Article

DELTA DONORS SMASH 100,000 KG MILK BARRIER

category Article, Genetics

Genomic tests help us discover a lot of information about the genetic merit of cattle at a young age. The current batch of bull dams and the other Delta donors at the Dairy Breeding Center do not have any recorded performances yet, but will prove their worth when they are older. A couple of great examples of successful cows are evidence that CRV’s breeding programme aimed at high lifetime production is certainly paying off.

Thanks to genomic selection we already know as much about the genetic value of a young calf as about a cow with three lactations. CRV therefore …

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Ovalert works as a sixth sense for dairy farmers

category Article, Ovalert

CRV’s Ovalert system registers cow behaviour and links this information to other data that is collected on dairy farms. This data gives farmers a valuable, new herd management tool.

As well as indicating heat expression, the system also flags up any animals with possible health issues. This allows farmers to respond sooner and use less drastic measures.

Their enthusiasm for the management support provided by Ovalert is overwhelming. Dairy farmers Erik and Jolanda Luiten wouldn’t want to be without the system. They run a farm with 170 head of dairy cattle in Aalte…

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April indexrun: new additions to the NVI

Traits including production, longevity and fertility were already part of the NVI merit index. GES will be expanding this formula from April to incorporate hoof health and feed efficiency. In addition, a parallel version of the NVI will be published.
Alongside the NVI for dairy breeds, the GES will now publish NVI calculations for dual-purpose breeds. The breeding value for longevity has also been revised, resulting in more stable breeding values and greater reliability.

Read all about the changes in the April indexrun in >>this article<<.

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Correction on maintenance feed to avoid big, heavy cows

The buzzword in breeding – in addition to health and lifetime production – is feed efficiency, an aspect where the Netherlands leads the field. CRV collects feed intake data and the GES will publish the ‘feed costs for maintenance’ breeding value. According to CRV’s Gerben de Jong ‘This represents the next revolution in breeding after the use of genomics’.

>>Read the total article here<<

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Breeding for feed efficiency gives economical cows

‘How efficiently a cow converts feed into milk is a key economic figure on a farm’, believes dairy farmer Jan Nieuwenhuizen. He has always been convinced that feed efficiency is hereditary. But until recently he had to estimate how well bulls would pass on this trait himself.

‘How is it possible that the daughters of one bull produce 10 kilos of milk more on the same feed ration than daughters sired by another bull?’ A question Jan Nieuwenhuizen has asked himself many times during his career in dairy farming. ‘Feed efficiency, the number of kilos of milk a cow produ…

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