The use of bad residues to feed fish is nutrient-rich, low-cost, and cost-effective. It is worth advocating promotion, but usage should be paid attention to.
1. Distillers grains are a byproduct of the wine industry. The nutritional value varies according to the raw materials, and is superior to breweries. The distiller's grains have a rich aroma and can attract fish and increase appetite. Distiller's grains can also be used to cultivate water, water quality fertilizer and stability. However, the amount should not be too much (should be controlled below 15% of the total amount of fish feed) to prevent the lack of oxygen in the water, cause the fish to float, or pan the pool to death.
2. Soy sauce grains contain a small amount of salt and must be mixed and fed with other feeds, which should account for about 10% of the total amount of feed.
3. Starch starch The main raw materials are mung bean, broad bean and corn. The fresh starch residue has more water content and higher nutritional value and can be directly used for feeding fish. Dry corn residue after pressing, containing about 22% of digestible protein, is a good concentrate for fish.
4. The bean curd residue is the main byproduct of the soybean product factory. When it is fresh, it contains 8.2% of water, 2%~5% of protein, and less crude fiber, which can be used as auxiliary feed for fish.
5. Beet Residues Fresh beet pulp is nutritious, slightly sweet, and the fish loves to eat. It works well for feeding fish.
6. Bagasse contains a large amount of cellulose and less protein, but after fermentation, it can also be mixed with the feed to feed the fish.
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