[QUOTE=back in the saddle;7163371]
Here’s where it shows all of the common ancestors of Secretariat: http://sporthorse-data.com/d?i=608779&blood=10"a=
So when it is it no longer line breeding or inbreeding? There’s a lot of common ancestors in his pedigree.
side note: 18 foals from Somethingroyal?? :eek:[/QUOTE]
I guess we need a geneticist to weigh in here, but to me, when you have the line breeding that far back, it probably doesn’t mean much, in terms of actual production of characteristics.
Note that he doesn’t really have any common ancestors till G:4…most are even farther back.
When you start going that far back in TBs, ALOT of the horses are going to have ALOT of common relatives because there simply weren’t that many TBs and they were all in the same country.
I read somewhere that 90% of ALL TBs have Eclipse in their pedigree (and I may have that name wrong…maybe it’s Herod…I’m sure Vineyridge will correct me on this…:))…so imagine what todays horse looks like in terms of “linebreeding” to Eclipse if you traced the pedigree that far back.
In fact, TBs are all related — IF you go back to the beginning. There were only a handful of foundation stallions used, after all.
But are those genes still “active” after 200-300 years? To look at the modern TB vs those original types, I would have to say “no.”
So I don’t pay alot of attention to anything farther back than G:5 or 6…except as a point of interest.
BITs: as a PS, perhaps TBs are not the best breed to illustrate this, because they closed the studbook fairly early on (late 1700’s or early 1800’s). Maybe Viney knows exactly how many horses were in that stud book at that time? After that “linebreeding” was almost a foregone conclusion.
I think one of the reasons you don’t see it as much in WBs, in because they have always maintained an open or semi-open studbook, so new stock was constantly brought in. Since PERFORMANCE was the goal, all sorts of horses could fit the bill.
In fact, way, WAY back a Turkoman horse (Akhal Teke) stood at one of the major studs…I think it was Trakehner…and later this same stud went to Ireland where he stood for one of the highest stud fees of the age. But that “age” was something like 1785 or VERY early 1800’s.
The Teke people brag on this alot, but the fact is I doubt that stallion is much influence these days, since many of the stock that stood at that station died during the conflict during WWII…