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) 7.69 67
Liver Fluke (%) 54% (Average) 32.62 40

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 (%) 93 383 2% of progeny were TB Reactors 17136 2% of herdmates were TB reactors Progeny had same prevalance as herdmates
May 2025 TB (%) 89 375 2% of progeny were TB Reactors 16392 2% of herdmates were TB reactors Progeny had same prevalance as herdmates
Sep 2025 Liver Fluke (%) 120 294 16% of progeny had damaged livers 1017 16% of herdmates had damaged livers Progeny had same prevalance as herdmates
May 2025 Liver Fluke (%) 119 293 16% of progeny had damaged livers 1016 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 93 89 120 119
Total Progeny Records 383 375 294 293
Average Progeny Prevalence 2% of progeny were TB Reactors 2% of progeny were TB Reactors 16% of progeny had damaged livers 16% of progeny had damaged livers
Total Herdmate Records 17136 16392 1017 1016
Average Herdmate Prevalence 2% of herdmates were TB reactors 2% of herdmates were TB reactors 16% 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