Can money slate be farmed artificially
The yellow-lipped fish, also known as money slate (min), belongs to the Perciformes family, offshore warm-temperate rare demersal fish, inhabiting the offshore water depth of 50-60 meters in the sea area, for carnivorous fish, to small fish and shrimp, crabs, and other large crustaceans for food.
The yellow-lipped fish is a national second-class protected aquatic animals, only distributed in China's East China Sea and the South China Sea waters, the main producing areas in Guangdong and Fujian coast, is China's endemic fish species.
Experts introduced, the mouth of the Minjiang River was once a breeding ground for yellow-lipped fish. In recent years, due to the scarcity of the number, coupled with the intensification of fishing along the coast, the yellow-lipped fish is on the verge of extinction. At present, the coast of Fujian can be seen every year only five or six, generally up to more than 50 kilograms, more than a meter long. Yellow-lipped fish are all wild, there is no breeding.
"Twenty or thirty years ago, our side is often visible yellow-lipped fish, a catty is just a few cents, there is not much people are willing to buy, time has changed, now a catty soared to tens of thousands of dollars, and can not even see." Huangqi local villagers said.
Experts say, things are rare is expensive, it is because the big yellow-lipped fish is less and less, and its medicinal value is more and more recognized, the price soared.
The yellow-lipped fish of the whole artificial culture technology, the invention includes the selection of breeding conditions, artificial rearing methods, fish disease control, etc., where the breeding conditions are selected in the fish ponds constructed with deep water and flowing waters, the deepest part of the body of water 3 to 4 meters, deep-water portion of the breeding pond area of 25% to 40%, the breeding of the water quality salinity is maintained at 4 ‰ to 18 ‰ between, pH value of 6. 8 to 8 between, the pond with a bottom tube oxygenation and the water body of the deep-water part of the culture of 25% to 40%. The pond is equipped with bottom tube oxygenation and upper water car oxygenation, long-term maintenance of dissolved oxygen in the pond water up to 5 mg or more, through the above research, to find out a set of practical yellow-lipped fish artificial aquaculture technology, to fill the gaps at home and abroad, the protection of China's second-class protected animals yellow-lipped fish has a role in promoting.
Why is the yellow-lipped fish difficult to breed
The yellow-lipped fish lives in the bottom of the sea below 30 meters, carnivorous, body length up to 1.80m, weight up to 100 kg.
Distribution in ---- Fujian, Guangdong coast.
But the heavy fishing in recent years has basically reached a state of imminent extinction, so the price of yellow-lipped fish soared to nearly 20,000 yuan 500 grams. It is difficult for a professional fishing fleet to meet 5 yellow-lipped fish in a year.
Problems of artificial breeding:
1. Fry are hard to find.
2. Limited space for nets.
This fish lives in the depth of 40-80 meters, and on the water quality, water area requirements are high, artificial breeding is almost impossible, unless it can be a kilogram for a kilogram of gold almost!
Fish fry are not easy to find.
Yellow-lipped fish culture technology
Yellow-lipped fish all artificial culture technology, characterized by: including the choice of breeding conditions, artificial feeding methods, fish disease prevention and control; which, the choice of breeding conditions in the fish ponds constructed in the deep-water areas and flowing waters, the deepest body of water 3 to 4 meters, deep-water portion of the area of the breeding ponds accounted for 25% to 40% of the salinity of the culture of the water quality is maintained at 4 ‰ ~ 18 ‰ between, pH value of the water quality is maintained at 4 ‰ ~ 18 ‰ between, the water quality is maintained at 4 ‰ ~ 18 ‰ between, the water quality is maintained at 4 ‰ ~ 18 ‰ between. 18 ‰, pH value of 6. 8 ~ 8 between the pond is equipped with bottom tube oxygenation and the upper water car oxygenation, long-term maintenance of dissolved oxygen in the pond water up to 5 mg or more; which, artificial feeding methods, feeding feed for live bait and fresh fish slurry; first of all, with the South American white shrimp enticement, and then with the soft fish of the live fish, through the artificial cut off the tail, fins, and then cast into the pond to do the live bait and feeding of fresh fish slurry, so that the fish slowly accustomed to and adapted to; The amount of feed fed per day is 2% to 4% of the body weight of the yellow-lipped fish, of which the yellow-lipped fish weighing less than 250g are fed live bait every day accounting for 70% to 80% of the total feeding, and the fresh fish paste accounts for 20% to 30% of the total feeding, and all of the yellow-lipped fish weighing more than 250g are fed fresh fish paste. Among them, fish disease control includes the following three measures: first, regular medication to prevent the occurrence of rotifers, the second is the appropriate amount of feed to avoid excessive feed caused by pond water pollution, and third, in the fish ponds surrounded by the seaside, the introduction of fresh seawater often.