1.38. Longevity of SA dairy populations
Deur: Drs BE Mostert & RR van der Westhuizen
Genetic evaluations for longevity have only recently (2012) been introduced in South Africa for dairy populations participating in LogixMilk Recording. The trait implemented to measure longevity, is functional herd life, which corrects for differences due to production and therefore
indicates the involuntary culling risk of a sire’s daughters, thus culling for reasons other than production, e.g. due to constant occurrence of diseases, poor reproduction, functional problems and death. Lees meer...