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The Influences of Diet and Water Systems on Rainbow Trout Gut Microbiome in Relation to Nutrient Utilization.

Record Type:	Language materials, manuscript : Monograph/item
Title/Author:	The Influences of Diet and Water Systems on Rainbow Trout Gut Microbiome in Relation to Nutrient Utilization./
Author:	Betiku, Omolola Comfort.
Description:	1 online resource (223 pages)
Notes:	Source: Dissertation Abstracts International, Volume: 79-01(E), Section: B.
Contained By:	Dissertation Abstracts International79-01B(E).
Subject:	Animal sciences. -
Online resource:	click for full text (PQDT)
ISBN:	9780355136623

The Influences of Diet and Water Systems on Rainbow Trout Gut Microbiome in Relation to Nutrient Utilization.
Betiku, Omolola Comfort.

The Influences of Diet and Water Systems on Rainbow Trout Gut Microbiome in Relation to Nutrient Utilization. - 1 online resource (223 pages)

Source: Dissertation Abstracts International, Volume: 79-01(E), Section: B.

Thesis (Ph.D.)--Montana State University, 2017.

Includes bibliographical references

Plant protein ingredients are sustainable sources of protein that could be used to meet the demand of the growing aquaculture industry. However, feeding plant protein diets has some drawbacks in terms of reduced growth and poor feed efficiency. This dissertation evaluated the production cost of alternative protein diets for commercial production of rainbow trout. Also, it identified the microbiota and gene functions associated with alternative diets and how they differ between mid- and hind-gut sections of the rainbow trout intestine. Furthermore, it determined differences in microbial community compositions and functions in the luminal and mucosal GIT of trout when fed alternative diets, with/without prebiotics. Lastly, the significance of diet and water as environmental factors shaping the mucosal and luminal bacterial compositions in trout was investigated.

Electronic reproduction.
Ann Arbor, Mich. :
ProQuest,
2018

Mode of access: World Wide Web

ISBN: 9780355136623Subjects--Topical Terms:

1178863
Animal sciences.
Index Terms--Genre/Form:

554714
Electronic books.

The Influences of Diet and Water Systems on Rainbow Trout Gut Microbiome in Relation to Nutrient Utilization.
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100 1 $a Betiku, Omolola Comfort. $3 1191382
245 1 4 $a The Influences of Diet and Water Systems on Rainbow Trout Gut Microbiome in Relation to Nutrient Utilization.
264 0 $c 2017
300 $a 1 online resource (223 pages)
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500 $a Source: Dissertation Abstracts International, Volume: 79-01(E), Section: B.
500 $a Adviser: Carl J. Yeoman.
502 $a Thesis (Ph.D.)--Montana State University, 2017.
504 $a Includes bibliographical references
520 $a Plant protein ingredients are sustainable sources of protein that could be used to meet the demand of the growing aquaculture industry. However, feeding plant protein diets has some drawbacks in terms of reduced growth and poor feed efficiency. This dissertation evaluated the production cost of alternative protein diets for commercial production of rainbow trout. Also, it identified the microbiota and gene functions associated with alternative diets and how they differ between mid- and hind-gut sections of the rainbow trout intestine. Furthermore, it determined differences in microbial community compositions and functions in the luminal and mucosal GIT of trout when fed alternative diets, with/without prebiotics. Lastly, the significance of diet and water as environmental factors shaping the mucosal and luminal bacterial compositions in trout was investigated.
520 $a Experiment 1 demonstrated that trout growth and body indices were not affected by feeding plant protein diet (PPD). In experiment 2, shotgun metagenomics revealed predominant bacterial population in trout microbiota. Genes related to carbohydrate metabolism were increased in the hindgut intestine of those fed PPD. Experiment 3 demonstrated that replacing fishmeal with 75% GDDY did not alter growth of trout, but not feed intake and feed conversion ratio (FCR). High inclusion of GDDY in trout diet resulted in enrichment of catabolic genes involving branched chain amino acids in trout midgut region. Experiment 4 showed that rearing in a recirculating water system significantly improved trout performance compared to rearing in a flow-through water system, while feed intake and FCR increased in fish raised in the flow-through system. Water samples were more diverse than GIT samples. Bacterial diversity was greater in mucosal scrapings of the GIT than in the lumen. Water system played a major role influencing the microbial communities in trout luminal and mucosal GIT. The lumen shared similar bacteria with the rearing water.
520 $a The results of this study demonstrated that plant protein can effectively substitute for fishmeal in trout diets. It further showed that trout GIT microbiota vary between the mid- and hind-GIT. The hind-, but not the mid-GIT microbiome appears to be modulated by diet, while the mid-GIT is affected by water system.
533 $a Electronic reproduction. $b Ann Arbor, Mich. : $c ProQuest, $d 2018
538 $a Mode of access: World Wide Web
650 4 $a Animal sciences. $3 1178863
650 4 $a Nutrition. $3 581367
655 7 $a Electronic books. $2 local $3 554714
690 $a 0475
690 $a 0570
710 2 $a ProQuest Information and Learning Co. $3 1178819
710 2 $a Montana State University. $b Animal and Range Sciences. $3 1191383
773 0 $t Dissertation Abstracts International $g 79-01B(E).
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=10284459 $z click for full text (PQDT)