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) 10.07 17
Liver Fluke (%) 28% (Low) 31.62 93

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 (%) 153 311 14% of progeny were TB Reactors 15302 10% of herdmates were TB reactors Progeny had higher (worse) prevalance than herdmates
May 2025 TB (%) 153 311 14% of progeny were TB Reactors 15302 10% of herdmates were TB reactors Progeny had higher (worse) prevalance than herdmates
Sep 2025 Liver Fluke (%) 9 9 78% of progeny had damaged livers 28 58% of herdmates had damaged livers Progeny had higher (worse) prevalance than herdmates
May 2025 Liver Fluke (%) 9 9 78% of progeny had damaged livers 28 58% 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 153 153 9 9
Total Progeny Records 311 311 9 9
Average Progeny Prevalence 14% of progeny were TB Reactors 14% of progeny were TB Reactors 78% of progeny had damaged livers 78% of progeny had damaged livers
Total Herdmate Records 15302 15302 28 28
Average Herdmate Prevalence 10% of herdmates were TB reactors 10% of herdmates were TB reactors 58% of herdmates had damaged livers 58% 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