Hundreds and hundreds of years. It's still happening today, actually.
- The demand for beef from cattle rose in the East.
Usually at the age of two, however, they will show heat cycles before then. Most farmers start breeding females timed to have the first calf at the age of two and most bulls depending on size can start to breed around 2.
Assuming you are referring to from birth to when the calf reaches 900 lbs, this depends on the breed of the calf. Continentals may take around 10 or 12 months to reach 900 lbs when they are put on good feed; British breeds may take around 18 months to reach this weight. The smaller cattle (Jerseys, Dexters, Low-line or Miniature cattle) that have a terminal weight at 900 lbs may take 3 or 4 years to reach this mature weight, if they do at all.
Humans will normally resurface approximately 2-3 days after drowning. This is because of the gas forming bacteria in their bowels. I would assume cattle would be about the same.
Genetics is a tricky thing and there are no 100% guarantees that you will get the color you want. That being said the best possible way that this might be achieved would to test the genetics of each breeding pair. And continue to breed a successful pair, but have a care not to over breed them. A roan will not necessarily produce another roan either. Any born not of the color you want test to make sure of the genetics and decide to keep and breed or sell. It would take years of careful screening, breeding, trials and errors and disappointments. But with patience and persistence I believe that it would be possible. :)
as long as i takes
three to four months
roughly the same time it will take to breed impure ones. hehe
You cannot breed a legendary with any Pokemon.
you mean days
23 hours
Cattle (cows and sheep) are borne not built.
500-1000 steps
They could make 10 to 15 miles a day herding 1,000 head of cattle.
It takes 12 hours for them to breed.
It takes 14 hours to breed and hatch in DragonVale.
Nintendogs can't breed or have puppies.