Goji Berry is taken as one of the most famous plants, which can be both for medical and eating use. The history of goji berry up-picking and for eating use has a long history of 4000years in China. People from different social hierarchies, from the emperor to ordinary people, take goji berry as a good component of medical prescriptions. Goji berry enjoys a great popularity from ancient to modern times, at home and abroad and it has a long lasting and profound life preservation culture.
Ningxia Goji Berry enjoys a great fame around the global due to its high quality standard; meanwhile, it is the only protected product of geographical identity in China, goji berry has a great popularity describes as "goji berry of the world is in China, goji berry of China is in Ningxia and Ningxia`s goji berry is the best".
Specification:
Ningxia goji berry is categorized into 5 levels for experimental use. The fruit particles are required to have evenness in shape, with juicy fruit but not dry particle with impurities, humidity or bitten by insect.
Top Level:≤ 250grains/50g
Excellent Level:≤ 280grains/50g
Superfine Level:≤ 370grains/50g
First Rate:≤ 580grains/50g
Second Rate:≤ 900grains/50g
2. Identification
Color: The color of Ningxia goji berry should be red or dark red and lack luster.
Shape: Ningxia goji berry has big spindle size in shape with thin skin and full pulp. The particle is somewhat above normal size with style trace at the front of the particle and white stipe trace at the bottom.
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Flavor: Ningxia goji berry is astringent at first bite then sweet, without ill-smell.
Manual artificial regulation of cultured jellyfish in plastic greenhouses
Begonia is a large marine edible jellyfish, which is fragrant, brittle, and popular, and has always been dominated by natural fishing. In the past two or three years, due to its rapid growth, low breeding cost, good marketability, and high economic efficiency, It has become one of the hot spots in aquaculture. Various types of trials have been carried out in various regions. However, due to the breeding technology is still in the exploration and development stage, the outdoor breeding success rate is generally low, and the breeding time is limited to the summer and autumn, the product can only be listed on the season, the goods are expensive, not enough. In actual production, we organically combine vegetable greenhouse cultivation technology with sea bass breeding, conducted experiments on artificial seabream culture under artificial control conditions, and achieved good results. The farming techniques are summarized as follows: (1) Choose suitable ponds for construction of plastic greenhouses, and modify the strip ponds with unlimited length, width of 20 to 40 meters, and depth of 1.2 to 1.8 meters. Level the bottom of the pool and surround them with plastic film. . And use coarse bamboo rod as the column, the spacing is 2 ~ 2.5 meters; use bamboo or bamboo as the top support, the spacing is 1.5 ~ 2 meters; with the wire to the vertical and horizontal netting of the roof nodules fixed, on the sealing fog Drop-type film, external use big eye mesh and cable fixed, leaving the outlet and damper at both ends, and set up a good drainage system. Generally, the area of ​​each shed is 0.07-0.7 hectares, which is not easy to manage and regulate. Semi-circular treatment around the shed, do not leave dead corners. (II) There are three methods currently used for the breeding and feeding of 1 seedling source: The first is the capture of natural seedlings at sea. The second is semi-artificial seedlings. In other words, the sea bream that matures at sea is harvested, and the seed is obtained by artificially attaching the base. The third is artificial seedlings. The use of adult clams or artificially cultivated clams is used to obtain high quality seedlings through intensive cultivation and propagation. When the seedlings grow to 1.5-2 cm or more, they can be used as seedlings. 2 Seedling seedling density is generally controlled at 5-8/cubic meters. Before the seedlings are raised, the rearing ponds should be filled with 50-60 cm of water, depending on the quality of fat and lean, the basic organisms should be fertilized with fermented organic fertilizers to meet the feeding needs of the young larvae in the early stage. As sheds that are produced all year round, different cultivation ponds for unicellular algae, rotifers and Artemia should be set up to breed high-quality bio-feeds, and they should be grading and feeding depending on the physiological needs of sea otters at different growth stages. When investing seedlings, attention should be paid to adjusting the water temperature, salinity, and other relevant physical and chemical factor indicators of nursery ponds and agroponics pools, and try to make them tend to be the same, so as to avoid the effect of excessively large and affect survival. (3) Aquaculture management 1 Water quality regulation Yangyang water conservation. According to the practice, the fertilizer should be stable for 5-7 days after the seedlings are released, and then add water when the young cubs gradually adapt. Water should be added less frequently, and each time water is added and the amount of water in the later period should not exceed 15% of the total body of water. When the amount of water is increased to the maximum, a proper amount of water should be replaced with metabolism to maintain a good and stable growth environment for the young quail. Before each addition of water, water temperature and salinity measurements should be made regularly to avoid excessive changes. In the winter and spring, due to the large difference between the temperature inside and outside the shed and the water temperature, a small shed can be set up in front of the shed to pump water into sunlight. When the water temperature rises to a certain level, add water and add water. The time is around 3 to 4 pm every day. 2 The bait regulates the use of small plankton as