Cud population to live and function. Consumption by ruminants of an insufficiently fibrous diet leads to little cud formation and therefore lowered amounts of saliva production. This in turn is associated with rumen acidosis, where the rumen pH can fall to 5 or lower. Rumen acidosis is associated with a lowered appetite which leads to still lower rates of saliva secretion. Eventually, a collapse of the microbial ecosystem in the rumen will occur because of the low pH. Acute rumen acidosis can lead to death of the animal, and will occur if the animal is allowed to eat a diet with
Chewing tobacco cancer on June 16, 2014. He claimed the cancer was linked to his lifetime use of chewing and dipping tobacco. 1845: Baseball rules written, chewing tobacco use among players already rampant. 1890: Dr. Robert Koch shows that the spitting of chewing tobacco was leading to a spread of tuberculosis. This leads to a downturn in use of chewing tobacco among the general population, but baseball players continue use. 1909: Honus Wagner, a well-known American baseball player, tells American Tobacco Company to take his picture off of their cartons. He does not want to be responsible for influencing children to smoke.