"Qiupei" is a broodstock that accumulates fat, promotes gonadal development, and increases the amount of brooding eggs. It provides an important link for laying eggs in the broodstock in the coming year and is extremely important in the whole broodstock breeding. Different breeding methods should be adopted for different broodstocks. (a) grass, blue broodstock. Can be summarized as "big food, flooding, disease prevention." Big food: The water temperature is suitable in autumn, and it is the stage where grass and herring eat in large quantities. Feeding follows the principle of “mainly concentrates, fine and greenâ€. The specific approach is: grass carp feed each day feed concentrate (barley, wheat, soybean cake, full-price feed, etc.) dry weight of about 150 grams, feed green feed 1-2 days a week, the first day of feeding the amount of broodstock 20 % or so. Herring is mainly fed with snails, clams, and oysters, supplemented with bean cakes to ensure that the gonads develop normally. Dashui: As the autumn grasses and blue broodstocks are eating well and are active frequently, they are likely to cause water quality aging. In the event of rainy weather, they may also cause lack of oxygen. Therefore, it is necessary to frequently add new water to keep the pool of water, and if necessary, open the aerators. Increase dissolved oxygen in water, is conducive to grass, blue broodstock gonad development. Disease prevention: Autumn grasses and blue broodstocks are prone to enteritis disease, gill disease and other bacterial diseases, and should be actively prevented. Lime and strong chlorine should be used to disinfect the body of water. Attention should not be paid to rotten moldy feed. (b) é²¢, é³™ broodstock. It can be summarized as "big fertilizer, big water, pest control." Fertilizer: The organic fertilizer is regularly applied. The main cultured carp pond is: 70% human feces + 30% pig manure; the main carp pond: 70% cow manure + 30% human feces. The number and quantity of casts are based on the pond's fatness, changes in the weather, and the activity of the broodstock. The general principle is to keep the water brown and have a transparency of about 20 cm. If necessary, add powdered feed for broodstock to accumulate fat and ensure that the normal development of the gonad needs flooding. In the beginning of autumn, new water is often added. At the end of autumn, fill the pond water to maintain the depth and color of the water. If necessary, open the aerator to prevent the lack of broodstock. Oxygen ponds. Anti-insect: The crickets of crickets and crickets are prone to parasitic diseases such as anchor head lice and fish fleas in the fall, preventing the use of fish and insect repellents, and exterminating kings such as Quanchiposa. (c) Frogfish. When the broodstock brood over the winter for Phase IV eggs, the quantity and quality of the eggs are mainly determined by Qiupei. The “Autumn Pei†for broodstock broodstock must be fed with a large amount of concentrate feed. From the beginning of autumn to the small snow stage, the fish should be fed with 3%-5% of the body weight of the fish. At the same time, it is necessary to prevent hypoxia pans and prevent diseases.
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