Documentation of calculations

For evaluation results, please refer to "Evaluations" page.

Changes | Traits | Trait details | Schedule/distribution | Formats/edits | Interbull

Changes in calculations

• Changes across time
• Changes by topic

Trait evaluations

• Yield (protein, fat, milk)
• Productive life (longevity)
• Somatic cell score (udder health)
• Daughter pregnancy rate (female fertility)
• Estimated relative conception rate (male fertility)
• Type (conformation)
• Calving ease and stillbirth

Trait calculation details

• Lifetime net merit (NM$)
• Best prediction of lactation yield
• Estimating daily milk yield
• Age-season standardization for yield
• Data-collection rating (DCR)
• Use of owner-sampler data
• True protein
• Multitrait productive life (PL)
• Daughter pregnancy rate (DPR)
• Calving ease (CE)
• Stillbirth (SB)
• Type for non-Holstein breeds
• Goat information

Schedule and distribution

• File receipt and release dates
• Distribution of evaluations
• Access to cooperator data

Formats and edits

• Data-exchange formats
• Record-coding assistance
• Error-code explanation
• Missing-evaluation explanation
• The American ID system
• International ID formats
• Goat ID systems

Interbull calculations

• Interbull homepage
• Evaluations used by Interbull
• Conversion equations
• Advertising guidelines
• International cow list