Feeding fish with residue residue, nutrient-rich, low cost, high efficiency, it is worth promoting, but the usage should be noted.
1. Distillers grains are a by-product of the wine industry. The nutritional value varies from raw material to raw beer. The vinasse is rich in flavor and can attract fish to feed and enhance appetite. The distiller's grains can also be used for water, and the water is fertile and stable. However, the amount should not be too much (should be controlled below 15% of the total amount of fish feed), in order to prevent the lack of oxygen in the water, causing fish floating head, or pan-pool death.
2. Soy sauce grains contain a small amount of salt, which must be mixed with other feeds, and the feed should account for about 10% of the total feed.
3. The main raw materials of starch starch are mung bean, broad bean and corn. Fresh starch slag contains more water and has high nutritional value and can be used directly to feed fish. The dried corn slag after pressing contains about 22% digestible protein and is a good concentrate for fish.
4. Bean curd residue is the main by-product of the soy product factory. When fresh, the water content is 8.2%, the protein content is 2%~5%, and the crude fiber is less. It can be used as auxiliary feed for fish.
5. Beet residue Fresh beet pulp is rich in nutrients, slightly sweet, and the fish is very fond of eating. It is very effective for feeding fish.
6. Bagasse contains a large amount of cellulose and less protein, but after fermentation, it can also be mixed with the concentrate to feed the fish.
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