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Permanent link (DOI): https://doi.org/10.7939/R37D6F

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Evaluation of dried distillers grains with solubles as a partial replacement of barley silage or barley grain in diets for lactating dairy cows Open Access

Descriptions

Other title
Subject/Keyword
DDGS
Barley silage
Barley grain
Type of item
Thesis
Degree grantor
University of Alberta
Author or creator
Zhang, Shuzhi
Supervisor and department
Oba, Masahito (Department of Agricultural, Food and Nutritional Science)
Examining committee member and department
Paszkowski, Cynthia (Department of Biological Science)
Yang, Wenzhu (Agriculture and Agri-Food Canada, Research Centre, Lethbridge)
Zijlstra, Ruurd (Department of Agricultural, Food and Nutritional Science)
Department
Department of Agricultural, Food and Nutritional Science
Specialization

Date accepted
2010-01-04T21:20:20Z
Graduation date
2010-06
Degree
Master of Science
Degree level
Master's
Abstract
Feeding value of dried distillers grains with soluble (DDGS) as an energy source for lactating dairy cows was evaluated in two studies. A diet in which barley grain was replaced by DDGS at 20% of dietary dry matter (DM) did not affect milk yield but tended to increase rumen pH compared with the control diet. Diets in which barley silage was replaced by DDGS at 20% of dietary DM increased milk yield and decreased chewing time compared with the control diet in both studies, but decreased rumen pH and milk fat concentration in the second study, and the inclusion of alfalfa hay in place of barley silage at 10% of dietary DM did not alleviate those depressions. In conclusion, DDGS can be used as an energy source as a partial replacement of barley grain or barley silage in diets for lactating dairy cows.
Language
English
DOI
doi:10.7939/R37D6F
Rights
License granted by Shuzhi Zhang (shuzhi@ualberta.ca) on 2009-12-22T17:23:29Z (GMT): Permission is hereby granted to the University of Alberta Libraries to reproduce single copies of this thesis and to lend or sell such copies for private, scholarly or scientific research purposes only. Where the thesis is converted to, or otherwise made available in digital form, the University of Alberta will advise potential users of the thesis of the above terms. The author reserves all other publication and other rights in association with the copyright in the thesis, and except as herein provided, neither the thesis nor any substantial portion thereof may be printed or otherwise reproduced in any material form whatsoever without the author's prior written permission.
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