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) 7.67 67
Liver Fluke (%) 74% (High) 31.99 78

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 (%) 801 2415 3% of progeny were TB Reactors 119783 3% of herdmates were TB reactors Progeny had same prevalance as herdmates
May 2025 TB (%) 774 2350 3% of progeny were TB Reactors 115903 3% of herdmates were TB reactors Progeny had same prevalance as herdmates
Sep 2025 Liver Fluke (%) 497 684 10% of progeny had damaged livers 5785 10% of herdmates had damaged livers Progeny had same prevalance as herdmates
May 2025 Liver Fluke (%) 480 664 10% of progeny had damaged livers 5685 10% 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 801 774 497 480
Total Progeny Records 2415 2350 684 664
Average Progeny Prevalence 3% of progeny were TB Reactors 3% of progeny were TB Reactors 10% of progeny had damaged livers 10% of progeny had damaged livers
Total Herdmate Records 119783 115903 5785 5685
Average Herdmate Prevalence 3% of herdmates were TB reactors 3% of herdmates were TB reactors 10% of herdmates had damaged livers 10% 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