World Wide Indexes: Meeting Dairymen's Needs the World Over


WWS recognizes that dairymen use different criteria to select service sires, based on their own economic and breeding philosophy goals. WWS has created 6 unique indexes to help farmers refine their selection of bulls from the WWS’ portfolio to best meet their breeding objectives. In addition, WWS has developed a customized index option. This tool offers breeding enthusiasts the opportunity to select the criteria they value and identify WWS bulls that best meet their breeding objectives.

Create Your Own Index

My Index is designed for the breeding enthusiast, the dairyman that wished to create an index based on the specific traits that apply to his breeding philosophy and management system. Users may select one of the existing indexes and customize the traits and emphasis placed on them, or may create their own index entirely, to identify WWS’ bull that best meet their selection criteria.

GrazingPRO<sup>®</sup> Index

GrazingPRO® Index

World Wide Sires’ GrazingPRO sires are selected to improve the profitability of grassbased production systems by transmitting greater longevity, better mobility, moderate stature, improved component yields, and superior production - all while not compromising fitness traits such as Daughter Pregnancy Rate (DPR) and Somatic Cell Score (SCS).

High Production Index

High Production Index

This index recognizes the bulls that sire high production of milk, fat, and protein along with functional type.

Component Index

Component Index

An index for breeders interested in maximizing the protein and total milk solids content of the high quality milk their cows produce.

Balanced Index

Balanced Index

For the commercial breeder, this index identifies bulls that provide the desirable balance of type and production.