Dietary Supplements to Support Dairy Calf Health and Welfare

dc.contributor.advisorDeVries, Trevor
dc.contributor.authorMcNeil, Brooke
dc.date.accessioned2023-01-12T14:54:17Z
dc.date.available2023-01-12T14:54:17Z
dc.date.copyrightJan-23
dc.date.created2023-01-09
dc.degree.departmentDepartment of Animal Biosciencesen_US
dc.degree.departmentCampbell Centre for the Study of Animal Welfareen_US
dc.degree.grantorUniversity of Guelphen
dc.degree.nameMaster of Scienceen_US
dc.degree.programmeAnimal Biosciencesen_US
dc.description.abstractThe objective of this dissertation was to investigate if dietary supplements could improve dairy calf health and welfare. The first study was focused on investigating the effects of Echinacea purpurea (EP) supplementation on markers of immunity, health, feed intake, and growth of dairy calves. Overall, EP supplementation was associated with blood markers indicative of reduced inflammation and stimulated immunity, with minor benefits to health and growth. The second study was focused on how weaning, as well as supplementing calves with tyndallized Lactobacillus helveticus (TLH), affects behavioral and physiological indicators of dairy calf affective state. Overall, there were changes in the behavior of calves at weaning that were indicative of a more negative affective state. Supplementation of TLH was associated with indicators of a more negative affective state, especially during weaning. In summary, this research provides novel information on the effects of dietary supplements on dairy calf health and welfare.en_US
dc.description.sponsorshipOntario Agri-Food Innovation Alliance
dc.description.sponsorshipOntario Ministry of Agriculture, Food and Rural Affairs
dc.description.sponsorshipMapleview Agri Ltd.
dc.description.sponsorshipNatural Sciences and Engineering Research Council of Canada
dc.description.sponsorshipLallemand
dc.identifier.urihttps://hdl.handle.net/10214/27425
dc.language.isoenen_US
dc.publisherUniversity of Guelphen
dc.rights.licenseAll items in the Atrium are protected by copyright with all rights reserved unless otherwise indicated.
dc.subjectfeed additiveen_US
dc.subjectEchinacea purpureaen_US
dc.subjectLactobacillus helveticusen_US
dc.subjectgut-brain axisen_US
dc.subjectaffective stateen_US
dc.subjectpostbioticsen_US
dc.subjectmedicinal herben_US
dc.subjectweaningen_US
dc.subjectphytotherapyen_US
dc.subjectbehavioren_US
dc.titleDietary Supplements to Support Dairy Calf Health and Welfareen_US
dc.typeThesisen

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