This study was undertaken to develop an assay for biologically active chromium suitable for determining the best form of chromium for human supplementation studies. The assay involved monitoring the decrease in fasting serum glucose for 1-3 hours in normal human subjects following ingestion of 100 μg of chromium. The maximum decline occurred 1-2 hours after taking the chromium. The average maxi...

The public health impacts associated with stack emissions from hazardous waste incinerators have become a major concern in recent years. Most evaluations of incinerator stack emissions have focused on three classes of compounds: metals, semivolatile, and volatile compounds. These investigations have been complicated by the difficulty and expense of analyzing the emissions and the limited amount...

This is the second in a series of peer-reviewed practice tip articles, each including two or three fact sheets on feed additives for swine. The previous practice tip, published in the September-October issue of the Journal of Swine Health and Production, included fact sheets on acidifi ers and antibiotics (J Swine Health Prod. Future fact-sheet topics will include fl avors; high dietary levels ...