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) 7.27 76
Liver Fluke (%) 57% (Average) 31.92 82

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 (%) 132 333 3% of progeny were TB Reactors 17844 3% of herdmates were TB reactors Progeny had same prevalance as herdmates
May 2025 TB (%) 128 320 3% of progeny were TB Reactors 17127 3% of herdmates were TB reactors Progeny had same prevalance as herdmates
Sep 2025 Liver Fluke (%) 213 297 13% of progeny had damaged livers 1824 13% of herdmates had damaged livers Progeny had same prevalance as herdmates
May 2025 Liver Fluke (%) 205 288 13% of progeny had damaged livers 1788 13% 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 132 128 213 205
Total Progeny Records 333 320 297 288
Average Progeny Prevalence 3% of progeny were TB Reactors 3% of progeny were TB Reactors 13% of progeny had damaged livers 13% of progeny had damaged livers
Total Herdmate Records 17844 17127 1824 1788
Average Herdmate Prevalence 3% of herdmates were TB reactors 3% of herdmates were TB reactors 13% of herdmates had damaged livers 13% 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