bait in the natural environment, and has a strong feeding activity. It stays up all day and night. After a full-fed diet, it takes 4 to 5 hours to complete digestion. Therefore, it needs constant drift in the sea to feed on fresh bait. Satisfying “mouthâ€, under the condition of artificial breeding, fresh live bait has always been one of the “bottleneck†issues that plagued its development and growth. Especially during the middle and late breeding period, its “cockroach†feeding process often causes live bait to run short of supply, while bait The deficit of the sea bream can easily cause death of the jellyfish. Therefore, the selection of supporting plankton (unicellular algae, rotifers, brine shrimps, etc.) cultivation ponds is of vital importance. Generally, the supporting pool (shed) area should be 1.5 to 2 times of the cultivation ponds. In the early stage of breeding, the basic organisms of self-reproduction can be used, and rotifers can be inoculated at the same time to prepare for the growth of life. The rotifers use monophytes as the main bait. Insufficient portions of fresh yeast or spirulina can be added for rotifers. After growing up, they were collected and fed with 300 mesh bags. When the seedlings have an umbrella diameter of about 3 to 3.5 centimeters, they should be transferred to the Artemia nauplii, and then gradually to the small Artemia bait, and assist other copepods, Cladocera and small shrimps, etc. Adult Artemia is difficult to feed for the jellyfish even in the later period of culture. This is because of the food restrictions caused by its small mouthparts, and the jellyfish is insensitive to various artificial diets, and the bait feed utilization rate is low. Extremely low. In the middle and later stages of breeding, in order to compensate for the lack of natural food, wild rotifers or Artemia can be harvested or acquired for feeding. Since the water in the shed is limited, the feed must be fresh and free from contamination, and if necessary, simple rinsing and disinfection should be performed. In order to avoid the introduction of pathogenic bacteria, resulting in failure of breeding. The control of feeding amount is combined with manual observation. Several fixed feeding points can be set in the shed, and the degree of "eighty fullness" is adopted. After sea lice are eaten satisfactorily, they will gradually dissipate, or the transparent sampling bottle will be used for multiple sampling observation. To determine the appropriate number of baits. The number of feedings is usually 2 to 4 times per day. 3 Ventilation and oxygenation The growth of sea otters requires a good gas-liquid environment, so attention should be paid to timely ventilation. Especially in the later period of cultivation, due to the special environment in the shed, the water flow and air flow are relatively unsmooth. In view of this situation, a small aerator should be set up, and aeration can be performed by laying down straws and gas stones. Large impeller-type and waterwheel-type aerators are not suitable because they have large blades and water flow and are likely to cause damage to the sea otters. In the cold season, the roof of the shed should be covered with straw curtains for heat preservation. Before and after noon, there is plenty of sunshine and high temperatures. The curtain can be used to increase oxygen and temperature. In the warm season, the plastic film on both sides of the greenhouse can be rolled up and fixed to make the ventilation smooth. Reduce the temperature. 4 disease prevention and control of sea lice is currently rare, it can only be routine control. However, to prevent the entry of fish, crabs, and other harmful organisms, a good control effect can be achieved by previously disinfecting and removing harmful substances and blocking them at the inlet with a 20- or 40-mesh bag. (D) Harvesting and Processing Sea otters grow fast and have suitable conditions. They can reach commercial specifications in 50-60 days, and individuals generally weigh 5 to 10 kilograms or more. At this time, they can be collected in batches, captured large and small, and listed one after another. There are many ways to harvest it. The general equipment is dip net or set net, and finally it can be harvested. Although jellyfish can be eaten fresh, due to the body and tentacles containing neurotoxins, it should be advised to eat carefully. Generally used salt, alum for 2 to 3 times of marinated processing, not only easy to save, and the flavor is more unique and delicious, to meet the food and market needs throughout the year. (V) Analysis of benefits and prospects From the current consumer market and breeding trends, the first is that with the increasing shortage of natural resources in Haishu, their prices have remained high. In 2002, fresh oyster kilograms were priced at 12 to 16 yuan, and finished products at 60 renminbi were in excess of supply, and supply was in short supply. The market was in short supply. Second, under the condition that the overall efficiency of most of the cultured species is low, the cultivation of jellyfish greenhouses can be described as one of the best. When the seedlings are artificially solved, they can be cultivated 5 to 6 times a year, and the net profit per house is generally 3 More than 10,000 yuan. Under the current situation, the development of plastic sheds for sea bream breeding will be adopted as a breakthrough. The development of integrated breeding of sea lice shall be carried out in order to bring about a variety of cultivation of the cultivars of the sea bream. This will lead to the formation, industrialization and socialization of sea bream breeding. We will make this sunrise industry bigger and stronger, and radiate deeper and deeper development along the coast of the country, provide quality products for the society, further release and develop productivity, and provide a practical new path for the conversion of fishing and processing to the direction of farming, with extremely wide social significance. .