Hwang Dooseon, Lim Chae-Hwan, Lee Seung Hun, Goo Tae-Won, Yun Eun-Young
Department of Integrative Biological Sciences and Industry, Sejong University, Seoul 05006, Korea.
Department of Biochemistry, School of Medicine, Dongguk University, Gyeongju 38066, Korea.
Insects. 2021 Sep 7;12(9):801. doi: 10.3390/insects12090801.
We investigated the effects of a feed containing larvae injected with bacteria on the growth and immunity of . The feed was prepared by replacing fishmeal in feed with 25 and 50% nonimmunized (HIL25, HIL50) or immunized HIL (ImHIL25, ImHIL50), and its protein:fat:carbohydrate ratio was 45:15:18. ImHIL extracts showed inhibitory activity against fish pathogenic bacteria. Both red blood cell count and insulin-like growth factor-1 as the growth indicator were the highest among the groups at week 6 after feeding in the ImHIL50 group. As immune indicators, blood aspartate aminotransferase levels were lower in the ImHIL25 and ImHIL50 groups than in that of other groups at week 6 after feeding, and lysozyme content was significantly higher in ImHIL25 and ImHIL50. The above results demonstrate that ImHIL has a beneficial effect on the improvement of growth and immunity. Accordingly, we suggest that ImHIL has the potential to be a good feed source in aquaculture.
我们研究了含有注射细菌幼虫的饲料对[具体对象]生长和免疫力的影响。该饲料是通过用25%和50%未免疫的（HIL25、HIL50）或免疫的HIL（ImHIL25、ImHIL50）替代饲料中的鱼粉制备而成，其蛋白质:脂肪:碳水化合物比例为45:15:18。ImHIL提取物对鱼类病原菌显示出抑制活性。作为生长指标的红细胞计数和胰岛素样生长因子-1在ImHIL50组投喂6周后均为各组中最高。作为免疫指标，投喂6周后，ImHIL25组和ImHIL50组的血液天冬氨酸转氨酶水平低于其他组，且ImHIL25组和ImHIL50组的溶菌酶含量显著更高。上述结果表明，ImHIL对生长和免疫力的改善具有有益作用。因此，我们认为ImHIL有潜力成为水产养殖中的优质饲料来源。
