First, more fresh fodder feed: Fresh grass nutritious, less cellulose, grass carp like eating, easy to digest, can make grass carp grow faster, less sick, can reduce the amount of feeding, reduce the cost of farming, improve economic efficiency. Therefore, fresh fodder should be used as far as possible to feed grass carp. The type of forage material should be long-leaved young tender grasses with parallel veins. It is not appropriate to feed grassy fish with an anorexia-like web of veins. It is better to feed rye grass, Sudan grass, etc., and collect wild young tender grass. We must also observe grass carp eating. Grasses that prefer eating should be fed more to meet the needs of grass carp growth and development; anorectic fodder should not be fed or fed as little as possible.
Second, reduce the feeding of aquatic plants: According to the expert test of aquatic products, grass carp eat 15 kilograms of terrestrial plants, you can grow 1 kilogram of meat; and eat aquatic grass, you need to eat 60 to 80 kilograms in order to grow 1 kilogram of meat. Therefore, in the case of insufficient aquatic aquatic plants, little or no aquatic plants can be fed.
Third, according to the different sizes of fish mouth feed different fodder: grass carp in the juvenile period mouth is small, can not be fed thick, hard fodder, should vote in saliva, duckweed, etc., or the fresh long-leaf grass side broken Feeding. Later, as the fish age gradually increases, the fish's beak also increases, and the transition to feeding conventional fresh grass can be achieved.
Fourth, the feeding method should be appropriate: the grass carp fed grass, every day to regular, adequate, uniform feeding, and strive to withdraw the forage, let the fish eat, eat well, eat uniform, in order to improve the breeding effect. According to the weather, water quality and fish activity, etc., the amount of feed should be adjusted to meet the needs of fish for forage. Strictly prohibit the feeding of forages that have been stored for too long and deteriorated and prevent the fish from becoming infected.
Intermediates in organic synthesis refer to molecules that have not yet been fully integrated into the desired molecules in organic chemical synthesis. They are only an intermediate state of the molecule. They may be either an ionic group or a relatively stable macromolecule with an external non-electric property. After being synthesized, it can become a stable compound. In short, Organic Intermediates are intermediates used in chemical synthesis, including alcohols, phenols, benzene, alkenes, ketones, amines, anhydrides and so on. Organic intermediates can be used as Pharmaceutical Intermediates, dye intermediates and Material Intermediates. Organic intermediates are mainly used in the development of organic synthetic chemical products, especially in medicine, pesticides, dyes, organic pigments, photosensitive materials and so on.
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