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VikingNews UK 01 2016
11 / 24
research and development, r&d ? always benefit the farmers new challenges the shift in
cattle
breeding
caused by gs towards the use of young
breeding
candidates, challenges
cattle
breeding
in new ways. we select the best young bulls and young bull dams, and we have to ensure the best semen quality and high semen production from young bulls at an age of 10 months. higher reliabilities, the key issue the big scoop in gs is to get sufficiently high reliabilities for genomically en- hanced
breeding
values, gebv, on a newborn calf. next step in development will be to get even higher reliabilities. more genotyped females adding females in the reference popu- lation has shown positive effects on reliability on gebv. lowering prices on genomic tests in combination with higher reliabilities will make gs more efficient and grow benefits for farmers. snp marker information ? more knowledge ? increased reliabilities with more knowledge and the effect on single traits, it will add extra reliability on gebv and provide us with more ef- fective tools to ensure future genetic progress. sequencing of the whole cat- tle genome has exactly the aim to give us basic knowledge in this field. improvement of the statistic models to make improvements of the used statistic models, it is also necessary to improve reliabilities on gebv. new
breeding
schemes gs in combination with use of embryo techniques and sexed semen works in practice.
cattle
breeding
moves towards more use of laboratory systems. never- theless, phenotypes from herds with high registration level will also in fu- ture be needed to get reliable genetic proofs.
feed
efficiency, fe, need cutting edge technology
feed
intake covers approximately 70% of the costs on a dairy cow. better fe reduces yearly cost per cow. improve- ment in a cow?s efficiency can reduce the amount of needed
feed
and also re- duce emission of methane and npk. our aim is to publish genomic breed- ing values for fe within the next three years. vikinggenetics works together with partners to develop equipment for measuring individual
feed
intake in a commercial herd. an index including direct registration of
feed
intake will have much higher reliability compared to an ?indirectly calculated index? based only on correlated traits like milk production and conformation traits. future
cattle
breeding
in the future,
cattle
breeding
will be more accurate and efficient resulting in higher genetic progress. new genomic tools, sensor techniques, digitalization of registration and new equipment to do the measuring of new traits;
feed
intake and cow behavior and perfor- mance are some developments that we can expect to come through the next 10 years. genomic selection (gs),
feed
efficiency (fe) and male fertility are core focus for vikinggenetics r&d.
cattle
breeding
has undergone a revolution the past five to eight years with the introduction of gs. the result is a doubling of the genetic progress from two ntm units per year to four ntm units per year. farmers in finland, sweden and denmark have really understood the advantage of using young, genomically selected bulls, a fantastic development and an important step for en- suring higher genetic progress and better profitability for the farmer. by s๖ren borchesen, head of r&d, vikinggenetics s๘ren borchersen 11 february 2016 | vikingnews
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