Publications by authors named "Wanda Kreikemeier"
Article Synopsis
- The study aimed to evaluate the impact of a direct-fed microbial (DFM) supplement on the presence and levels of E. coli O157:H7 in cattle feces across 20 feedlots in Nebraska, comparing those that used DFM to those that did not.
- A total of 1,320 fecal samples were collected over a 12-week period, revealing a mean within-pen prevalence of E. coli O157:H7 to be 13.5%, with higher prevalence rates noted in no-DFM pens during the peak sampling month.
- Key factors affecting fecal E. coli O157:H7 prevalence included the use of DFM, the month samples were taken, average pen body weight, and
Article Synopsis
- Increased focus on beef cattle spreading foodborne pathogens has emerged, but recent research has declined in this area compared to postharvest solutions.
- A study involving 3,708 cattle on different diets with direct-fed microbials (DFMs) was conducted to evaluate pathogen levels in fecal samples.
- Cattle fed Lactobacillus salivarius (L28) showed lower levels of C. perfringens, while both diets had similar E. coli O157:H7 prevalence, indicating the need for preharvest strategies to minimize foodborne risks in beef.
The purpose of the study was to evaluate the prevalence and concentration of foodborne pathogens in the feces and peripheral lymph nodes (PLNs) of beef cattle when supplemented with direct-fed microbials (DFMs) in feedlots. Fecal samples were collected from the pen floors over a 5-month period at three different feedlots in a similar geographical location in Nebraska, where each feed yard represented a treatment group: (i.) control: no supplement, (ii.
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