Dairy cows fed industrial hemp produced milk that had detectable levels of THC, the intoxicating ingredient in marijuana, says a German study.
The cows fed THC — delta-9-tetrahydrocannabinol– also displayed signs of behavioural changes including yawning, salivating more than usual and moving unsteadily on their hoofs, according to the study, published last week in the journal Nature Food.
The study of Holstein cows in Berlin was peer-reviewed and is said to be one of the first major looks into how industrial hemp can be used as a supplement in animal feed.
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