Beneficial effects of killed Tsukamurella inchonensis on rainbow trout (Oncorhynchus mykiss) growth, intestinal histology, immunological, and biochemical parameters

Present study was conducted to investigate the effects of heat-killed Tsukamurella inchonensis on growth performance, gastrointestinal structure, immune response, and biochemical parameters in rainbow trout. Fish (mean weight 25 g) were fed basal diet (control), diets containing 2.48 × 10 8 colony-f...

Full description

Saved in:

Bibliographic Details
Published in:	Fish physiology and biochemistry Vol. 45; no. 1; pp. 209 - 217
Main Authors:	Nofouzi, Katayoon, Sheikhzadeh, Najmeh, Varshoie, Hossein, Sharabyani, Sona Khadir, Jafarnezhad, Mehran, Shabanzadeh, Sadigheh, Ahmadifar, Ehsan, Stanford, John, Shahbazfar, Amir Ali
Format:	Journal Article
Language:	English
Published:	Dordrecht Springer Netherlands 01-02-2019 Springer Nature B.V
Subjects:	Actinobacteria Alanine Alanine transaminase Alkaline phosphatase Animal Anatomy Animal Biochemistry Animal Feed - analysis Animal Nutritional Physiological Phenomena Animal Physiology Animals Aquaculture Aspartate aminotransferase Biomedical and Life Sciences Cecum Cholesterol Colonies Control Defence mechanisms Diet Diet - veterinary Dosage Feeding Fish Forming Freshwater & Marine Ecology Freshwater fishes Growth Heat Hemagglutination Histology Immune response Immune system Immunity Immunology Intestine Intestines - physiology Life Sciences Lipid peroxidation Lipids Morphology Oncorhynchus mykiss Oncorhynchus mykiss - physiology Parameters Peroxidation Phosphatase Salmon Serum Trout Uric acid Villus Weight Zoology Immunological parameters Intestinal histology Growth performance Rainbow trout Tsukamurella inchonensis
Online Access:	Get full text
Tags:	Add Tag No Tags, Be the first to tag this record!

Description
Summary:	Present study was conducted to investigate the effects of heat-killed Tsukamurella inchonensis on growth performance, gastrointestinal structure, immune response, and biochemical parameters in rainbow trout. Fish (mean weight 25 g) were fed basal diet (control), diets containing 2.48 × 10 8 colony-forming units (low-dose group) or 1.24 × 10 9 colony-forming units (high-dose group) of heat-killed Tsukamurella inchonensis per 1 kg of feed for 90 days. Results showed that growth performance was significantly enhanced in both treatment groups compared to the control group. The intestinal villus length and pyloric cecal fold length were mainly enhanced in the high-dose group. On the other hand, higher goblet cell percentage was shown with administration of dead Tsukamurella inchonensis in both treatment groups. Immune parameters such as alternative complement activity, immunoglobulin level, and hemagglutination titer were significantly higher in treatment groups than in fish fed in the control diet. Meanwhile, feeding heat-killed Tsukamurella inchonensis especially at higher dose caused a decrease in the levels of total cholesterol, uric acid, and lipid peroxidation product whereas no significant changes were noted in serum-specific marker enzymes levels, namely alanine aminotransferase (ALT), alkaline phosphatase (ALP), and aspartate aminotransferase (AST) by feeding both treatment diets compared to the control group. This study suggests that heat-killed Tsukamurella inchonensis especially at 1.24 × 10 9 colony-forming units had more potential to enhance growth, immunological parameters, and intestinal structure in rainbow trout.
Bibliography:	ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23
ISSN:	0920-1742 1573-5168
DOI:	10.1007/s10695-018-0555-4