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 (%) 95% (V High) 7.72 66
Liver Fluke (%) 46% (Average) 32.4 54

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 (%) 97 410 3% of progeny were TB Reactors 11772 3% of herdmates were TB reactors Progeny had same prevalance as herdmates
May 2025 TB (%) 90 375 3% of progeny were TB Reactors 10672 3% of herdmates were TB reactors Progeny had same prevalance as herdmates
Sep 2025 Liver Fluke (%) 93 150 15% of progeny had damaged livers 928 15% of herdmates had damaged livers Progeny had same prevalance as herdmates
May 2025 Liver Fluke (%) 86 143 16% of progeny had damaged livers 906 16% of herdmates had damaged livers Progeny had same prevalance as 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 97 90 93 86
Total Progeny Records 410 375 150 143
Average Progeny Prevalence 3% of progeny were TB Reactors 3% of progeny were TB Reactors 15% of progeny had damaged livers 16% of progeny had damaged livers
Total Herdmate Records 11772 10672 928 906
Average Herdmate Prevalence 3% of herdmates were TB reactors 3% of herdmates were TB reactors 15% of herdmates had damaged livers 16% of herdmates had damaged livers
Interpretation Progeny had same prevalance as herdmates Progeny had same prevalance as herdmates Progeny had same prevalance as herdmates Progeny had same prevalance as herdmates