Need some help figuring out part of the game? Post your questions here and we'll be glad to help you out.
Claudebot
PSH Offline
Premium
PremiumPremium Visit My Farm Visit My Farm Joined: Thu Apr 10, 2025 12:29 pm Posts: 506

How to reduce COI

Post by PSH »

Hey!
How can I reduce my horses' COI? modt of them have 65-68% COI

Thanks!

PSH
Claudebot
BlackOak2 Offline
Premium
PremiumPremium Visit My Farm Visit My Farm Joined: Sat Jan 30, 2016 12:41 am Posts: 11156

Re: How to reduce COI

Post by BlackOak2 »

PSH wrote: Sat Aug 23, 2025 4:07 pm Hey!
How can I reduce my horses' COI? modt of them have 65-68% COI

Thanks!

PSH
Most of us will keep Grade horses around that match our main stock in body form (and maybe competition ability) to use. I haven't done a test-run on COI management, however there are others that have. Take a look in my quicklinks for a step-by-step, it should be linked in there.

Otherwise, you'll want at least three horses to be used in a round-cycle to help maintain your COI, preferably unrelated to your current stock, but otherwise stock that's at least more than 5 generations out from your current stock and themselves at least three generations out from each other (if 3 generations, you'll want at least 4 horses). If they're three generations from each other, use them as #1 first, then #3 second, then #2 third and finally #4 fourth then repeat. Just remember, the COI numbers of the parents and ancestors for 5 generations will also be calculated into the COI of the foal. What this means is that any horse that has any COI number over 0% in those 5 generations of the foal, will still carry a number somewhere over 0% COI for that foal, even if there are NO repeating horses in those five generations.

Your best bet is to breed back to 0% COI horses. In this way, you'll basically drop COI by about half each time... as long as you use different 0% COI horses.
Don't forget to check it out!
Quick Start Guide For Newbies
Link to additional information.
BlackOak2's Quick-Links
Claudebot
PSH Offline
Premium
PremiumPremium Visit My Farm Visit My Farm Joined: Thu Apr 10, 2025 12:29 pm Posts: 506

Re: How to reduce COI

Post by PSH »

BlackOak2 wrote: Sat Aug 23, 2025 6:13 pm
PSH wrote: Sat Aug 23, 2025 4:07 pm Hey!
How can I reduce my horses' COI? modt of them have 65-68% COI

Thanks!

PSH
Most of us will keep Grade horses around that match our main stock in body form (and maybe competition ability) to use. I haven't done a test-run on COI management, however there are others that have. Take a look in my quicklinks for a step-by-step, it should be linked in there.

Otherwise, you'll want at least three horses to be used in a round-cycle to help maintain your COI, preferably unrelated to your current stock, but otherwise stock that's at least more than 5 generations out from your current stock and themselves at least three generations out from each other (if 3 generations, you'll want at least 4 horses). If they're three generations from each other, use them as #1 first, then #3 second, then #2 third and finally #4 fourth then repeat. Just remember, the COI numbers of the parents and ancestors for 5 generations will also be calculated into the COI of the foal. What this means is that any horse that has any COI number over 0% in those 5 generations of the foal, will still carry a number somewhere over 0% COI for that foal, even if there are NO repeating horses in those five generations.

Your best bet is to breed back to 0% COI horses. In this way, you'll basically drop COI by about half each time... as long as you use different 0% COI horses.
okay thanks!
Claudebot
UltimateHonseness Offline Visit My Farm Visit My Farm Joined: Sun Jul 27, 2025 8:29 pm Posts: 170

Re: How to reduce COI

Post by UltimateHonseness »

PSH wrote: Sat Aug 23, 2025 4:07 pm Hey!
How can I reduce my horses' COI? modt of them have 65-68% COI

Thanks!

PSH
Mine has been introducing 1 or 2 unrelated stallions to my herd and splitting them between an entire generation of mares. Then when their babies are all grown up I breed them to the next fresh batch of stallions. I also bookmark a lot of studs and breed to them to keep my herd more diverse

Return to “Gameplay Questions & Help”