In the recent past, no clear genetic trend for the two studied traits (mbd and mbm) has been observed in the Swiss data in contrast to previous findings in Norwegian cattle [ 28 ] that showed a positive trend.
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A major QTL at the LHCGR/FSHR locus for multiple birth in Holstein cattle.
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The sentences
Reports on the genetic trend for MBR are conflicting, with one study showing a negative trend over time [ 7 ] and another one finding no association between MBR and time [ 13 ].