Effect of Dietary Prebiotic Mannan Oligosaccharide (MOS) on Growth Performance, Intestinal Microflora, Body Composition, Haematological and Blood Serum Biochemical Parameters of Rainbow Trout (Oncorhynchus mykiss) Juveniles

Effect of Dietary Prebiotic Mannan Oligosaccharide (MOS) on Growth Performance, Intestinal Microflora, Body Composition, Haematological and Blood Serum Biochemical Parameters of Rainbow Trout (Oncorhynchus mykiss) Juveniles

The present study investigated the effects of prebiotic mannan oligosaccharide (MOS; activeMOS registered ) on the growth performance, intestinal microflora, body composition, haematological and serum biochemical parameters in rainbow trout juvenile (Oncorhynchus mykiss). After acclimation, fish (1....

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Veröffentlicht in:Journal of Fisheries and Aquatic Science 2015-07, Vol.10 (4), p.255-265
Hauptverfasser: Amani Denj, K., Razeghi Ma, M., Akrami, R., Ghobadi, Sh, Jafarpour, S.A., Mirbeygi, S.K.
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Oncorhynchus mykiss
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container_issue 4
container_start_page 255
container_title Journal of Fisheries and Aquatic Science
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creator Amani Denj, K.
Razeghi Ma, M.
Akrami, R.
Ghobadi, Sh
Jafarpour, S.A.
Mirbeygi, S.K.
description The present study investigated the effects of prebiotic mannan oligosaccharide (MOS; activeMOS registered ) on the growth performance, intestinal microflora, body composition, haematological and serum biochemical parameters in rainbow trout juvenile (Oncorhynchus mykiss). After acclimation, fish (1.67 plus or minus 0.006 g) were allocated into 12 tanks (25 fish per tank) and triplicate groups were fed a control diet or diets containing 1, 2.5 and 4.0 g MOS kg super( -1). At the end of trial (60 days), blood samples were collected from caudal vein of 48 apparently healthy fish. Result showed that in level of 1 g MOS kg super( -1) acquired final weight, Body Weight Increase (BWI), Specific Growth Rate (SGR) and Feed Conversion Ratio (FCR) were significantly higher than the other experimental groups (p0.05) intestinal lactic acid bacterial count. By increasing the supplementation level of MOS, the content of crude protein increased (p0.05) but levels of lymphocyte in the group fed 1 g MOS kg super( -1) was significantly higher than other groups (p0.05). The results indicated that dietary administration of mannan oligosaccharide at the level of 1 g kg super( -1) can positively influence the growth performance, intestinal microflora, body composition and some blood parameters of juvenile rainbow trout.
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After acclimation, fish (1.67 plus or minus 0.006 g) were allocated into 12 tanks (25 fish per tank) and triplicate groups were fed a control diet or diets containing 1, 2.5 and 4.0 g MOS kg super( -1). At the end of trial (60 days), blood samples were collected from caudal vein of 48 apparently healthy fish. Result showed that in level of 1 g MOS kg super( -1) acquired final weight, Body Weight Increase (BWI), Specific Growth Rate (SGR) and Feed Conversion Ratio (FCR) were significantly higher than the other experimental groups (p&lt;0.05). The highest and the lowest growth performances were observed in 1 g MOS kg super( -1) and control, respectively. The fish fed with 1 g MOS kg super( -1) had highest but not significant (p&gt;0.05) intestinal lactic acid bacterial count. By increasing the supplementation level of MOS, the content of crude protein increased (p&lt;0.05). The result showed no significant differences in serum enzymes (ALT, AST, ALP) activity, glucose, cholesterol, triglyceride and total protein among treatments (p&gt;0.05) but levels of lymphocyte in the group fed 1 g MOS kg super( -1) was significantly higher than other groups (p&lt;0.05). Also, a non significant elevation of White Blood Cell (WBC), haematocrit, hemoglobin and eosinophil levels was found in the fish fed diet 1.0 g MOS kg super( -1) (p&gt;0.05). 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The result showed no significant differences in serum enzymes (ALT, AST, ALP) activity, glucose, cholesterol, triglyceride and total protein among treatments (p&gt;0.05) but levels of lymphocyte in the group fed 1 g MOS kg super( -1) was significantly higher than other groups (p&lt;0.05). Also, a non significant elevation of White Blood Cell (WBC), haematocrit, hemoglobin and eosinophil levels was found in the fish fed diet 1.0 g MOS kg super( -1) (p&gt;0.05). 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1996-0751
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subjects Oncorhynchus mykiss
title Effect of Dietary Prebiotic Mannan Oligosaccharide (MOS) on Growth Performance, Intestinal Microflora, Body Composition, Haematological and Blood Serum Biochemical Parameters of Rainbow Trout (Oncorhynchus mykiss) Juveniles
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