| 摘要 |
Disclosed is a method of forming a physical barrier in the teat canal of a non-human animal and simultaneously preventing black spot defect in dairy products made with milk from the animal, the method comprising: infusing an amount of a teat seal formulation into the teat canal of the animal, wherein the teat seal formulation comprises a bismuth-free, non-toxic amount of titanium dioxide, zinc oxide, barium sulphate, combinations thereof.
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