How to improve aquaculture efficiency
1. Reasonably set up carnivorous fish. In the same pond, properly carnotizing some carnivorous fish (such as carp, black carp, Californian carp, squid, etc.), and using these fishes to remove the low-valued small wild fish in the pond. It has transformed itself into a high-quality aquatic product. At the same time, it has reduced the competition for food and competition for oxygen and increased the overall yield of farmed fish. Generally, 10 to 30 tails of carnivorous fish can be nested on the water surface per acre. In the case of no additional feeding, about 10 kg of high-quality fish can be obtained, and the output value per acre of water can increase by 150 to 200 yuan. It is worth noting that, in order to ensure the safety of the main cultured fish, the specifications for the feeding of carnivorous fish are smaller than those for the storage of the main fish.
2. Appropriate breeding of some seasonal aquaculture species. In summer, some hot-water fishes (such as tilapia and freshwater whitefish) and shrimps (such as Macrobrachium rosenbergii and Penaeus vannamei) can be farmed. These varieties have good meat quality and are popular with consumers in the market. At the same time, these fish have a high hook rate and good economic returns when they are used as fishing targets. The above-mentioned aquaculture species do not require high aquaculture conditions, and they can be either monocultured or polycultured. The culture period is short and the effect is quick.
3. Reasonable polyculture. That is, aquaculture species such as clams, turtles, river crabs, green prawns, bullfrogs, and American frogs are polycultured with fish. Both fish-based and aquaculture species such as clams, crabs and shrimps can be used. We can use the differences in the environment and living habits of the two species, and make full use of limited water resources to increase the economic benefits of a unit surface.
4. Develop "small breeds" and make great articles. Such aquaculture species as loach and astragalus have long been considered as “small breedsâ€, and they have small specifications and low yields. Nowadays, these small varieties are gradually favored by consumers because of their delicious taste and rich nutrition. The market price has been relatively stable over the years. For example, we can buy small-sized yellow cockroaches and loach in the spring to raise them. After several months of careful farming, we can not only achieve larger specifications in the second half of the year, but also have higher market prices.
5. Implement ecological farming and reduce production costs. In economically underdeveloped areas, we can draw on the eco-culture modes such as polyculture of fishes and ducks, and the combination of fish and fish breeding to reduce operational risks.
6. Grass fish farming, reduce costs. The market price of grass carp is much higher than that of carp. Grass carp has the advantages of fast growth, easy to solve feed, etc. It is a shortcut to make use of leisurely development of grass growing fish. However, grass carp farming must be well-prevented. When stocking, grass carp hemorrhagic disease vaccine should be injected.
After the experimental analysis, the nutrition ingredient of dried goji berry is listed as follows (every 98g as one Unit).The research indicated that Ningxia goji berry is rich of LBP, β-carotene, amino acid and a variety of nutrition ingredient besides the above table mentioned.
|
Heat Quantity 258kCal |
Dietary Fiber 16.9g |
Niacin 4mg |
Ca 60 mg |
Se 13.25mcg |
|
Protein 13.9g |
Vitamin A 1625mcg |
Vitamin C 48mg |
Mg 96mg |
Mn 0.87mg |
|
Fat 1.5g |
Vitamin B1 0.35mg |
Vitamin E 1.86mg |
Fe 5.4mg |
P 209mg |
|
Carbohydrate 47.2g |
Vitamin B2 0.46mg |
K 434mg |
Zn 1.48mg |
Na 252.1mg |
Conventional Goji Berry,Normal Goji Berry,Conventional Dried Goji Berries,Conventional Wolfberry
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