Plant‐derived products have been suggested to partially replace fishmeal in aquafeed; however, often at decreased growth performance, inflammatory responses, and increased susceptibility to diseases. This study assessed the effects of the commercial phytogenic feed additive Digestarom PEP MGE on the growth, nutritional performance, and immune response of L. vannamei. Juvenile shrimp (N = 540) were stocked in 36 tanks (V = 100 L) for 63 days and fed one of the four experimental diets: (i) standard formulation (control, 24% fishmeal), (ii) low fishmeal diet (5%), (iii) low fishmeal diet plus 0.2 g/kg Digestarom PEP MGE, and (iv) low fishmeal diet plus 0.4 g/kg Digestarom PEP MGE. The results obtained after 63 days of feed supplementation suggest that the blend of essential oils tested compensated for the negative performance and health consequences of the low fishmeal diet. Particularly, the survival, FCR, total hemocyte count, and respiratory burst of the shrimp fed a low fishmeal diet supplemented with this phytogenic improved up to the levels recorded for shrimp fed a high fishmeal diet. Overall, results suggest that Digestarom PEP MGE can be incorporated into shrimp low fishmeal diets to compensate for the negative performance and immunological effects of partially replacing fishmeal with plant‐based protein.

中文翻译：

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植物性饲料添加剂对饲喂低鱼粉饲料的太平洋白腿虾对虾凡纳滨对虾的生长性能和免疫力的影响

有人建议将植物来源的产品部分替代水产饲料中的鱼粉。然而，通常表现为生长性能下降，炎症反应和对疾病的易感性增加。这项研究评估了商用植物饲料添加剂Digestarom PEP MGE对南美白对虾生长，营养性能和免疫反应的影响。将幼虾（N = 540）放到36个水箱中（V= 100升），持续63天，并喂食四种实验饮食之一：（i）标准配方（对照组，鱼粉为24％），（ii）低鱼粉饮食（5％），（iii）低鱼粉饮食加0.2 g /千克Digestarom PEP MGE，以及（iv）低鱼粉饮食加0.4克/千克Digestarom PEP MGE。补充饲料63天后获得的结果表明，所测试的精油混合物可以弥补低鱼粉饮食对健康和健康的不利影响。尤其是，饲喂低鱼粉日粮并添加了这种植物素的虾，其存活率，FCR，总血细胞计数和呼吸爆发可提高至饲喂高鱼粉日粮的虾所记录的水平。全面的，