Microbial supplements lessen impact of Enterococcus cecorum in broilers
Two direct-fed microbials (DFMs) have shown promise in reducing health problems associated with Enterococcus cecorum in broilers.
Two direct-fed microbials (DFMs) have shown promise in reducing health problems associated with Enterococcus cecorum in broilers.
By Vishal Manjunatha, PhD
Clemson University
Clemson, South Carolina
By Guillermo Zavala, DVM, MAM, PhD, Dipl ACPV
Avian Health International, LLC
Athens, Georgia
The avian flu virus continues to affect poultry producers and dairy farms in 2025. In North Carolina alone, the virus has resulted in the loss of millions of birds on poultry farms. Meanwhile, less than a year after avian flu was first detected in dairy herds, a new strain of the virus has been found in Nevada cows. Matt Koci, PhD, a virus expert and professor with NC State University’s Prestage Department of Poultry Science, offers insights.
Enteritidis is one of the most common serotypes of Salmonella globally and is historically associated with poultry. Unfortunately, antibiotic resistance is making it more challenging to treat.
In March, a bipartisan coalition of members from the House of Representatives introduced the “Lowering Egg Prices Act” to address current regulations that require farmers to discard hundreds of millions of eggs annually.
The move to cage-free egg production in the US and Europe created a seismic change in hen breeding programs.
Mobility and leg problems are common in modern-day broilers, which are bred for high breast-muscle yield. Extra activity can help the birds support the extra bodyweight and prevent skeletal disorders. Could colored lighting encourage broilers to be more active and less prone to leg problems?
Kansas State University research has offered a glimpse into the potential of niacin supplementation in broiler diets — but questions remain about the exact benefits producers might expect from such a move.
To help improve biosecurity on individual premises and prevent introduction or spread of highly pathogenic avian influenza (HPAI), USDA recently announced plans to expand assessments and audits available to commercial poultry producers.
A survey of more than 600 Enterococcus samples from Mississippi poultry farms revealed that E. cecorum primarily affects broilers, while E. faecalis is more problematic in hatcheries and very young chicks.
By Bruce Stewart-Brown, DVM, DACPV
Chief Science Officer
Perdue Farms
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