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Faunsdale, AL | Have had to in the past. It happens, milk is screened for aflatoxin.
Limit is 0.5 ppb. Screening tests turn positive at less than that and some plants "call it" at even less which has little basis considering they type tests they run are not calibrated for any level except the limit. So milk can be rejected and bring out the state for an official test and find that it's perfectly legal to sell. If the load is over the limit, the state must test subsequent milkings to ensure they are below the limit before the milk can be loaded. Assuming the source of aflatoxin in the feed is removed, brcause of the feed in the rumen, it takes several days for the levels in milk to decline to below detectable levels, but they should begin to decline within a day. If they do not, then I would say keep looking for the source. Finding it and confiming it can be hard, but always start with corn products if there are any in the diet. | |
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Dairy Farmers
