Hello

I am not a specialist in equine parasitology, but it seems to me that at the top it is a "strongyle" egg, at the bottom left of an "ascarid" egg, and I see nothing identifiable at the bottom right

In the same sample, there were other strongylids, and they were much larger. And this second was also much smaller than the ascarids I've ever seen. I am quite curious to know what it is.

that is why it would be important that you give an indication of the actual size of the eggs observed (not just the magnification). Equine parasitology specialists could then provide you with more detailed information.

Have a good weekend

But it's too small to be an Ascarid. The first maybe can be a Strogyloides?

Size and very neat and clear pictures are essential for identification of eggs in a corposcopy. Concerning identification of equine strongyles eggs, i will not bet too many using morphological keys you can find sometimes as the didn't have yet been correlated with accurate identifications, like by molecular biology