Necrotic enteritis is a $6 billion problem for the chicken industry.
It starts with a microbe that belongs there. Clostridium perfringens lives in every healthy chicken's gut. But when a bird gets stressed, from a feed change or a vaccination, it turns into a gut-punching parasite. It starts making two toxins that break open the gut lining and pull nutrients out for itself.
On Sept 29, BiomEdit got
@USDA approval for the first engineered microbe that engrafts in the gut and secretes an antibody to stop it. Not by killing C. perfringens, and not with an antibiotic. By neutralizing the toxins and stopping its mechanism of action in its tracks.
That mechanism is where the $6 billion comes from, and it hits farmers three ways:
- Feed conversion. Most birds don't die. They just absorb less of what they eat and need about 11% more feed per pound of meat. Feed is 65 to 75% of the cost of raising a broiler, so this hits the bottom line directly.
- Weight. Birds with the subclinical form run about 12% lighter at market.
- Mortality. In the worst cases, the birds die.
So does it work? In a challenge study with Southern Poultry Research Group, mortality fell from 13.1% to 6.6%, a 48.7% reduction. Treated birds also converted feed better and gained more weight. Same 42 days, same feed bill, more chicken.
The product is already in more than 35 million broilers across three major US producers. That data comes in around January 2027.
It's also proof of concept. You can deliver a microbe, have it engraft, and have it make a therapeutic right where the disease is.
This is just the first of many potential applications for BiomEdit's microbe engineering platform for drug delivery. Next up are rumen strains that cut methane, gut enzymes that break down inflammatory factors, and dogs with IBD, where an antibody made inside the gut can stay out of the rest of the body.
Our correspondent
@AaronBlotnick spoke with Aaron Schacht earlier this month to learn about what BiomEdit is building and where they see this technology going. Schacht's take:
"We have an N of 1. If you think back to the first antibody that was ever made, this might be the same moment for this modality."
Aaron Blotnick has the full story on our website, link in the comments.