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.
While most cattle live between 18 to 22 years, it's not unusual for Jerseys to live 25 years or more. The oldest Jersey cow recorded was 37 years old living at an animal rescue center in the United Kingdom. Jersey cows reach productive age earlier -- often bearing a calf months earlier than other dairy breeds.hile most cattle live between 18 to 22 years, it's not unusual for Jerseys to live 25 years or more. The oldest Jersey cow recorded was 37 years old living at an animal rescue center in the United Kingdom. Jersey cows reach productive age earlier -- often bearing a calf months earlier than other dairy breeds.