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Semex August 2011 International Holstein Catalogue

Page 63

Semex is committed to bringing to its clients all the rewards of genomic selection

Dairymen have the opportunity to use Semex’s Genomax™ bulls in addition to progeny tested sires. Genomax offers the industry’s leading genomically tested bulls to Semex clients. Genomax is an effective way for dairy producers to utilize the newest and most genetically advanced bloodlines in the world. When utilizing Genomax sires in your breeding programs, Semex has always recommended a “team approach”. To limit the risk associated with each individual bull, Semex recommends that enough different Genomax™ bulls be used at the same time, for example 5 bulls or more. With 5 bulls, the reliability of the group average is close to the reliability of an individual bull proven for 100 daughters provided enough doses of semen are used per bull to produce daughters from each bull.

Equivalent reliability of GenomaxTM bulls when used in groups*

GROUP SIZE (NUMBER OF BULLS)

RELIABILITY (%) OF GPA OF EACH BULL IN THE GROUP (DEPENDING ON THE TRAIT) 60%

70%

5

92%

94%

10

96%

97%

*For unrelated bulls.

The rate of genetic progress in herds that use Genomax™ bulls depends upon the average genetic merit of the bulls used. Because Genomax™ bulls are selected based on their DNA profile and the resulting GPA, this average merit is high, and clients can make significant strides in the genetic quality and profitability of their herd.

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Breeding the best dairy cattle is an art and a science. At Semex, we use both to increase your profits!


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Semex August 2011 International Holstein Catalogue by Semex - Issuu