Buy new feed, a different brand if possible. Keep hay and clean, fresh water available at all times. Oat hay and oat seed tops might be the first things the bunny will want to eat. This provides protein to help repair the damaged GI tract. The effects can be partially counteracted by an antioxidant such as vitamin E. Vitamin A, selenium and zinc, Thiamine and other B vitamins may prove beneficial.
Milk thistle can be helpful in treating liver damage.
Mix the feed well before sampling. Keep two extra samples aside for further testing. When multiple mycotoxins are found together in a sample, their combined synergistic effect is usually more potent than any one alone. More than one hundred dogs fell ill and many died. Mycotoxins were found in two well known brands of dog food and the companies were forced to recall their products due to consumer pressure.