For Holstein animals both UK (Profitable Lifetime Index – £PLI) and US (Net Merit – $NM & Total performance index – TPI) GPTA’s are returned alongside a comprehensive suite of UK/US core production, type, health and fitness traits (Jerseys and Brown Swiss – only US figures at present). Other key production indexes and parentage confirmation are included to accurately predict genetic merit. Additionally information on inbreeding, genetic recessives/conditions/characteristics and haplotypes are included. This includes ALL fertility haplotypes (Holstein 1-5, Jersey 1&2 and Brown Swiss 1&2) Holstein cholesterol deficiency (HCD), CVM and Brachyspina.
Total performance index is owned by Holstein Association US. In order to receive an official TPI for the animal it must be registered within the US herd book. We have put in place a mechanism for this to occur should you wish to receive an official GTPI. This process is subject to an additional registration fee.