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 (%) 98% (V High) 9.21 31
Liver Fluke (%) 42% (Average) 31.49 95

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 (%) 361 766 10% of progeny were TB Reactors 17219 10% of herdmates were TB reactors Progeny had same prevalance as herdmates
May 2025 TB (%) 361 766 10% of progeny were TB Reactors 17219 10% of herdmates were TB reactors Progeny had same prevalance as herdmates
Sep 2025 Liver Fluke (%) 36 44 43% of progeny had damaged livers 130 36% of herdmates had damaged livers Progeny had higher (worse) prevalance than herdmates
May 2025 Liver Fluke (%) 36 44 43% of progeny had damaged livers 130 36% 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 361 361 36 36
Total Progeny Records 766 766 44 44
Average Progeny Prevalence 10% of progeny were TB Reactors 10% of progeny were TB Reactors 43% of progeny had damaged livers 43% of progeny had damaged livers
Total Herdmate Records 17219 17219 130 130
Average Herdmate Prevalence 10% of herdmates were TB reactors 10% of herdmates were TB reactors 36% of herdmates had damaged livers 36% of herdmates had damaged livers
Interpretation Progeny had same prevalance as herdmates Progeny had same prevalance as herdmates Progeny had higher (worse) prevalance than herdmates Progeny had higher (worse) prevalance than herdmates