Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

Chromatography: Introduction

Chromatography: Introduction

Chromatography is a technique used to separate compounds based on differences of partitioning between two phases, the stationary phase and the mobile phase.
The phase in which the compounds linger or on which the compounds adsorb is called the stationary phase, whereas the mobile phase is the solvent that carries the solutes to be analyzed. In traditional column chromatography, the mixture flows through the stationary phase, and the compounds partition between the stationary and mobile phases...

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by

Same author

HIF-2α could be a key regulator of Fe homeostasis in the gut of yellow-feathered broilers.

Poultry science·2026

Same author

Chromium propionate in turkeys: effect on performance and animal safety.

Poultry science·2023

Same author

Chromium propionate in turkeys: effects on insulin sensitivity.

Poultry science·2023

Same author

Research Note: Chromium propionate for turkeys: effect on tissue chromium concentrations and human food safety.

Poultry science·2023

Same author

Trace mineral source influences digestion, ruminal fermentation, and ruminal copper, zinc, and manganese distribution in steers fed a diet suitable for lactating dairy cows.

Animal : an international journal of animal bioscience·2022

Same author

Research Note: Responses of growth performance, immune traits, and small intestinal morphology to dietary supplementation of chromium propionate in heat-stressed broilers.

Poultry science·2020

Search research articles

Related Experiment Video

Updated: Mar 7, 2026

Assessing Mineral Availability in Fish Feeds using Complementary Methods Demonstrated with the Example of Zinc in Atlantic Salmon

Assessing Mineral Availability in Fish Feeds using Complementary Methods Demonstrated with the Example of Zinc in Atlantic Salmon

Published on: October 29, 2021

Chromium concentrations in ruminant feed ingredients.

J W Spears¹, K E Lloyd¹, K Krafka²

¹Department of Animal Science, North Carolina State University, Raleigh 27695-7621.

Journal of Dairy Science

|February 27, 2017

Summary

This summary is machine-generated.

Most ruminant feed ingredients contain less than 0.50 mg of chromium (Cr) per kg of dry matter. Elevated Cr levels in feed are often due to soil or metal contamination during harvesting and processing.

Keywords:

cattle chromium feed ingredients ruminants

More Related Videos

Author Spotlight: Technologies and Challenges in Elemental Analysis of Food Samples

Author Spotlight: Technologies and Challenges in Elemental Analysis of Food Samples

Published on: December 22, 2023

Quantification of Heavy Metals and Other Inorganic Contaminants on the Productivity of Microalgae

Quantification of Heavy Metals and Other Inorganic Contaminants on the Productivity of Microalgae

Published on: July 10, 2015

Related Experiment Videos

Last Updated: Mar 7, 2026

Assessing Mineral Availability in Fish Feeds using Complementary Methods Demonstrated with the Example of Zinc in Atlantic Salmon

Assessing Mineral Availability in Fish Feeds using Complementary Methods Demonstrated with the Example of Zinc in Atlantic Salmon

Published on: October 29, 2021

Author Spotlight: Technologies and Challenges in Elemental Analysis of Food Samples

Author Spotlight: Technologies and Challenges in Elemental Analysis of Food Samples

Published on: December 22, 2023

Quantification of Heavy Metals and Other Inorganic Contaminants on the Productivity of Microalgae

Quantification of Heavy Metals and Other Inorganic Contaminants on the Productivity of Microalgae

Published on: July 10, 2015

Area of Science:

Animal Nutrition
Trace Mineral Analysis
Agricultural Science

Background:

Chromium (Cr) supplementation is permitted in US cattle diets up to 0.50 mg/kg DM.
Limited data exists on naturally occurring Cr concentrations in common ruminant feed ingredients.

Purpose of the Study:

To determine chromium concentrations in feed ingredients commonly fed to ruminants.
To identify sources of variation in Cr content among feedstuffs.

Main Methods:

Collected feed ingredients from various sources (farms, mills, research facilities).
Analyzed Cr concentrations using established methods.
Investigated the effect of sample processing (grinding) on Cr analysis.

Main Results:

Whole cereal grains had low Cr (0.025-0.041 mg/kg DM).
Forages generally contained higher Cr than concentrates; alfalfa hay/haylage averaged 0.522 mg/kg DM.
By-product feeds varied widely (0.040-1.222 mg/kg DM), with beet pulp being high.
Feed-grade phosphates showed exceptionally high Cr (135.0 mg/kg).
Grinding increased analyzed Cr concentrations in corn, soybeans, and wheat.

Conclusions:

Most ruminant feed ingredients contain less than the permitted supplemental Cr level (0.50 mg/kg DM).
Soil or metal contact during harvesting/processing likely contributes significantly to analyzed Cr levels.
Variability in Cr content necessitates careful sourcing and analysis of feed ingredients.