Distillers grains It is a by-product 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, causing death of fish floating head or pan.
The main raw materials of starch starch are mungbean, 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.
Bean curd residue It is the main by-product 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.
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