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.
On average, a cow is expected to have a breeding span of 10 to 15 years. However, the actual span depends â¦ on the breed; Brahman and Brahman-type cows tend to live longer than British or Continental cattle, and they tend to breed for longer than dairy cows.he average life of a cow is up to 20 years if they are kept in good conditions and has a proper diet.