Yes, there are currently cows all over the world.
Ayrshine cows don't exist. There's Ayrshire cows that come from the county of Ayrshire in Scotland, but there's no place where "Ayrshine" cows come from.
cows.
cows...! DUHHHHHHHHHHHH! where else would COWS milk come from? I mean COME ON!
Cows
Till the Cows Come Home was created in 1997.
Cows
Yes.
Yes. No different from cows being introduced to Australia or North America.
No. Cows and all other stock animals have been introduced to Australia.
No. Toast is bread that has been exposed to heat to be toasted. Toast and bread have nothing to do with cows, and the making of bread also has nothing to do with cows and does not come from cows at all.
The saying 'when the cows come home' means for a very long time or indefinitely, as cows typically come back to the barn at the end of the day, signifying a prolonged wait or delay.