Repressing Disease in Cattle: The Career of Pennsylvania Veterinarian Leonard Pearson

Posted by on Sep 12, 2022 in | Comments Off on Repressing Disease in Cattle: The Career of Pennsylvania Veterinarian Leonard Pearson In 1900 there were 224,248 farms and nearly a million dairy cows in Pennsylvania. The livelihood of dairy farmers depended almost entirely on the health of their cows. Dairy cows were vulnerable to a variety of diseases, but the most feared was tuberculosis. In Pennsylvania, bovine tuberculosis killed more cows than any other infectious disease, and it often destroyed entire herds. Bovine...
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Butter v. Margarine

Posted by on Oct 8, 2020 in | Comments Off on Butter v. Margarine Butter and margarine have been at war since the latter was invented in France in 1869. Made from beef tallow, “oleomargarine,” as it was originally called, arrived in the United States in the 1870s. It was marketed as a cheaper and less perishable alternative to butter. This threat to butter sales led many American dairy farmers to wage campaigns against the new product in legislatures and...
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