Functional herd life Archives

Relationships between functional herd life and conformation traits in the South African Jersey breed

2012
Issue: 1
Volume: 42

J. du Toit, J.B. van Wyk & A. Maiwashe Page: 47 - 54

2024-12-10
flickerleap

The genetic relationship between conformation traits and functional herd life of the South African Jersey population was investigated. Data on conformation traits (n = 46 238) and functional herd life (n = 90 530) on registered South African Jersey cows…

2009
Issue: 1
Volume: 39

J. du Toit, J.B. van Wyk and A. Maiwashe Page: 40 - 44

2024-12-10
flickerleap

Longevity reflects the ability of a cow to avoid being culled for low production, low fertility or illness. Longevity can be used in breeding programmes if genetic parameters are known. Various measures are used for longevity. In this study survival…