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In the Krusinski Lab, research is performed at the nexus of food and animal science. We investigate the effects of agricultural practices on meat nutrient density and authenticity. We perform high-throughput multi-omics work to measure fatty acids, vitamins, minerals, secondary metabolites, and animal health biomarkers in beef. We are also interested in ruminant metabolism and how genes are differentially expressed based on cattle finishing systems. Most of our work is performed on grass-finished cattle, and we are deeply interested in the use of supplemental feeds and agricultural by-products to enhance meat nutrient density and animal welfare. We also use our data to better authenticate grass-finished beef to protect ranchers and consumers from food fraud.
In the Krusinski Lab, research is performed at the nexus of food and animal science. We investigate the effects of agricultural practices on meat nutrient density and authenticity. We perform high-throughput multi-omics work to measure fatty acids, vitamins, minerals, secondary metabolites, and animal health biomarkers in beef. We are also interested in ruminant metabolism and how genes are differentially expressed based on cattle finishing systems. Most of our work is performed on grass-finished cattle, and we are deeply interested in the use of supplemental feeds and agricultural by-products to enhance meat nutrient density and animal welfare. We also use our data to better authenticate grass-finished beef to protect ranchers and consumers from food fraud.
Previous work
Previous work
Ongoing work
Ongoing work
Future work
Future work
Publications
Publications
Highly targeted metabolomics coupled with gene expression analysis by RT-qPCR improves beef separation based on grass, grain, or grape supplemented diet
Krusinski L, Castanon C, Hellberg RS, Maciel ICF, Ahsin M, van Vliet S, Rowntree JE, Fenton JI
Published, Food Front., 2025.
Fatty acids and secondary metabolites can predict grass-finished beef and supplemental cattle feeds
Krusinski L, Maciel ICF, van Vliet S, Ahsin M, Adams J, Lu G, Bitler CA, Rowntree JE, Fenton JI
Published, npj Sci. Food, 2024.
Using foodomics for food authentication: The case of grass-finished beef (poster abstract)
Krusinski L, Hellberg RS, van Vliet S, Bitler CA, Rowntree JE, Fenton JI
Published, IAFP 2024.
Measuring the phytochemical richness of meat: Effects of grass/grain-finishing systems and grapeseed extract supplementation on the fatty acid and phytochemical content of beef
Krusinski L, Maciel ICF, van Vliet S, Ahsin M, Lu G, Rowntree JE, Fenton JI
Published, Foods, 2023
Effects of hay, baleage, and soybean hulls waste used as supplemental feeds on the nutritional profile of grass-finished beef
Krusinski L, Maciel ICF, Sergin S, Jambunathan V, Garg E, Garmyn AJ, Singh S, Bitler CA, Rowntree JE, Fenton JI
Published, Foods, 2022.
Fatty acid and micronutrient profile of longissimus lumborum from Red Angus and Red Angus x Akaushi cattle finished on grass or grain
Krusinski L, Maciel ICF, Sergin S, Goeden T, Schweihofer J, Singh S, Rowntree JE, Fenton JI
Published, Foods, 2022.
Evaluation of fatty acid and antioxidant variation in a complex pasture system as compared to standard cattle feed in the Great Lakes Region
Krusinski L, Maciel ICF, Sergin S, Goeden T, Ali H, Kesamneni S, Jambunathan V, Cassida KA, Singh S, Medina-Meza IG, Rowntree JE, Fenton JI
Published, Front. Sustain. Food Syst., 2022.
Attention to the details: How variations in grass-fed and grass-finished cattle-feed supplementation and finishing date influence the nutritional quality of beef
Krusinski L, Sergin S, Jambunathan V, Rowntree JE, Fenton JI
Published, Front. Sustain. Food Syst., 2022.
Skin carotenoids status of Black/African college students correlates with plasma carotenoids and fruits and vegetable intake independent of skin tone
Faraji B, Jahns L, Bukowski MR, Thompson-Johnson T, Krusinski L, Lawson Goldberg J, Brooks C, Snyder S.
Published, Int. J. Clin. Nutr. Diet., 2022.
Fatty acid and antioxidant composition of conventional compared to pastured eggs: Characterization of conjugated linoleic acid and branched chain fatty acid isomers in eggs
Sergin S, Goeden T, Krusinski L, Kesamneni S, Ali H, Bilter CA, Medina-Meza IG, Fenton JI
Published, ACS Food Sci. & Tech., 2021.
PSIV-15 Influence of genetics on fatty acid profile, vitamin and mineral content of beef from grain and grass-finishing systems (poster abstract)
Krusinski L, Maciel ICF, Sergin S, Goeden T, Rowntree JE, Fenton JI
Published, J. Animal Sci. (Supplement), 2020.
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