Asadi Tayyebeh, Meshkini Saeid, Ahmadifard Nasrollah
Department of Fisheries, Faculty of Natural Resources, Urmia University, Urmia, Iran.
Department of Food Hygiene and Quality Control, Faculty of Veterinary Medicine, Urmia University, Urmia, Iran.
Vet Res Forum. 2023;14(7):359-365. doi: 10.30466/vrf.2023.1972329.3678. Epub 2023 Jun 15.
The role of immunostimulants in reducing diseases and enhancing fish performance has been proven in various studies. In this study, the effects of antioxidant procyanidin and commercial probiotic Bio-Aqua on some hematological and immune indices of rainbow trout () were investigated. A total number of 525 fingerlings in seven treatments (each treatment in triplicates) with experimental diets, including (1) commercial food without supplements (CTL), (2) 400 mg procyanidin kg feed (PC400) , (3) 800 mg procyanidin kg feed (PC800), (4) 0.50% probiotic diet (PB0.5), (5) 1.00% probiotic diet (PB1), (6) probiotic and procianidin 0.50% and 800 mg kg feed, respectively (PB0.5 + PC800) and (7) probiotic and procianidin 1.00% and 400 mg kg feed, respectively, (PB1 + PC400) were fed for eight weeks. The results showed that the use of procyanidin alone did not have any significant effect on blood biochemistry and immune indices. However, the individual use of Bio-Aqua probiotic could affect the hematological and immune indices of fish, except for monocyte, compared to the control and procyanidin treatments. However, the combined use of the supplements improved the hematological and immune indices of fish. It was concluded that the simultaneous dietary administration of procyanidin and probiotic Bio-Aqua could improve the general health of rainbow trout.
免疫刺激剂在减少疾病和提高鱼类性能方面的作用已在各种研究中得到证实。在本研究中，研究了抗氧化剂原花青素和商业益生菌Bio-Aqua对虹鳟鱼某些血液学和免疫指标的影响。将525尾鱼种分为七组处理（每组处理重复三次），投喂实验饲料，包括（1）无添加物的商业饲料（CTL），（2）每千克饲料添加400毫克原花青素（PC400），（3）每千克饲料添加800毫克原花青素（PC800），（4）0.50%益生菌饲料（PB0.5），（5）1.00%益生菌饲料（PB1），（6）分别为0.50%益生菌和800毫克/千克饲料的原花青素（PB0.5 + PC800），以及（7）分别为1.00%益生菌和400毫克/千克饲料的原花青素（PB1 + PC400），持续投喂八周。结果表明，单独使用原花青素对血液生化和免疫指标没有显著影响。然而，与对照和原花青素处理相比，单独使用Bio-Aqua益生菌会影响鱼类的血液学和免疫指标，但单核细胞除外。然而，补充剂的联合使用改善了鱼类的血液学和免疫指标。得出的结论是，同时在饲料中添加原花青素和益生菌Bio-Aqua可以改善虹鳟鱼的整体健康状况。
