HGG Community Forums

Everyone has their own, different expectations. I think at one point Ammit said a .4 increase per generation over parents is pretty good, and .6 was great.

Now that the foals are a combination of the parents should the PT of both parents be averaged together and then see if the foal is higher?

Ammit stated on the FB page that the .4 increase is by generation, NOT compared to the parents PT.

Oh! I KNEW I saw that .4 somewhere! Sorry!

If I read that thread correctly, later in that post Ammit specified that those values were for the AFPTs not the mares or Studs PT. So I read that Gen 2 parents should have an AFPT of 10.3.

If I understand correctly, AFPT is looked at to assess both parents. I have a stud with 6.80 PT but a 10.03 AFPT. While I know its a teensy bit lower than those goal numbers posted above but am I correct in assessing my stud's ability to bust out good foals on these numbers?

@DragonRun, that is correct. A foundation should have an AFPT score at 9.9 or above, a second generation should have an AFPT score at 10.3 or above, and so on.

@Timber, if that is a foundation stallion, yes. The PT score is not closely related to breeding ability in the lower generations, such as foundation and second generation. That is how you can get a low PT (6.8) throwing high PT (10 range) foals.

I can't recall where I read this, but I do remember that PT score is not breeding ability though it is a good gauge in breeding quality in the higher generations (5th, 6th, etc.).

EDIT: Because I am a hoarder of all the links. :P Both of the links listed below are excellent reads on culling methods using AFPT and why looking at a dam's/sire's PT score doesn't necessarily relate to their breeding ability.
Blue papered 2G mares?
AFPT to cull

If you don't want to read all of the discussion, look no further, I will post the example I used below:

@ObsidianKitsune,
Further down in the generations I think you want to see a close relationship between PT score and breeding ability, but at the second generation I feel like a lot of variability is present. In fact, I have a second generation mare with a low PT score of 9.4, red papered, and her AFPT score is 10.5.

2G Bella Guardia
AFPT score: (10.3+10.2+10.7+10.5+11)/5 = 10.5

If I had culled by her PT score, she would not have made the 9.9 PT score for the second generation mark however she is a prime example that PT is not breeding ability. That's why you need to look at the AFPT score.

Hope that helps. :)