Ideal profile of dietary essential amino acids for pacu (Piaractus mesopotamicus) juveniles by deletion method

Diets with balanced essential amino acid (EAA) proportions improve the feed utilization and reduce the high nitrogen excretion by the animal, minimizing the environmental impacts on the production and increase the profitability of the aquaculture production systems. The deletion method allows the establishment of an ideal relationship among the EAA in a single experiment by using the same diet, environment and fish lot, resulting in a greater uniformity and data consistency. In addition to determining the ideal profile of essential amino acids for pacu, this study may help to consolidate and further improve the deletion method using different aquatic species.

均衡必需氨基酸（EAA）比例的饲料能够优化饲料的利用率，降低动物的高氮排泄，从而最小化对水产养殖生产系统环境的影响，并提高其盈利能力。删除法允许通过使用相同的饲料、环境和鱼群，在单一实验中建立单种实验中必需氨基酸的理想关系，从而实现数据的更高一致性和均匀性。除了确定巴西龟的必需氨基酸理想配比外，本研究还可能有助于巩固并进一步改进使用不同水生物种的删除法。