Summary of Study ST003254

This data is available at the NIH Common Fund's National Metabolomics Data Repository (NMDR) website, the Metabolomics Workbench, https://www.metabolomicsworkbench.org, where it has been assigned Project ID PR002020. The data can be accessed directly via it's Project DOI: 10.21228/M8HC1Q This work is supported by NIH grant, U2C- DK119886.

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Study ID	ST003254
Study Title	The impact of grass- and grain-finishing on metabolomic profiles of North American Black Angus Beef cattle.
Study Summary	The goal of this study was to compare meat metabolomes (pectoralis profundus) of Black Angus cattle from two commercial US beef finishing systems (pasture-finished on Western U.S. rangeland; n=18 and grain-finished in a Midwest U.S. feedlot; n=18).
Institute	Duke University
Department	School of Medicine
Laboratory	Duke Molecular Physiology Institute
Last Name	van Vliet
First Name	Stephan
Address	300 N Duke St, Durham, NC 27701
Email	stephan.vanvliet@usu.edu
Phone	2177785001
Submit Date	2024-06-05
Num Groups	2
Total Subjects	36
Analysis Type Detail	Other
Release Date	2024-06-18
Release Version	1

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Treatment:

Treatment ID:	TR003382
Treatment Summary:	All analyzed samples (pasture-finished and grain-finished) were from cattle harvested in September-October of 2020 and had a Black Angus genetic background. The pasture-finished animals were between 25-27 months of age, while the grain-finished animals ranged from 18-22 months of age at time of slaughter. The pasture-finished beef samples were sourced from Alderspring Ranch in May, Idaho, USA which employs adaptive grazing practices during rearing and finishing. During the spring/summer, the animals were rotationally grazed through 70 square miles of certified organic mountain rangeland in the Salmon Challis National Forest, ID where they had access to over 500 grasses, forbs, and shrub species from which to choose their diets. During the fall and winter, the cattle grazed organic home ranch pastures and/or ate certified organic hay at Alderspring Ranch, located at the Pahsimeroi Valley. The hay was harvested primarily from meadows at Alderspring Ranch and contained an estimated 20-40 different plant species, with dominant ones being dandelion grass (Taraxacum officinale), orchard grass (Dactylis glomerata), Kentucky bluegrass (Poa pratensis), sanfoin (Onobrychis viciifolia), alfalfa (Medicago sativa), and clover (Trifolium). The grain-finished beef samples were purchased from a distributor near Aberdeen, South Dakota, USA, who procure cattle from local feeder/finishing operations located within ~ 300 km from Aberdeen, SD. During the cow-calf and stocker phase, the cattle grazed on native pastures owned or leased by the feeder/finishing operations in Northern South Dakota, USA. The pastures contained an estimated 20-30 plant species, with dominant ones being big or sand bluestem (Andropogon spp), crested wheatgrass (Agropyron cristatum), annual brome (Bromus spp), blue grama (Bouteloua sp) and clover (Trifolium spp). During the finishing phase, the grain-finished cattle were kept in a feedlot located at the same feeding/finishing operation for ~ 130 days.

Treatment ID:

TR003382

Treatment Summary:

All analyzed samples (pasture-finished and grain-finished) were from cattle harvested in September-October of 2020 and had a Black Angus genetic background. The pasture-finished animals were between 25-27 months of age, while the grain-finished animals ranged from 18-22 months of age at time of slaughter. The pasture-finished beef samples were sourced from Alderspring Ranch in May, Idaho, USA which employs adaptive grazing practices during rearing and finishing. During the spring/summer, the animals were rotationally grazed through 70 square miles of certified organic mountain rangeland in the Salmon Challis National Forest, ID where they had access to over 500 grasses, forbs, and shrub species from which to choose their diets. During the fall and winter, the cattle grazed organic home ranch pastures and/or ate certified organic hay at Alderspring Ranch, located at the Pahsimeroi Valley. The hay was harvested primarily from meadows at Alderspring Ranch and contained an estimated 20-40 different plant species, with dominant ones being dandelion grass (Taraxacum officinale), orchard grass (Dactylis glomerata), Kentucky bluegrass (Poa pratensis), sanfoin (Onobrychis viciifolia), alfalfa (Medicago sativa), and clover (Trifolium). The grain-finished beef samples were purchased from a distributor near Aberdeen, South Dakota, USA, who procure cattle from local feeder/finishing operations located within ~ 300 km from Aberdeen, SD. During the cow-calf and stocker phase, the cattle grazed on native pastures owned or leased by the feeder/finishing operations in Northern South Dakota, USA. The pastures contained an estimated 20-30 plant species, with dominant ones being big or sand bluestem (Andropogon spp), crested wheatgrass (Agropyron cristatum), annual brome (Bromus spp), blue grama (Bouteloua sp) and clover (Trifolium spp). During the finishing phase, the grain-finished cattle were kept in a feedlot located at the same feeding/finishing operation for ~ 130 days.