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 Beef Breeds

Trait Reliability PTA Percentile
TB (%) 78% (High) 10.4 6
Liver Fluke (%) 28% (Low) 30.9 74

Within Breed

Trait Reliability PTA Percentile
TB (%) 78% (High) 10.4 14
Liver Fluke (%) 28% (Low) 30.9 53

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 (%) 33 40 20% of progeny were TB Reactors 1922 4% of herdmates were TB reactors Progeny had higher (worse) prevalance than herdmates
May 2025 TB (%) 32 39 21% of progeny were TB Reactors 1904 4% of herdmates were TB reactors Progeny had higher (worse) prevalance than herdmates
Sep 2025 Liver Fluke (%) 21 25 36% of progeny had damaged livers 123 20% of herdmates had damaged livers Progeny had higher (worse) prevalance than herdmates
May 2025 Liver Fluke (%) 20 24 33% of progeny had damaged livers 120 19% 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 33 32 21 20
Total Progeny Records 40 39 25 24
Average Progeny Prevalence 20% of progeny were TB Reactors 21% of progeny were TB Reactors 36% of progeny had damaged livers 33% of progeny had damaged livers
Total Herdmate Records 1922 1904 123 120
Average Herdmate Prevalence 4% of herdmates were TB reactors 4% of herdmates were TB reactors 20% of herdmates had damaged livers 19% 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