Research Article: Effects of diet supplementation with different level of Celmanax® (Saccharomyces cerevisiae cell wall with Mannan-Oligosaccharides) on health, environmental stress and Yersiniosis in Oncorhynchus mykiss
Publish Year: 1400
نوع سند: مقاله ژورنالی
زبان: English
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شناسه ملی سند علمی:
JR_IJAAH-7-2_005
تاریخ نمایه سازی: 24 بهمن 1400
Abstract:
This study aimed to investigate the effects of complementary rainbow trout diets with different concentrations of Celmanax® (active compounds of Saccharomyces cerevisiae with mannan-oligosaccharide (MOS)) on immune responses, pressure resistance and resistance to Yersiniosis. Rainbow trout were fed with a diet containing various concentration levels of S.cerevisiae with MOS (prebiotic) (۰, ۰.۱, ۰.۵ and ۱%) for ۶۰ days. While evaluating some of the parameters of the immune system, the blood samples were prepared from the tuber stem vein every ۳۰ days. On day sixty of the study, various stress tests including temperature increases, hypoxia and induction of experimental disease with Yersinia ruckeri were also performed in all the experimental groups. Results showed that lysozyme activity, alternative complement pathway and total antibody were significantly elevated by diets containing different concentrations of prebiotic and the effective supplementation diet concentration was found to be ۰.۱% (p<۰.۰۵). However, the results of environmental pressures and exposure to bacteria showed that rainbow trout resistance was increased with different concentrations of prebiotic and the effective supplementation diet concentration was also ۰.۱% (p<۰.۰۵). Based on these findings, it is suggested that to increase and enhance immunity and improve rainbow trout resistance, it would be appropriate to add ۰.۱% concentration of prebiotic in the diet.
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Authors
A Khodadadi
Department of Health, Aquatic Animal Health and Disease, Faculty of Specialized Veterinary Science, Science and Research Branch, Islamic Azad University, Tehran, Iran. Aquatic Animals Health and Control of Diseases, Iran Veterinary Organization, Iran
H Malekinejad
Department of Pharmacology and Toxicology, Faculty of Pharmacy, Urmia University of Medical Sciences, Urmia, Iran. Food and Beverages Safety Research Center, Urmia University of Medical Sciences, Urmia, Iran.
M. S Hosseini
Department of Veterinary, Faculty of Veterinary Medicine, Razi University, Kermanshah, Iran.
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