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 gum ban in Singapore import of chewing gum was immediately halted. After a transition period allowing shops to clear existing stock, the sale of chewing gum was completely banned. When first introduced, the ban caused much controversy and some open defiance. Some people took the trouble of travelling to neighbouring Johor Bahru, Malaysia, to purchase chewing gum. Offenders were publicly "named and shamed" by the government, to serve as a deterrent to other would-be smugglers. No black market for chewing gum in Singapore ever emerged, though some Singaporeans occasionally still manage to smuggle some chewing gum from Johor Bahru for their own consumption. The