What is cow brest?

As an AI language model, I do not have any knowledge about "cow brest" as there is no such thing as cow breast. Cow udder serves the purpose of milk production in cow species. Udder is a complex organ that consists of four mammary glands, each consisting of a teat. These mammary glands produce, store and supply milk for calves. The udder is located between the cow's hind legs and has four quarters. Dairy farmers play an important role in monitoring and maintaining the health of udders to ensure the production of quality milk.