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Animal Science

Hannah Hollinger

Dr. Hannah Hollinger

Assistant Professor

Animal Genetics

Office: AS/MB 406


Phone: (307) 766-6530

Dr. Hannah Hollinger is an Assistant Professor of Animal Genetics in the Department of Animal Science. Her research interests are focused in improving production efficiency of ruminant livestock through the maternal-fetal interface. Her focus area is in the rumen microbiome and investigating the maternal influence on early rumen microbiome development in offspring as an avenue to improve productivity of the offspring long-term. Hannah’s research integrates components of nutrition, reproduction, and genetics and thus is part of collaborative efforts across disciplines. In addition to her research interests, teaching is also a passion of hers. She teaches the ANSC 4540/5540 Principles of Animal Breeding Course, co-instructs the ANSC 4630 Topics and Issues course, and teaches the graduate level SAS Applications in Agriculture class.


B.A. in Biology, St. Olaf College, Northfield, MN.

M.S. in Animal Science – Ruminant Nutrition, University of Wyoming, Laramie, WY.

Ph.D. in Animal Science – Animal Genetics, University of Wyoming, Laramie, WY.

Professional Experience

2018 – Present Assistant Professor, University of Wyoming

2012-2018 – Graduate Assistant, University of Wyoming


ANSC 4540/5540 Principles of Animal Breeding

ANSC 4630 Topics and Issues (Co-instructor)

ANSC 5180 SAS Applications in Agriculture

Research Interests

Current research focuses on a) understanding the timeline and dynamic of the developing rumen microbiome, b) maternal factors (reproductive microbiome, gestational nutrition, etc.) influencing the rumen microbiome in offspring, c) long-term impacts of the early rumen microbiome on feed efficiency, and d) investigations into the milk microbiome as it pertains to sub-clinical mastitis in sheep and the implications on lamb rumen microbiome and performance. The overarching goal/theme is to improve efficiency of ruminant, livestock species.


See publications by Dr. Hollinger at: Research Gate

See publications by Dr. Hollinger at: GoogleScholar

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