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) 11.34 5
Liver Fluke (%) 59% (Average) 30.7 100

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 (%) 1017 2655 12% of progeny were TB Reactors 88322 8% of herdmates were TB reactors Progeny had higher (worse) prevalance than herdmates
May 2025 TB (%) 1017 2655 12% of progeny were TB Reactors 88322 8% of herdmates were TB reactors Progeny had higher (worse) prevalance than herdmates
Sep 2025 Liver Fluke (%) 51 52 60% of progeny had damaged livers 215 53% of herdmates had damaged livers Progeny had higher (worse) prevalance than herdmates
May 2025 Liver Fluke (%) 51 52 60% of progeny had damaged livers 215 53% of herdmates had damaged livers Progeny had higher (worse) prevalance than 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 1017 1017 51 51
Total Progeny Records 2655 2655 52 52
Average Progeny Prevalence 12% of progeny were TB Reactors 12% of progeny were TB Reactors 60% of progeny had damaged livers 60% of progeny had damaged livers
Total Herdmate Records 88322 88322 215 215
Average Herdmate Prevalence 8% of herdmates were TB reactors 8% of herdmates were TB reactors 53% of herdmates had damaged livers 53% of herdmates had damaged livers
Interpretation Progeny had higher (worse) prevalance than herdmates Progeny had higher (worse) prevalance than herdmates Progeny had higher (worse) prevalance than herdmates Progeny had higher (worse) prevalance than herdmates