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.
Once the dairy cows are so worn out that they have produced all the milk they can, they are sent to slaughter, usually at around four or five years of age; the average natural lifespan for a cow could be as long as 25 years.Their meat often ends up in low-grade burgers or pet foods.he lives of beef cattle and dairy cows. Cattle are farmed with one of two objectives in mind; either to produce milk or to produce meat. The two industries are intrinsically linked. In the UK, beef cattle spend their time between living indoors in sheds during the winter months and outside for the rest of the year.