, apply 1-2 grams of nitrogen fertilizer and 0.1-0.2 grams of phosphate fertilizer per cubic meter of water. Apply fertilizer every 3-5 days in sequence, and gradually add water to 60-80 to keep the water green or yellow-brown. The transparency is controlled at 20-30 points. 4, broodstock transport: broodstock should be selected for natural fishing, the individual size is uniform, transport methods, can choose live water trucks, grid layering gas shipment. Obedient broodstock in the fall can generally choose to stock at the end of September, this time is suitable for white shrimp natural breeding water temperature, so that juvenile prawn cultivation to the winter there is a certain time difference, each holding egg broodstock 2-4 pounds or so, depending on the shrimp pond conditions identified . 5. Natural breeding water quality management: Water quality cultivation of shrimps prior to stocking is the key, in which salinity should be controlled between 16-25 percent. Every day to the edge of the inspection, if individual broodstock spawning, you can gradually add new Water will be filled with water for about a month. According to the water quality and weather conditions, additional fertilizers should be added to ensure the transparency of 20-30 cm. The limestone is dispensed once every two weeks. The amount of quicklime is 10-15PPM, which can sterilize the water quality, increase the amount of calcium, and accelerate the peeling of white-tailed shrimp. 6, feed delivery: With the growth of white shrimp larvae, just rely on fertilization to cultivate basic biological feed, can no longer meet the needs, you must manually feed. According to the source of feed and cost, choose plant feeds, such as peanut cakes, wheat cakes, rice bran, etc., animals, such as Cladocera, copepods, rotifers, miscellaneous fish and so on. The best quality ingredients. Feeding time was fed once every morning and afternoon on the afternoon, and the feeding amount was determined according to eating conditions. Generally, the dry material was 3-5 percent of the white shrimp body weight, and the fresh material was about 10 percent. 7. Daily management: Adhere to the patrol pond daily morning and evening to check the eating conditions of the ridge-tailed white shrimp. If empty stomach is found, increase the feeding amount properly, check whether there is oxygen deficiency, and if any new water is added in time, it is conditional to start aeration. Machines or oxygen booster and other measures. Periodically check the body length and regularly measure the water temperature. If the water temperature drops to 10 degrees, reduce the feeding or not feeding, and at the same time, market the market according to market conditions.

Facial Beauty Massager

Here you can find the related products in Facial Beauty Massager, we are professional manufacturer of Facial Beauty Massager,Ultrasonic Face Massager,Pink Facial Beauty Massager,Mini Facial Slim Beauty Massager. We focused on international export product development, production and sales. We have improved quality control processes of Facial Beauty Massager to ensure each export qualified product.
If you want to know more about the products in Facial Beauty Massager, please click the product details to view parameters, models, pictures, prices and other information about Facial Beauty Massager,Ultrasonic Face Massager,Pink Facial Beauty Massager,Mini Facial Slim Beauty Massager.
Whatever you are a group or individual, we will do our best to provide you with accurate and comprehensive message about Facial Beauty Massager!

DRS Face Derma Roller: BL-1203

Feature:

1. the micro-needle therapy can effectively increase the penetration capacity of nutrients through the epidermis and dermis of skin cells, is a new and miracle skin care technology for its nutrient delivery method. The micro-needle therapy can stimulate dermal would healing ability, therapy stimulate the skin and ossein proliferation, make the skin epidermis proliferate about 8%, its effects can be comparable to the laser and stuffed cosmetic surgery. With minimum side effects, safe and reliable, is the best choice for anti-aging treatment.
2. Wrinkle upgrade: Instant upgrade, wake up skin regeneration, reduction of fine fine lines, expression lines abatement, reversing youth. Suitable eye pattern, forehead, perioral lines and other dynamic wrinkles, as well as the face of aging and photo-aging wrinkles, fine lines and sagging skin aging.
3. epithelium repair: regulation of damaged and sensitive skin epithelium reconstruction process, the regulatory function of the skin tissue differentiation and prevent scarring. Good cause excessive skin or epidermis grinding equipment such as damaged skin is too thin, sensitive skin cream and other unsafe products and redness caused by skin problems.

Micro Needle Nurse System Facial Massager BL-1203

Mini Face Massager Vibrator: BL-1201

Feature:

1). It has 5 massage heads, can change according to user`s need.
2). It can slims the face fat.

Facial Massager BL-1201

Facial Beauty Massager

Facial Beauty Massager,Ultrasonic Face Massager,Pink Facial Beauty Massager,Mini Facial Slim Beauty Massager

Ningbo Berkeley Electronic Technology Co., Ltd. , http://www.bonlifemassage.com

Posted on