Fence breeding non-pollution crab technology

Fence farming crabs is a new form of crab farming developed on the basis of fish farming, and has broad prospects for development.
1. Selection of fencing sites Water quality should be clean and free from pollution, high dissolved oxygen content, lush aquatic weeds, water grass coverage should be above 20%, and ecological methods should cover more than 60% of crabs and aquatic grasses, and snails and other benthos should be abundant. . The water quality of the water source should meet the requirements of GB11607, and the water quality of the aquaculture water should meet the requirements of the “Water Quality Standard for Non-polluted Food Freshwater Aquaculture (NY5051-2001)”.
The perennial water depth of the fenced water is 0.5-2m, the water level is small, and it does not dry in the dry season. The bottom of the reservoir is relatively flat, with less silt, and the bottom is a clay hard bottom, preferably a sandy bottom.
2. Construction of fence facilities
2.1 The fence area and shape The area of ​​fence crabs should be determined according to the conditions and management level of the reservoir. The fence area for natural ecological culture is 10 to 50 square hectares. If the feed is mainly for crabs, the area is 1 to 3 square hectares. should. The shape of the fence is preferably a circle, multiple fences are together, and the square shape is better. Square fences should be designed with rounded corners to prevent crabs from climbing upright at right angles and playing at the bottom of the net. Hole escapes.
2.2 Structure and technology of the fence The general use of 33 polyethylene mesh weaving nets, mesh 2 ~ 2.5cm; the other is about 2mm mesh 7 strands of polyethylene mesh. The height of the fence is the average annual depth of the fenced area, usually 2 to 3m.
The upper and lower sides of the net are equipped with two polyethylene ropes, and the lower net foot is attached with a gauze net with a diameter of 10 to 15cm. Each 1m stone is loaded with about 7kg of stone, and the bottom net cage is inserted with a spear pile. 35cm mud, when the bottom hard, open ditch ditch. Or lay a 1.5m wide net on the inner side of the lower part of the net clothing, install a gabion on the foot of the net, and use a bamboo pile or stake to fix the net. A 40cm high anti-escape plastic plate is sewed on the top of the net. Every 2~5m along the delimited breeding area is inserted a wooden pile or bamboo pile with a diameter of 12crn and a height of 4~5m. Insert a 0.5~1m fixed fence at the bottom of the mud. .
A fence facility is usually built 5 to 10 cm outside the fence area to prevent winds and boat movements.
3, crab species stocking
3.1 The preparatory work before restocking is mainly to remove ferocious carnivorous fish and water mice from the fences such as black squid, squid and squid.
3.2 Choosing crab species The crab species should be of the same specifications, robust physique, complete appendages, no sickness, no injuries, and dexterous agility and no attachments on the body. The same batch of crabs purchased were placed in the same fenced area. Precocious puberty crabs are strictly prohibited. The deducted crabs must be sourced from original and improved varieties, and the quality is in compliance with relevant technical standards.
3.3 Stocking Density and Stocking Specifications Crab species stocking specifications and stocking rates vary according to the resource conditions, farming patterns, management levels, and product specifications required for production. In general, 4500 to 7500 crabs of 120 to 200/kg are placed on each hectare. If supplemented by artificial bait farming, 7500 to 10500 dwarf crabs with a size of 120 to 200/kg can be placed per hectare.
3.4 Restocking time and stocking method Earn enough time in mid-December or late December or before the end of March of the following year. During the restocking, a small fence of 2,000 to 6,000 square meters was built in the fence. After the crabs were disinfected with drugs, they were selected to be placed in small fences at the watery bushes or shallow banks. After 4 to 5 months, the water plants germinated and flourished. When the snails were bred to a certain amount, they were removed and the crabs were allowed to climb into the fenced area. Foraging. Crabs are planted in small enclosures and can be fed with some wheat, corn, vegetable cakes, bean cakes, pumpkins, small junk fish, etc. In the beginning, it is best to feed small junk fish, snails and clam meat.
4, feeding and management
4.1 Day-to-day management The key is to do a good job of preventing escape and stick to the patrol inspection every day. To achieve "four defenses" (ie, anti-escape, wind, flood control, anti-theft damage), "four diligence" (during patrol, ground maintenance, diligent removal of aquatic plant pollutants, ground recording fish and crab dynamics). Keeping the piles neat and tidy, the fences are clean and free of holes, and no nets are laid down. The gabions are not muddy, and the nets inside and outside the nets flow smoothly.
4.2 Scientific Feeding Before the New Fence 2a Due to the rich aquatic plants and natural food, it is generally not necessary to feed artificial feed. After breeding for 2 years, through the cultivation and transplantation of aquatic animals and plants, increase the density of natural food, in the case of basic meet the nutrient needs of crabs, can be fed an appropriate amount of fresh small fish, plant feed, supplement the lack of natural food.
Normally, early hatching of crab species should be mainly fed with animal baits to promote early growth and early feeding. From July to September, some vegetable diets can be fed, such as various aquatic plants, wheat, corn, vegetable cakes and bean cakes. Etc.; since mid-September, feeding animal feeds has been the mainstay.
4.3 Water Quality Management Residues of bait and rotten grass are often removed, and grassless channels are opened in dense areas of water plants to keep water flowing. From June to September, 120kg of quicklime is sprayed once every 20 days for 1 h to adjust water quality.
5. Commercial Crab Fishing Crab fishing starts from late September to the end of November and can be flexibly controlled according to the current temperature conditions and market conditions. Fence breeding fishing tools are mainly cages, crabs (Ecstasy) and so on, to the best cage, crab can be combined with the cage and fishing.

Ganoderma tea (Reishi Mushroom Tea/ Lingzhi Tea) is made of 100% USDA certified organic Ganoderma Lucidum. The Ganoderma Lucidum ingredient used for this product comes from our self-built organic Ganoderma farm located in Mt. Wuyi, Fujian, one of the largest Ganoderma origins in China. The whole cultivation process strictly follows the organic standards without any use of pesticide, herbicide, and chemical fertilizer to ensure its highest quality and efficacy.


tea1


This organic Ganoderma Tea is very convenient to carry and make. Each box has 25 individually packaged tea bags. Just open the sachet, put the tea bag in a cup and add hot water, a cup of warm and delicious Ganoderma tea will be ready for you in just 1-2 minutes.


tea2

This product has a unique mushroom flavor and a mellow sweet aftertaste. Different from other Herbal Tea on the market, Ganoderma tea has many health benefits, such as enhancing overall immunity, relieving stress, improving sleep quality and reducing allergy. It is gluten free, lactose free, and no additives or preservatives whatsoever, therefore it Is suitable for all people especially for people with low immunity or high stress.


Ganoderma Tea

Ganoderma Tea,Reishi Tea,Reishi Mushroom Tea,Herbal Tea,Ganoderma Lucidum Tea,Lingzhi Tea

Ganoherb International Inc. , http://www.ganoherb.us