What are the requirements for compound feed for bighead carp? A detailed explanation of feeding precautions
The bighead carp is a kind of fish. It differs from the crucian carp and the common carp in that its head is relatively large, so most of its nutritional value lies in its head. And we all know that the nutritional value of fish is very rich, and eating fish helps brain development, so it is best for children to eat fish once a week.
What is the bighead carp
The bighead carp (scientific name: Aristichthys nobilis), also called bighead carp, fathead carp, baotou fish, bighead fish, black carp, spotted carp, and also known as male fish. It is a kind of freshwater fish. It has the elegant name of “scavenger of the water”, and is one of the four major Chinese farmed fishes. Its appearance resembles the silver carp, with a laterally compressed body. The head is relatively large and wide, and the mouth is also very wide and slightly upturned. The eyes are positioned relatively low. The bighead carp grows in freshwater lakes, rivers, reservoirs, and ponds. It is mostly distributed in the middle and upper layers of the water. It is a fish species endemic to China. It is widely distributed in China. It is one of the main targets of pond aquaculture and reservoir fisheries, and has relatively high economic value. It can be eaten, and it has the effects on the human body of improving intelligence, enhancing memory, supplementing nutrition, and delaying aging.
Requirements for compound feed for bighead carp
After acclimation, the bighead carp (bighead carp) can consume compound feed. Some researchers dissected the intestine of the bighead carp 0.5 hours after feeding and found that the intestinal fullness was mostly between grades 4 and 5, and the vast majority was artificial compound feed, with only a small part being large zooplankton. When bighead carp is cultured alone or as the main species, compound feed is generally fed to increase the growth rate and yield of the bighead carp. When bighead carp is the main species, it is generally not suitable to stock fish with strong food-grabbing ability such as the common carp and grass carp, while stocking silver carp and crucian carp is relatively better. When the bighead carp is co-cultured with silver carp in various ponds, since the powdered feed fed to other fish is a very good food source for it, powdered feed is generally no longer fed separately.
After acclimation, the bighead carp mainly feeds at the surface layer of the water body, with its head exposed above the water, swimming slowly around the feeding site and actively consuming compound feed, which requires the feed to have relatively good floatability in water. Generally, a pellet feed particle size between 0.3 and 0.8mm is relatively suitable. At present, commercial feed on the market is usually powdered feed. Feed with strong floatability can reach a utilization rate of 90%.
Feeding precautions
Particular attention should be paid to avoiding waste. When feeding by hand, feed in small amounts many times, and slow down the speed of each feeding. Under cage aquaculture, the feed is generally placed in a cloth bag, and the fish are trained to touch the cloth bag, thereby obtaining a sufficient amount of food according to the needs of the fish body. For feeding points in reservoir areas, it is best to choose a place on the upwind side, quiet, and where the water is not too deep, make a basket frame with bamboo, and sprinkle the powdered feed in the center of the frame to feed. When necessary, the powdered feed can also be splashed after adding water, but care should be taken to mix the water evenly.
The value of the bighead carp
1. The edible value of the bighead carp
The brain of the bighead carp contains a kind of fish oil needed by the human body, and fish oil is rich in polyunsaturated fatty acids, which are an essential nutrient for the human body and can play a role in maintaining, improving, and enhancing brain function. The meat below the gills is transparent and gelatinous, with sufficient moisture, and is rich in collagen, which can fight human aging and repair body cell tissues.
2. The nutritional value of the bighead carp
The bighead carp belongs to fish that are high in protein, low in fat, and low in cholesterol. Every 100 grams of bighead carp contains 15.3 grams of protein and 0.9 grams of fat. In addition, the bighead carp also contains nutrients such as vitamin B2, vitamin C, calcium, phosphorus, and iron. The bighead carp has a protective effect on the cardiovascular system. It is rich in phospholipids and pituitrin, which improves memory, and especially has a very high content in the brain marrow. Regular consumption can warm the stomach, relieve dizziness, benefit intelligence, aid memory, delay aging, and moisturize the skin.
In the aquaculture process of the bighead carp, if you want to obtain high-quality bighead carp and high yield, then feed is indispensable, but there are still many places that need attention during the feeding process, so mastering some feeding methods and techniques for feed is also very helpful for increasing fish yield.