Breeding can help protect your herd from TB and Liver Fluke infection.

PTAs are interpretative of the expected prevalence of TB or Liver Fluke infection in that animal's progeny.
Therefore, lower PTAs are more desirable.

Across All Dairy Breeds

Trait Reliability PTA Percentile
TB (%) 99% (V High) 7.2 77
Liver Fluke (%) 83% (V High) 30.48 100

Progeny and Herdmate Performance

Date of Evaluation Trait Total Herds Total Progeny Records Average Progeny Prevalence Total Herdmate Records Average Herdmate Prevalence Interpretation
Sep 2025 TB (%) 764 2205 5% of progeny were TB Reactors 94603 4% of herdmates were TB reactors Progeny had higher (worse) prevalance than herdmates
May 2025 TB (%) 762 2203 5% of progeny were TB Reactors 94318 4% of herdmates were TB reactors Progeny had higher (worse) prevalance than herdmates
Sep 2025 Liver Fluke (%) 865 1082 25% of progeny had damaged livers 5983 22% of herdmates had damaged livers Progeny had higher (worse) prevalance than herdmates
May 2025 Liver Fluke (%) 865 1082 25% of progeny had damaged livers 5981 22% of herdmates had damaged livers Progeny had higher (worse) prevalance than herdmates
Field TB (Current) TB (Previous) Liver Fluke (Current) Liver Fluke (Previous)
Date of Evaluation Sep 2025 May 2025 Sep 2025 May 2025
Trait TB (%) TB (%) Liver Fluke (%) Liver Fluke (%)
Total Herds 764 762 865 865
Total Progeny Records 2205 2203 1082 1082
Average Progeny Prevalence 5% of progeny were TB Reactors 5% of progeny were TB Reactors 25% of progeny had damaged livers 25% of progeny had damaged livers
Total Herdmate Records 94603 94318 5983 5981
Average Herdmate Prevalence 4% of herdmates were TB reactors 4% of herdmates were TB reactors 22% of herdmates had damaged livers 22% of herdmates had damaged livers
Interpretation Progeny had higher (worse) prevalance than herdmates Progeny had higher (worse) prevalance than herdmates Progeny had higher (worse) prevalance than herdmates Progeny had higher (worse) prevalance than herdmates