1, the early survival rate is the key to the success of green "slimming" fish farming. Grass carp should be kept in fish ponds from the seedling stage. When it reaches about 0.75 kg, it should be suspended for a period of time and then moved to a cage in the river, which can greatly improve the survival rate of fish.
2. Hanging culture in the transitional period is not starvation culture, but a change from artificial feed to natural bait. In the case of not feeding any feed, we should also pay attention to cultivating more biological bait in the water body to ensure that fish will not starve to death and their constitution will not become sick due to weakness.
3, green and healthy without drug residues, and fish can use the fluidity of river water to excrete toxins from the body and consume excess fat. At the same time, it is necessary to start feeding grass (like grass) and green bleaching compound feed certified by the state. This process takes two to three years, and then "slimming" the market, so that the meat quality of fish is close to that of wild grass carp.
The fish raised in this culture mode are different from those fed with pure feed, except for the difference in taste and taste, which is also very different internally.
1, fish raised on pure feed are generally fat and strong because of their sufficient feed and rich nutrition, and the fish body fat content is very high. Not only the abdominal cavity and fish intestines are full of fat, but even the fish skin may be a thick layer of fat, not to mention the fish belly. However, because of the full competition in the natural environment, boss Xu's fish are often thin and thin. Due to the lack of food, the body fat content is often very low, and the fat in the intestine and abdominal cavity of fish is less, so the fat on fish is even less.
2. Fish cultured in pure feed, due to the high fat content in feed, will lead to high cholesterol, large gallbladder, much bile and strong color. However, in Boss Xu's breeding mode, due to the late consumption of pure natural food, less food intake, more adequate digestion, lighter defecation color and much lighter fishy smell.