Tattoo Machine is a hand-held device generally used to create a tattoo, a permanent marking of the skin
with indelible ink. Modern tattoo machines use electromagnetic coils to move an armature bar up and down,
Connected to said armature bar is a barred needle grouping that pushes ink into the skin. Tattoo artists generally
use the term "machine", or even "iron", to refer to their equipment. The word "gun" is often used but many
tattoo professionals dislike it. Then there are the Tattoo machines which are available at the numerous Tattoo
Supplies stores. These are also known as Tattoo Guns. There is a vast selection of stylish tattoo guns which are
made out of Iron, Copper steel and Top carbon steel and they are designed for lines and shading of the intricate
design on the Tattoo. Then you get the Tattoo Needles of different sizes and shapes enclosed in individual
envelopes.They carry nearly everything a tattoo operation demands or even needs as well at truly competitive prices
for quality items.
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Grouper fish farming is mainly concentrated in Asia, and the countries and regions where fish culture is carried out include the Philippines, Indonesia, Malaysia, Thailand, Japan, Mainland China and Taiwan Province. Farming methods include cage culture, pond aquaculture, and proliferation of sea areas; the main breeds include blue grouper, mottled grouper, spotted grouper, red grouper, oblique grouper, and thorny spines. Eel, giant grouper, crocodile (mouse spot), wide forehead (dragon) and so on. In Taiwan Province, the ponds of Penaeus sinensis were properly modified and the cultured grouper was developed. The yield was high, reaching 30 tons per hectare. The production of cagefish cultured grouper in the coastal areas of southern China is generally about 65 kilograms per cubic meter of water.
In 1964, Japan used red-spotted grouper as a target species for proliferation and release, and research and development of seedlings were carried out. The technology is relatively mature. However, in recent years, due to the influence of neuronal viral disease (VNN), the production volume has been unstable. In addition, artificial seedlings are produced with grouper, mottled grouper, and spiny locust.
The main production methods are indoor cement pools. Generally, 500-800 fry can be cultivated for 2.5-3 cm per cubic meter of nursery water, and the best is more than 2400.
Taiwan Province is currently training the most successful spotted grouper (Taiwan called Maraban spot), and the social division of labor is relatively small, the people have to sell fertilized eggs, fry production (2.5-3 cm), fish seed thick (2.5-8 cm ), Cultivation and biological bait, compound feed production professional households. Seedling production methods are mainly based on pond cultivation, with low production costs and good economic returns. In general, about 1.5-1.8 million fry can be cultivated for 2.5 hectares in 1 hectare. In the past two years, burrowing moths have also been cultivated, and wide-fronted oysters have been added, adding new varieties to grouper culture.
In the southern coastal areas of China in the 1980s, artificial seedling production of grouper was started, but due to various reasons, most of them stayed at the laboratory level. In the past two years, the Daya Bay Fisheries Test Center of Guangdong Province has made significant progress in the production of artificial seedlings of red grouper and grouper (commonly known as green spotted), and has begun mass production. In addition, the use of ponds in Hainan Province to cultivate green spotted fry also achieved initial success.
1. Introduction to economic value
Grouper is not only delicious meat, but also very rich nutrition, the price has been more stable, the current price of grouper fish cultured in Guangdong, green spot, sesame spot 120 yuan per kilogram; red grouper, dragonfly per kilogram of 210 About; mouse spot is about 1,000 yuan per kilogram.
2. Overview of aquaculture development
The cultivation of domestic groupers began in the 1980s and mainly concentrated in the coastal provinces of Guangdong, Fujian, Zhejiang, and Hainan. Among them, Guangdong accounted for a large part of the aquaculture production. There are now about 10 species of grouper fish breeding, of which the green spot and sesame spot are the two most cultivated species, while the mouse spot, red spotted grouper, and dragonfly Is a higher price variety. In 1997, there were 110,000 mariculture net cages in Guangdong Province, of which about 20,000 were grouper fish cultured, and the output was about 2,500 tons.
At present, the main method for grouper fish farming in Guangdong is shallow-sea cage culture, and only a small part is cultured in some shrimp ponds. 60% of the cultured seedlings come from domestic natural fishing, 20% are imported from natural seedlings in Southeast Asia, and the other 20% come from artificial propagation seedlings in Taiwan. For the cultured grouper, most of the fish used under the mixed fish, and the compound feed was only in the experimental stage.
Grouper fish farming in Guangdong is mainly based on individual small-scale operations. Group-based large-scale cultured grouper has not yet been developed. The developed grouper is sold to live fish transporters and sold to various local aquaculture markets or restaurants.
Grouper breeding and artificial breeding
Grouped fish (Epinephelus sp.) has a delicious taste and high nutritional value. It is a high quality fish. With the improvement of people’s living standards, their demand is increasing. The groupers currently marketed are farmed (live) and caught and caught (fresh, frozen).