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 (%) 93% (V High) 9.64 23
Liver Fluke (%) 35% (Low) 32.14 69

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 (%) 75 135 13% of progeny were TB Reactors 8653 11% of herdmates were TB reactors Progeny had higher (worse) prevalance than herdmates
May 2025 TB (%) 75 135 13% of progeny were TB Reactors 8653 11% of herdmates were TB reactors Progeny had higher (worse) prevalance than herdmates
Sep 2025 Liver Fluke (%) 0% of progeny had damaged livers 0% of herdmates had damaged livers Neither Progeny nor Herdmate records were used to estimate breeding values for this animal
May 2025 Liver Fluke (%) 0% of progeny had damaged livers 0% of herdmates had damaged livers Neither Progeny nor Herdmate records were used to estimate breeding values for this animal
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 75 75
Total Progeny Records 135 135
Average Progeny Prevalence 13% of progeny were TB Reactors 13% of progeny were TB Reactors 0% of progeny had damaged livers 0% of progeny had damaged livers
Total Herdmate Records 8653 8653
Average Herdmate Prevalence 11% of herdmates were TB reactors 11% of herdmates were TB reactors 0% of herdmates had damaged livers 0% of herdmates had damaged livers
Interpretation Progeny had higher (worse) prevalance than herdmates Progeny had higher (worse) prevalance than herdmates Neither Progeny nor Herdmate records were used to estimate breeding values for this animal Neither Progeny nor Herdmate records were used to estimate breeding values for this animal