I am not a specialist but in France, if I understood well harness results (trot attele) seem to be integrated into trotting EBV. You may find results for EBV for all traits and horse here http://infochevaux.haras-nationaux.fr/fr/info-chevaux .

I suppose you may find more scientific references there Article Inheritance of racing performance of trotter horses: An overview

Thank you very much Gregoire

hope these files to be useful for your question.

Hi

It depends on your data type,

If you have just phenotype, use ASREMEL, a good program but is not free, instead, you can use blupf90 family programs or Wombat

If you have both phenotype and genotype I recommend use the blupf90 family program. You can calculate GEBV using GBLUP just with genotyped animals.

You also can use ssGBLUP that uses both genotyped and non-genotyped animal records. More accurate if the number of genotyped animals were enough.

Hope to be helpful.

Thank you very much for your help Heba tallah Abdel Moniem and Mehdi Esmaeili-Fard !