Scientists are looking for the presence of fipronil, a substance potentially dangerous to humans, after supermarkets in Germany, the Netherlands and Belgium pulled millions of eggs from the shelves.
Now millions of chickens face being culled in the Netherlands as the scandal widens.
"We are currently testing chicken meat in the poultry farms where eggs were infected to determine whether the meat is contaminated as well," Tjitte Mastenbroek, spokesman for food security agency NVWA, told AFP.
Most farms exclusively produce one or the other, said Eric Hubers at LTO, a Dutch farming organisation.
If the meat tests negative for fipronil, producers will be cleared to resume sales, Mastenbroek said, calling the tests "a precautionary measure".
LTO said the probability of chicken meat found to be infected was small.