Pre-weaning survival
From BIF Guidelines Wiki
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BIF currently has no guidelines for the collection and analysis of pre-weaning survival data in US beef cattle. These Guidelines do provide recommendations for pre-weaning disposal codes and many organizations do collect these data.
While work has been performed in the US and other countries, future investment in research on the genetics of pre-weaning survival and additional guidelines development would be essential before predictions of genetic merit can be made available. Below are links to examples of the efforts from other countries.
https://www.sciencedirect.com/science/article/pii/S0301622603000447
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982013000600006
