DairyTalk 314: Recessive Disorder in Focus: Strategies to Address Muscle Weakness in the Holstein Population - by Helmut Demmelhuber

DairyTalk by Helmut Demmelhuber · Mar 5, 2026 · 17m

This podcast episode is based on an industry article examining the genetic defect known as Muscle Weakness (MW) in Holstein cattle. The analysis explains that the disorder is inherited in a recessive manner and becomes clinically visible only when both parents carry the mutation. Genomic testing now allows breeders to identify carrier animals with high precision, making targeted mating strategies possible. The article argues that eliminating all carriers from breeding programs may not be the most effective approach. Instead, it outlines how controlled mating decisions can limit the spread of…