It is the most widely used and best effective animal protein. Including imported and domestic fish meal. Imported fishmeal mainly comes from Chile, Peru and Japan. China's fish meal industry started late, mostly small-scale production, with little output. Because of backward production technology, the quality is unstable. In recent years, diets with low fish meal and diets without fish meal have been developed, and fish meal has been replaced by vegetable protein or other animal protein. It should be acknowledged that fish meal is still an important protein source so far. Matters needing attention when using fishmeal: Adulteration: The phenomenon of adulteration in fishmeal is serious, such as mixing urea, laterite and cake. Therefore, it should be tested when conditions permit, and the imported fish meal must be guaranteed in specifications and marked with the name of the fish meal. Beware of poisoning caused by mixing urea. Salt content: The allowable amount of salt in fish meal varies from country to country, but the low content is the top grade, and the production technology of fish meal in China is backward, resulting in high salt content and salt poisoning. Therefore, the detection of salt content should be listed as one of the quality standards of fish meal.

The salt content in the powder should not be too high, and the allowable values are different. Japan sets the export of fish meal below 3%, and the United States stipulates that it is above 3% and below 7%. The salt content of fishmeal produced in China is too high, and some even reach 30%, so this kind of fishmeal cannot be used as feed. Too much salt in the diet will lead to salt poisoning, and chickens are the most sensitive. Molding problem: Fish meal is polluted or breeds pathogenic bacteria, molds and harmful microorganisms due to unqualified processing or preservation conditions, and should also be inspected. Rancidity problem: When the fat content of fish meal is high or stored improperly, the unsaturated fat contained in it is easily oxidized to produce aldehydes, ketones, acids and other substances, which leads to mildew and corruption, so it should also be tested to ensure the quality. The nutritional value of fish meal varies greatly with fish species, processing methods and storage conditions. Fish meal widely used in China refers to pure fish meal made from whole fish without impurities.

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