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 historian of the American South in the late 1860s reported on typical usage in the region where it was grown, paying close attention to class and gender: Chewing tobacco is still used, predominantly by young males in some parts of the American Southeast, but also in other areas and age groups. In September 2006 both the Republican and Democratic candidates for Senator from Virginia admitted to chewing tobacco and agreed that it sets a bad example for children. In the late 19th century, during the peak in popularity of chewing tobacco in the western United States, a device known as