Method for artificially culturing low-fat crucian carp

The invention relates to a method for artificially culturing low-fat crucian carps. A prior culture method can easily causes the crucian carps to have fatty liver, therefore, according to the method,when the weights of the crucian carps reach about 0.3 kg, one or two dog fish which wear special speed-limiting fish coats are put into a crucian fish culture pond, so that the crucian carps are chased and preyed, the crucian carps are forced to swim intensively, and the fatty liver is prevented from being formed. According to the design, on one hand, the crucian carps have sufficient bait and grow fast in an artificial breeding environment, on the other hand, the crucian carps are chased by the dog fish, the activity amount is large, the fatty liver is not easy to generate, the special speed-limiting fish coats are worn on the dog fish, the flexibility and concealment of the dog fish are objectively reduced, the crucian carps cannot be over-preyed, so that the obtained crucian crops growquickly, have healthy phys