To simplify selection decisions these values have been combined into a multi-trait selection index, known as the Calving Value Index. The greater the value the more accurate the EBV. Table 1 Estimated Breeding Values (EBV’s) associated with calvingĮxpected change in percentage of unassisted calvingsĮach EBV has an associated accuracy value expressed as a percentage point ranging from 0 to 100. To maximise financial gain it would be best to select bulls with the relevant correct balance of positive and negative trait values, as highlighted. The EBV’s associated with calving are shown in Table 1. Therefore, using EBV’s to aid stock selection means you are basing decisions on an animals estimated genetic ability and not only on the stockman’s ability to turnout stock. It is determined by the animal’s own performance and also the performance of it’s relatives. It is able to separate out the genetic factors influencing an animal’s performance from the environmental factors, ie. This is possible due to a powerful computer program, known as Best Linear Unbiased Prediction ‘BLUP’. AI Services collect the information from pedigree breeders in Northern Ireland and it is then processed by Signet, through the Beefbreeder service. These are given for a number of recorded traits. Base the future on Estimated Breeding Values (EBV’s). ![]() ![]() It is important when purchasing any pedigree sire to base the final decision on both visual assessment and genetic information. Fortunately, modern technology and breeding tools are available and if used correctly, can help make the difference. Now, the next generation of beef producers must look at what they have inherited and select those animals capable of delivering a profitable future. Information is now available which allows you to base your bull selection on facts.ĭuring the last 30 years the industry progressed by simple breed substitution, imported continental breeds. Calves - profit at calving time Profit from better beef breeding - at calving timeĭifficult calvings, dead calves, all of which increase stress and the number of sleepless nights at calving time.
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