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 (%) 97% (V High) 7.43 72
Liver Fluke (%) 43% (Average) 32.28 61

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 (%) 474 865 5% of progeny were TB Reactors 43510 5% of herdmates were TB reactors Progeny had same prevalance as herdmates
May 2025 TB (%) 474 865 5% of progeny were TB Reactors 43513 5% of herdmates were TB reactors Progeny had same prevalance as herdmates
Sep 2025 Liver Fluke (%) 122 125 48% of progeny had damaged livers 619 40% of herdmates had damaged livers Progeny had higher (worse) prevalance than herdmates
May 2025 Liver Fluke (%) 122 125 48% of progeny had damaged livers 619 40% 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 474 474 122 122
Total Progeny Records 865 865 125 125
Average Progeny Prevalence 5% of progeny were TB Reactors 5% of progeny were TB Reactors 48% of progeny had damaged livers 48% of progeny had damaged livers
Total Herdmate Records 43510 43513 619 619
Average Herdmate Prevalence 5% of herdmates were TB reactors 5% of herdmates were TB reactors 40% of herdmates had damaged livers 40% 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