
Hiya
Depends if you have a lurcher as in 'bred to work' or a lurcher as in 'just happens to be the correct breeds, ie a sighthound and a something else'..
A wolfie to old english sheepdog would technically be a lurcher, however no sensible person would breed such a thing, as it wouldnt work.
The life expectancy of that dog i would say to be around ten, if that.
However, a working bred dog (and most lurchers are, and to get more pedantic, if its NOT bred to work, from working parents then IMHO its not a lurcher) should have a life expectancy into its teens at least.
How big is your lurcher? when you say 'greyhound x goat' could he be a grey x bedlington or grey x deerhound? That will often give the 'goat' appearance....
My saluki x grey i expect to see 13, she is 9 now, and apart from having some lumps removed and being spayed, she is in good nick, not showing signs of slowing down, in fact she seems to be reliving her puppy hood!
My beddy x whippet x wbc x grey (looks like a beddy x whip though) i would hope he should see 15, however as stupid as he is, that is doubtful!
Have you got any pictures? if so, pm me and ill tell you my email addy (dont use the one on here i dont use it any more) and i could ahve a guess at what sort of goat he is x'd with!
Em