How much does leopard coral grouper cost per jin? Introduction to farming methods
The leopard coral grouper is a type of grouper and belongs to a premium fish species, with a delicious taste. However, our government has strictly prohibited people from catching this fish, so the leopard coral grouper has become an even rarer species. At present, the leopard coral grouper on the market comes from imports and a small amount of domestic farming, so roughly how much does the leopard coral grouper cost per jin? How is it farmed?
1. Roughly how much does the leopard coral grouper cost per jin?
Because of the air freight cost of imported live fish and deaths along the way, the price is much higher than that of common groupers. In Hong Kong, China markets, a large sea leopard coral grouper cut open is 7 dollars per liang, and here one jin is 16 liang, so converted to the mainland it is 114 Hong Kong dollars per market jin. Now 1 Hong Kong dollar is about 0.81 renminbi, so converted to renminbi it is about 91 yuan per jin. Grouper is a general term and includes leopard coral grouper and tiger grouper; the leopard coral grouper is one of the better groupers, so its price is also a bit higher. However, imported frozen leopard coral grouper is much lower in price and is not more expensive than other live groupers.
2. How is the leopard coral grouper farmed?
1. Bait feeding: small trash fish and other chilled fresh bait or compound feed can be fed, or the two can be combined, and feeding chilled fresh bait together with compound feed gives better results. When feeding chilled fresh small trash fish and the like, they can be made into fish paste for feeding; when feeding compound feed, it is best to feed once every 2 to 3 hours; when the fish body grows to 5 cm to 10 cm, it can be fed 4 times a day; when feeding chilled fresh small trash fish, the chilled fresh small trash fish can be cut into pieces according to the size of the fish species' mouth; when the fish body grows to more than 150 g, chilled fresh bait can be fed once a day.
2. Water quality management: place one air stone per 1 sq m to 1.5 sq m. Change the water once a day, with about 1/3 of the water changed, and carry out the water change after feeding is completed, using the method of draining while cleaning the dirt and residues on the pool walls, pool bottom, aeration pipes, and air stones. Keep the daily temperature difference within 3 degrees C; when the water temperature is high, increase the amount of water changed, and carry out a full pool water change about every 5 days. Transfer the fish to another pool about every 20 to 30 days, and at the same time carry out screening, raising large and small fish in separate pools, and thoroughly scrub and disinfect the pool before use. In winter, keep the water temperature above 18 degrees C.
3. Selection and separate raising: during the fry and fingerling stage, leopard coral grouper are prone to mutual cannibalism, especially when sizes are uneven, and the mutual cannibalism is severe. Fish should be screened promptly and irregularly according to their growth, keeping the body size of fish in the same farming pool consistent. Generally, stainless steel mesh screens of different specifications are used together with manual methods for screening.
4. Disease prevention and control: during the farming process, it is necessary to prevent parasites such as trichodinids and ichthyophthirius, as well as bacterial diseases such as marine vibrio and Edwardsiella, especially during the fry and fingerling stage. Special attention should be paid to the disinfection and cleaning of the farming environment, keeping the water quality fresh, regularly cleaning the pool walls and pool bottom, and maintaining a clean farming environment; feed fresh bait; regularly and systematically carry out deworming of the fish and freshwater medicinal baths; farming tools are best used for a single pool and disinfected regularly.