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The Effects of Feeding Prebiotics, Antibiotics, and Alternative Proteins during the Preweaning Period to Dairy Calves on Growth, Health, and the Gastrointestinal Microbiota.

紀錄類型:	書目-語言資料,手稿 : Monograph/item
正題名/作者:	The Effects of Feeding Prebiotics, Antibiotics, and Alternative Proteins during the Preweaning Period to Dairy Calves on Growth, Health, and the Gastrointestinal Microbiota./
作者:	Wolfswinkel, Tricia Lee.
面頁冊數:	1 online resource (202 pages)
附註:	Source: Dissertation Abstracts International, Volume: 78-11(E), Section: B.
Contained By:	Dissertation Abstracts International78-11B(E).
標題:	Physiology. -
電子資源:	click for full text (PQDT)
ISBN:	9781369883930

The Effects of Feeding Prebiotics, Antibiotics, and Alternative Proteins during the Preweaning Period to Dairy Calves on Growth, Health, and the Gastrointestinal Microbiota.
Wolfswinkel, Tricia Lee.

The Effects of Feeding Prebiotics, Antibiotics, and Alternative Proteins during the Preweaning Period to Dairy Calves on Growth, Health, and the Gastrointestinal Microbiota. - 1 online resource (202 pages)

Source: Dissertation Abstracts International, Volume: 78-11(E), Section: B.

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

Includes bibliographical references

Maintaining a healthy microbiota in calves leads to less immune disturbances as well as increases feed efficiency for optimal growth and production. Although antibiotics decrease populations of beneficial bacteria, they have been commonly fed to livestock at subtherapeutic levels due to the growth promotion and disease prevention that has been associated with their supplementation. Prebiotics, or non-digestible feed ingredients, have been proposed as feed additives that could accomplish the benefits associated with antibiotics without concerns regarding withdrawal times or the potential for resistance development from pathogenic organisms. Prebiotics help maintain a healthy commensal microbial population in the gastrointestinal tract. There is a very complex relationship between diet, intestinal microbiota, their metabolites, and the host immune system, and the intrinsic immunomodulation induced by different ingredients in the diet that needs to be better understood. Dietary changes affect the commensal microbe populations, but the exact mechanism is not known and has recently it has become a quickly growing area of interest to study. This research represents part of a continuing endeavor to better understand the interactions between the host and the commensal microbiota, as well as ways to affect the bacterial community diversity in a way that improves the health and growth of the animal. It also represents a continuing effort to better understand bioactive feedstuffs and their effects on animals at different ages.

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

Mode of access: World Wide Web

ISBN: 9781369883930Subjects--Topical Terms:

673386
Physiology.
Index Terms--Genre/Form:

554714
Electronic books.

The Effects of Feeding Prebiotics, Antibiotics, and Alternative Proteins during the Preweaning Period to Dairy Calves on Growth, Health, and the Gastrointestinal Microbiota.
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504 $a Includes bibliographical references
520 $a Maintaining a healthy microbiota in calves leads to less immune disturbances as well as increases feed efficiency for optimal growth and production. Although antibiotics decrease populations of beneficial bacteria, they have been commonly fed to livestock at subtherapeutic levels due to the growth promotion and disease prevention that has been associated with their supplementation. Prebiotics, or non-digestible feed ingredients, have been proposed as feed additives that could accomplish the benefits associated with antibiotics without concerns regarding withdrawal times or the potential for resistance development from pathogenic organisms. Prebiotics help maintain a healthy commensal microbial population in the gastrointestinal tract. There is a very complex relationship between diet, intestinal microbiota, their metabolites, and the host immune system, and the intrinsic immunomodulation induced by different ingredients in the diet that needs to be better understood. Dietary changes affect the commensal microbe populations, but the exact mechanism is not known and has recently it has become a quickly growing area of interest to study. This research represents part of a continuing endeavor to better understand the interactions between the host and the commensal microbiota, as well as ways to affect the bacterial community diversity in a way that improves the health and growth of the animal. It also represents a continuing effort to better understand bioactive feedstuffs and their effects on animals at different ages.
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