Darrin M Karcher

Assistant Professor, Poultry Specialist

Purdue University

United States

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Dr. Darrin M Karcher is an Assistant Professor and Poultry Specialist at Purdue University, USA. His research focuses on poultry management practices, including the impact of diet on metabolism and production traits, as well as the genetic parameters affecting egg quality. Recent publications have addressed issues such as the effects of environmental stressors on layer hens and the dynamics of Salmonella transmission in poultry housing systems.

Articles (20)

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2025

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Collaborators (6)

Olayiwola Adeola

Purdue University

UNITED STATES

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Priscila Beatriz da Silva Serpa

Research Assistant Professor of Clinical Pathology

Virginia Tech

UNITED STATES

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Gisela F. Erf

University of Arkansas

UNITED STATES

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Gregory S Fraley

Purdue University

UNITED STATES

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Amy C Murillo

University of California

UNITED STATES

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Marisa Erasmus

Associate Professor

Purdue University

UNITED STATES

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Darrin M Karcher

Research Interests

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About

Articles (20)

Orange corn diet decreased serum corticosterone and improved gait, egg production, egg quality and fertility of breeder Pekin ducks exposed to heat stress

Environmental contamination and horizontal transmission of Salmonella Enteritidis among experimentally infected layer pullets in indoor cage-free housing

Age effects on measurements of hypothalamic-pituitary-adrenal axis activation in laying hens

Effects of genetic strain, stocking density, and age on broiler behavior

Cage-Free Pullets Minimally Affected by Stocking Density Stressors

Genetic parameters for egg quality traits in Pekin ducks

Utilizing 3-dimensional models to assess keel bone damage in laying hens throughout the lay cycle

Symposium: National Extension Workshop: Experiences with conducting poultry extension programs for international audiences

Influence of keel impacts and laying hen behavior on keel bone damage

Phosphorus equivalency of exogenous phytase relative to phosphorus in monosodium phosphate in broiler chickens

n-3 essential fatty acid and vitamin D supplementation improve skeletal health in laying hens

Applied Research Note: Interest, engagement, and motivation - a tool to evaluate extension programming

Environmental sampling methods’ influence on detection of pathogens in cage-free aviary housing

Differences in carcass composition and meat quality of conventional and slow-growing broiler chickens raised at 2 stocking densities

Laying hen production and welfare in a cage-free setting is impacted by the northern fowl mite

Research Note: Internal organ colonization by Salmonella Enteritidis in experimentally infected layer pullets reared at different stocking densities in indoor cage-free housing

Applied Research Note: “The impact of orange corn in laying hen diets on yolk pigmentation and xanthophyll carotenoid concentrations on a percent inclusion rate basis”

Influence of forage substrates on environmental and egg microbiology in cage-free aviary housing

Research Note: Orange corn altered the cecal microbiome in laying hens

Research Note: Contamination of eggs by Salmonella Enteritidis and Salmonella Typhimurium in experimentally infected laying hens in indoor cage-free housing

Collaborators (6)

Olayiwola Adeola

Priscila Beatriz da Silva Serpa

Gisela F. Erf

Gregory S Fraley

Amy C Murillo

Marisa Erasmus

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