نوع مقاله : مقاله کامل علمی - پژوهشی
نویسندگان
1 دانشگاه علوم کشاورزی و منابع طبیعی اصفهان
2 دانشگاه علوم کشاورزی و منابع طبیعی گرگان
3 موسسه تحقیقات علوم شیلاتی کشور
چکیده
کلیدواژهها
موضوعات
عنوان مقاله [English]
نویسندگان [English]
The use of immune stimulants such as probiotics improves the physiological condition of fish. The aim of this study was to investigate the effect of different levels of prebiotic fructooligosaccharides on the immune parameters of rainbow trout serum and mucus. For this purpose, a number of 120 tilapia fry for 42 days in 4 experimental groups (each group contains 10 fish) with 3 repetitions including: treatment (1) control, without fructolycosaccharide prebiotic, treatment (2) food containing 0.05 treatment ( 3) food containing 0.1% and treatment (4) food containing 0.2% prebiotic were divided. After the end of the feeding period, biochemical indices of fish serum and mucus were evaluated at different levels. The serum immune indices in the treatments fed with probiotics on day 40 were significantly different from the control group (P<0.05). The results of statistical analysis showed that the use of fructo-lycosaccharide had a positive effect on serum immunity indicators and among serum immunity indicators, AST enzyme level, albumin, glucose and total protein showed better effects. Experimental treatments had a significant effect on alkaline phosphatase, lysozyme enzyme, soluble protein and mucus immunoglobulin (p < 0.05), so that the amount of alkaline phosphatase, lysozyme enzyme and soluble mucus protein due to treatments fed with prebiotics and with increasing prebiotic concentration, It increased significantly, but the amount of mucus immunoglobulin decreased due to treatments fed with prebiotic and with increasing its concentration. The general conclusion of this study shows that the level of 0.2% fructolicosaccharide prebiotic on the 40th day can partially strengthen the skin mucus indices and the serum indices of rainbow trout and it was found that the addition of prebiotics to the diet It has a significant effect and strengthens the immune system.
کلیدواژهها [English]
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