نوع مقاله : مقاله پژوهشی
1 دانشگاه گیلان
2 گروه شیلات، دانشکده منابع طبیعی، دانشگاه گیلان
3 هیئت علمی گروه شیلات، دانشکده منابع طبیعی، دانشگاه گیلان، صومعه سرا، ایران
4 معاون پژوهش و فناوری موسسه تحقیقات بین المللی تاسماهیان دریای خزر
5 هیات علمی- گروه شیلات، دانشگاه آزاد اسلامی، لاهیجان
عنوان مقاله [English]
This study was conducted to evaluate the effect of replacing fishmeal with fermented soybean meal on some hematological and immunological indices of Beluga (Huso huso). For this purpose, 240 Beluga (394.6 ± 4.3 g) were distributed in eight treatments (three replictions) at International Sturgeon Research Institute (Chabaksar) in autumn 2021. The experimintal diets include 1 (FM), 2 (FM+methionine and lysine), 3 (FSBM40), 4 (FSBM60), 5 (FSBM80), 6 (FSBM40+methionine and lysine), 7 (FSBM60+methionine and lysine) and 8 (FSBM80+methionine and lysine). During the 56-day feeding period, the fish were fed to apparent satiation three times daily. The results showed that there was no significant differenc in hemoglobin, hematocrit, MCHC, neutrophil, monocyte and eosinophil values (p>0.05). However, the highest number of white blood cells and red blood cells was observed in the diets containing FM and FM+methionine and lysine, respectively (p<0.05). Furthermore, the higher amounts of MCV and lymphocytes in the diet containing FSBM40+methionine and lysine and the higher amounts of MCH in the diets containing FSBM80, FSBM40+methionine and lysine and FSBM80+methionine and lysine were observed than the other diets (p<0.05). Also, the highest amounts of lysozyme were observed in the diet containing FSBM60. The diets containing FSBM60 and FSBM60+methionine and lysine had higher amounts of IgM and total immunoglobulin than others (p<0.05). Based on the results, it can be said the best performance of hematological and immunological indices was observed in replacing 40-60% fishmeal with fermented soybean meal.