Cows are in danger because they are being teased by the care takers as they are given sometype os injection by which they can produce more and more milk it is killing cows in thousands . Think how selfish they are for their more money they are giving cows injections  by which they are killed
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Cows are in danger from this century itself. They are injected various chemicals to produce milk before the expected time. This harms the offspring(calf) as it may be deficient in some of its gene by causing some alternations and mutations.
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