Fish’s need for protein is actually the need for amino acids. The ratio between essential amino acids and non-essential amino acids in fish diets is roughly 40%: 60%. Amino acids can promote calcium absorption by fish.
Studies have found that amino acids can also attract fish. Numerous studies have shown that L-amino acids are effective attractants for salmon and trout feeding behaviors. L-amino acids are the main attractants of fish and crustaceans, and different amino acids have different attractant activities on the same species of fish. difference. Some people think that this difference may be related to the difference between different fish’s olfactory and taste sensitivities to certain amino acids, as well as differences in amino acid molecular structure. This difference in olfactory and taste sensitivity may be consistent with the difference in appetite, that is, the different foods have different attractive amino acids.
Among them, L-histidine can improve the disease resistance of aquatic animals in addition to its attracting effect. For example, tryptophan can increase the fish’s monoglobulin content. Because it is not relying on drugs to improve disease resistance, but mainly to strengthen nutrition to improve disease resistance, which has important practical significance for protecting the ecological environment and strengthening green food.
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Post time: Feb-25-2020