Updates in genetic tools for farmers: Pro$ and Lifetime Profit Index

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Source: Dairy Research Cluster

April 2019 will see the release of an enhanced Pro$ formula, which will allow for selection for optimal daughter profitability in today’s market conditions. In addition, Lifetime Profit Index (LPI) updates will include the addition of trait weightings to better reflect market demands, as well as new traits to reflect breed association goals. In general, national indexes are updated every few years as market conditions or breed goals evolve.

Pro$ was introduced in August 2015 as a selection tool to maximize genetic response for daughter lifetime profitability and has been quickly embraced by farmers and dairy organizations. The Canadian Dairy Network updated Pro$ and the LPI given significant changes in milk pricing and expenses over the past few years, the accumulation of more data, as well as the opportunity to add new traits and expenses unavailable in 2015.

Pro $ updates will better reflect milk component pricing changes, which favour fat production more since Pro$ was introduced in 2015. Overhead costs and feed costs have also seen significant change. Other improvements to Pro$ include the modification of expenses to reflect cow differences in terms of reproduction and maintenance costs, and the addition of four more years of cow profit data.

All economic values used in cow profitability calculations from 2014 and 2019 are seen in Figure 1 and can be useful when assessing where the major updates to Pro$ originate.

The Holstein LPI has been updated to shift the fat to protein ratio to reflect current component pricing and market demand, and by adding two new traits to the durability component of the formula: rump and hoof health.

For a copy of the full article, including LPI / Pro$ comparisons, click here: https://www.cdn.ca/document.php?id=516

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