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September 10, 2025Animal Breeding and GeneticsOpen Access

The Use of Intra-Line Selection and Line Crossing in Dairy Cattle Breeding

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First-calf cows from the Elevation line averaged a milk yield of 8272 kg, outperforming many inter-line crosses.
The cross of Bell × J. Besna yielded the highest milk output of 8724 kg, highlighting effective genetic combinations.
Intra-line selection of the Chief line showed potential despite lower yields compared to inter-line crosses, with differences of 420 to 594 kg.
Monitoring linear breeding options can lead to enhanced productivity traits in dairy cattle, identifying the most effective breeding methods.

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Retrospective analysis reveals line crossing significantly improves milk yield in Holstein cattle, suggesting efficient breeding techniques.

Khmelnychyi et al. (2025) studied this question.

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Retrospective analysis reveals line crossing significantly improves milk yield in Holstein cattle, suggesting efficient breeding techniques.