CRV BV
P.O. Box 454
6800 AL Arnhem

: +31 (0)26 38 98 800
: +31 (0)26 38 98 855
: crv@crv4all.com

InSire
Tomorrow's top genetics today

In conventional testing programmes it takes between four and five years to produce a proven bull. The only available information about the genetic potential of young bulls that are about to enter their progeny test is a parent average with a reliability of around 35%. With marker selection, CRV is able to unravel the genetic potential of a bull at an early stage and determine whether it will be an average animal or the next list topper.

Higher reliability
Analysing the DNA of high potential young sires immediately after they are born, we already know a lot about their true genetic potential. Marker information adds approximately 15% to the reliability of a young sire. With the extra information from genetic markers the reliability of the index of these young sires is already more than 50%. With this method for some characteristics, like longevity, the reliability is double. This higher reliability provides more certainty that the InSire bull will meet the expectations and that his offspring will perform well. With marker selection, the young sires sampled by CRV are twice as likely to break through as a proven bull and this will lead to more rapid genetic progress. The genetic progress is expected to increase by 35%.
High genetic potential
CRV's InSire bulls are selected for their high genetic potential. Only bulls with the highest genetic potential are allowed to be labelled InSire and will be used in the CRV sampling programme. With InSire, CRV now brings top sires onto the market in just two years rather than five - so you have access to tomorrow's top genetics today. The average quality of the daughters of InSire bulls that you will be milking on your farm in a few years time will, therefore, be better than when using conventional young sires.

Outcross pedigrees
Females for the breeding programme are also marker selected and CRV is now looking at a broader scope of potential bull dams. Unusual pedigrees, outcross bloodlines that are rare within the Holstein population, as well as younger animals can be identified to search for that 'needle in a haystack' - that single perfect cow that will provide the next generation of bulls. With the additional marker information, the capacity of new cow families with alternative pedigrees will be known earlier and more comprehensively and can, therefore, be better utilised. By using high quality InSire bulls you will achieve both the fastest and greatest genetic progress.


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