Genetic evaluation for health traits of Holstein cows in the Czech Republic

ZAVADILOVÁ, Ludmila, KAŠNÁ, Eva, KRUPOVÁ, Zuzana, KUČERA, J., ŠLOSÁRKOVÁ, Soňa a FLEISCHER, Petr., 2023 Genetic evaluation for health traits of Holstein cows in the Czech Republic. In Book of Abstracts of the 1st Regional Meeting of the European Federation of Animal Science. Nitra, Slovakia: Slovak University of Agriculture in Nitra, Slovakia, s. 32. ISSN
Year2023
CathegoryOthers
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Abstract

Genomic breeding values (GEBV) for clinical mastitis (CM) and three groups of foot and claw disorders (CD): infectious digital disorders (IDD), claw horn lesions (CHL) and overall claw disorders (OCD) were predicted for Holstein cows in the Czech Republic. Subsequently, a health index was calculated using predicted GEBVs. The official web application Diary of Diseases and Medication was a source of health records. Datasets included: CM data from 178,107 lactations of 100,873 Holstein cows on 126 farms; IDD 89,727; 50,244; 54; CHL 59,350; 32,687; 35; OCD 121,585; 67,729; 73, respectively, from 2017 to 2022. The linear animal model and single-step genomic prediction were employed for each health trait separately using the Program package BLUPF90 (Misztal et al. 2018).