World Wide Indexes: meeting dairymen’s needs the world over
WWS recognises that dairymen use different criteria to select service sires, based on their own economic and breeding philosophy goals. WWS has created their indexes to help producers refine their selection of bulls from the WWS portfolio to best meet their breeding objectives.
While the greatest variables affecting pregnancy rates are accuracy of heat detection, insemination technique and other management factors, looking at all available fertility values of individual sires can help. Through evaluation of the Composite Fertility Index (CFI) and Sire Conception Rate (SCR), along with intense semen quality evaluations, these elite sires earn the designation of Fertility +.
Trouble free cows that convert feed into milk at high levels are profitable cows. With rising feed costs, dairy farmers around the world are looking for ways to improve efficiency to increase profitability. Breeding for optimum efficiency is the sole objective of Optifeed. By using Optifeed bulls, dairymen can breed cows that will increase their farms profitability.
RoboMaxx identifies bulls that specialise in producing daughters who perform well with minimal management on robot milking systems. RoboMaxx focuses on sires that transmit high milk, fat and protein production, correct teat placement with adequate teat length, excellent feet and legs, and low somatic cell scores. By using these sires, you can create the next generation of profitable cows for your specific milking system.
Indicates a bull whose genetic production and type evaluations are based on a combination of traditional pedigree and genomic data. A GForce Plus sire has an SCR score and calving ease information based on actual daughter data making it easier to use these bulls with confidence.
Indicates a sire that is predicted to sire calves that are born more easily than breed average.
An index for breeders interested in maximising protein and total milk solids.
This index identifies sires that best transmit the management traits associated with trouble free, long-lasting cows.
This index recognises the bulls that sire daughters with a high production of milk, fat and protein along with functional type.
Focused on high type, legs and feet, udders and stature to recognise sires of show champions.
Designed for producers that utilize a low-input grazing system and desire medium sized, mobile cows with high milk components.
For the commercial breeder, this index identifies bulls that provide the desired balance of type and production.
Indicates Wellness Trait Index (WT$) sires. WT$ focuses exclusively on six wellness traits (mastitis, lameness, metritis, retained placenta, displaced abomasum and ketosis) and includes an economic value for Polled.