Lactanet, the leading organization for milk recording, genetic services, and dairy farm management in Canada, will publish Methane Efficiency breeding values with the April 2023 genetic evaluations. After collecting more than 13 million milk mid-infrared spectroscopy records over five years, Lactanet analyzed the records to predict methane emissions and determined that it is possible to reduce emissions with genetic selection.
A methane index will be available for all Holstein sires marketed by Semex with the April release. The bull stud said that the index is 70% reliable for genomic bulls.
This article appeared in the February 2023 issue of Journal of Nutrient Management
on page 5.
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