Thanks for all the suggestions. The taint is definitely in the silage. Changed silage, taint stopped. But we still don’t know what weed has caused the taint. Will just have to separate the weedy silage somehow next time I suppose
We had beautiful silage, no slurry cos too much cover lying over winter. It was cut and wilted . Very little weeds. Baled mid mayThat’s interesting, May 2020 was very dry. The silage was 21% D.M.. but it was cut low and there was some dead grass in the bottom. Perhaps we picked up manure. We always have a lot of weed because we are organic. Daisies,dandelion,dock,plantain, thistles, and charlock. We need to pin it down as we can’t afford to have taint next year. And we have a lot of tainted silage which will be difficult to feed out.