The mackerel has a small head and no meat.
The mackerel is a fish in the carp family, Cyprinidae. The body length can reach 145 centimeters. The body length is 3.3 to 4.1 times the height of the body, 3.5 to 4.4 times the head length, the body is stout, nearly cylindrical, the abdomen is round, no abdominal ribs.
The dorsal fin is located above the ventral fin, without hard spines and with a straight outer edge. The body is greenish-gray, darker on the back, grayish-white on the abdomen, and the fins are all black. Individuals are large, up to more than 70 kilograms.
Expanded Information
Reasons for less farmed mackerel:
1, the cycle is too long. This is the main reason, we know that the general culture of mackerel, it takes about three years to become a pond, but the culture of other fish species, such as blackfish, grass carp, etc., as long as three or four months can be out of the pond, raising a pond of mackerel time can be raised in eight or nine ponds of blackfish, grass carp.
2, the cost is big. Want to raise a good mackerel, then you have to regularly provide fresh bait and do a good job of changing water to clear the pond, disinfection and other work. Mackerel farming to be highly profitable, at least to ensure that 10-20 pounds, and mackerel to be raised so large, the cost of about 20,000 yuan per mu.
3, high risk. Mackerel is a carnivorous fish, mainly screw-based diet, if the food is not enough will cause slow growth or even death. In addition to the mackerel breeding cycle is too long, then the input cycle to be large, the higher the risk, so many people will choose to breed less risky blackfish, grass carp.
Baidu Encyclopedia - Mackerel