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
Da Vinci Science Center two dozen hands-on activities that allow visitors to interact with various scientific fields, ranging from seismology to nano technology to animation. All of the exhibits aim to help children view science as playful and interesting. Inspired by a children's book series, this exhibit explores all the qualities of animals that people tend to find disgusting. Visitors who walk through this exhibit learn about the various means of childbirth throughout the animal kingdom and the variety of nutrient sources different species rely on, from cows chewing cud to mosquitoes sucking blood. There's also a section devoted to showing what happens to