However now, for the primary time within the UK the know-how is getting used to evaluate the females within the herd.
A hair or tissue pattern is taken from the calves at about 4 weeks previous, which is then despatched to the Clarifide laboratories in Kalamazoo, Michigan. There they’re DNA sequenced and marker genes for well being, fertility and productiveness are recognized.
Derbyshire Dairy Farmer Mark Moore, like different farmers, used to depend on expertise and intuition to pick which of his Jersey calves he would spend £1,500-£1,600 on to lift for breeding and milk manufacturing, and which might go to be raised for beef.
Now he is signed as much as the genomics service, which prices £30 per check, plus a retainer charge for the vets who present it.
He says: “We wish to breed one of the best animals, the healthiest, strongest animals which can hopefully give us higher milk, higher elements and a greater, more healthy herd sooner or later.”
Animal rights teams, although, fear that the choice of animals might be dictated by revenue, not welfare.
Phil Brooke, from Compassion in World Farming, says: “Selective breeding has been very unkind to the dairy cow. Cows at present are unhealthy, they’re lame, they’re skinny, they’re infertile, all too typically saved indoors – as a result of they’ve been bred to overwork and to supply extra milk than is sweet for his or her well being.
“The hazard with this sort of device is it’s used as a sticking plaster to take care of issues of a long time of selective breeding.”
However Rose Jackson, from Scarsdale vets disagrees. She says the markers which present the animal’s susceptibility to illness are simply as, if no more, vital than these which counsel a excessive milk yield.
“Traditionally with dairy choice, years again we simply selected on manufacturing as a result of that was measured nicely, so we might do this,” she says.
“However going again over the previous 10 years there’s been extra give attention to well being and health. And now with genomic testing we are able to discover that info out a lot earlier on, which suggests we are able to make make much more knowledgeable selections on farm.”
The primary cows chosen by Mr Moore utilizing the genome science are nonetheless but to be sufficiently old to supply milk. However, he says, the animals whose assessments confirmed genetic markers for higher illness resistance, have certainly proved, to date, to be more healthy.