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) 7.26 76
Liver Fluke (%) 68% (High) 30.53 100

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 (%) 372 1675 2% of progeny were TB Reactors 67488 2% of herdmates were TB reactors Progeny had same prevalance as herdmates
May 2025 TB (%) 361 1645 2% of progeny were TB Reactors 65874 2% of herdmates were TB reactors Progeny had same prevalance as herdmates
Sep 2025 Liver Fluke (%) 272 368 12% of progeny had damaged livers 2612 12% of herdmates had damaged livers Progeny had same prevalance as herdmates
May 2025 Liver Fluke (%) 267 363 12% of progeny had damaged livers 2581 12% 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 372 361 272 267
Total Progeny Records 1675 1645 368 363
Average Progeny Prevalence 2% of progeny were TB Reactors 2% of progeny were TB Reactors 12% of progeny had damaged livers 12% of progeny had damaged livers
Total Herdmate Records 67488 65874 2612 2581
Average Herdmate Prevalence 2% of herdmates were TB reactors 2% of herdmates were TB reactors 12% of herdmates had damaged livers 12% 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