Semi-floating and semi-sinking aquatic extruded feed and preparation method thereof

Abstract

The invention relates to the technical field of feed, and provides a semi-floating and semi-sinking aquatic extruded feed and a preparation method thereof. The aquatic extruded feed comprises the following components in parts by weight: 15-18 parts of rapeseed meal, 18-22 parts of rapeseed cake, 5-8 parts of cottonseed meal, 2-5 parts of fish meal, 10-15 parts of soybean meal, 18-25 parts of wheatmiddling and red dog, 15-20 parts of rice oil bran and 2-5 parts of zeolite powder. After the aquatic extruded feed is put into water, according to different proportion of components, a part of the aquatic extruded feed can sink into water or / and a part of the aquatic extruded feed can be suspended in water, while the other part of the aquatic extruded feed floats on the water surface; the feeding needs of aquatic organisms in different layers can be met, the feeding steps are simplified, the feeding costs are saved and the growth of the aquatic organisms is promoted.

Description

【Technical field】 [0001] The embodiments of the present invention relate to the field of feed, in particular to a semi-floating and semi-sinking aquatic extruded feed and a preparation method thereof. 【Background technique】 [0002] Aquatic feed, as the name implies, is feed for aquatic organisms. Its main components are protein, fat, vitamins and minerals. Aquafeed contains important nutrients for the survival of fish and shrimp, and is an important component of the cells, tissues, and organs of aquatic organisms. [0003] In the process of artificial breeding of aquatic organisms, due to the different living characteristics of aquatic organisms, different aquatic organisms will live in different water depths. For example, the cultured fish can be divided into upper, middle and lower layers, silver carp and bighead carp are the upper layer fish , grass carp, bream, etc. are middle-level fish, and carp, crucian carp, etc. are lower-level fish. However, in the prior art, t...

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Problems solved by technology

However, in the prior art, the characteristics of common aquatic feeds are often only aimed at feeding a certain aquatic organism. Therefore, after the aquatic feed is put into the water, it either floats on the water surface or sinks to the bottom of the water. In this way, only the aquatic organisms in the layer where the feed is located The organisms can get the best growth, while the aquatic organisms in other layers will lack nutrient supplements; therefore, if only the same feed is fed in a fish pond with a variety of aquatic organisms in layers, it is obviously not enough. The needs of multi-layered aquatic organisms, and if a variety of feeds are fed, for farmers, the operation is complicated and the feeding cost is higher

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