In England and Wales it is called Year 6 and the pupils are usually 10 to 11 years old. Often it is the seventh year of school; the years being called Reception, Year 1, Year 2, Year 3, Year 4, Year 5 and Year 6.
Quick Answer. According to Animals Australia, the natural lifespan of a dairy cow is approximately 20 years. The average lifespan of a beef cow is 15 to 20 months.
How long does milk last? Milk lasts for 7 days beyond its best bydate if properly stored as described below. Milk is a dairy product produced by mammals such as cattle, goats and sheep. It comes in a variety of types (whole milk, reduced fat, skim and non-fat milk) and can be processed into other dairy products such as yogurt, butter and cheese.