Orangehorse
Well-Known Member
Up until the 1970s there was a TB eradication programme, government run. If there was a case of TB in a herd, all the badger setts for x distance were gassed and the badgers killed. Most of the UK cattle herd was TB free. At one stage the only TB cases were in a small area of Gloucestershire.
Then it was announced that gassing badger was considered inhumane and TB was obviously not really an issue for anyone any more so it all stopped. At some stage badgers became protected so it was illegal to kill them (I suspect but have no proof that some dairy farmers with a badger sett would ensure that they did not have badgers either).The only time that we ever did a TB test was if the neighbouring dairy farmer had a case and he used to buy in a lot of cows from the south west, calve them down and then sell them again, he was a bit of a dealer really.
It was always took all day to do the tests but we never had a case and it was a very rare occurance.
The numbers of herd breakdowns gradually increased over the years, spread outwards within the dairy herds. There are plenty of places in the UK where there are badgers, cattle but no TB to the east and south of the country and far north. But in the south-west counties where there are lots of dairy herds, Gloucestershire, Somerset, Devon, Cornwall and in south wales, the case numbers grew and grew to the point where routine testing was introuced for more and more farms over a larger and larger area. It spread into Worcestershire, Warwickshire, Northamptonshire, Cheshire.
When a cows tests positive for TB it is taken away and slaughtered even in calf cows. That might represent 100 years of breeding history. There might be 1 or 2 cases or 1/3 of the herd (an organic herd lost over 100 of their cows out of 300 in one test). There is financial compensation for the value of the animal, but no compensation for loss of milk income nor any recognition of whether it is a pedigree animal, it is just a standard amount.
If there is a case of TB on the farm animals cannot be sold as stores to another farm until there have been clear tests. This means that a dairy herd will have to keep all their youngstock, rather than sell them on to other farmers which means housing and feeding them for months, until there have been 2 clear tests.
We have beef cattle, so of all farmers we are the least affected as we can sell our animals even if one has tested positive and has been taken away for slaughter. All animals are pre-movement tested before we buy them. We have to have a licence to buy and move animals onto the farm. We occasionally get letters saying that a herd we have bought from has had a positive TB test, so they come and test the animals we have bought. We have never had a positive case from any of these "cohorts."
So, do badgers give TB to cattle? Most vets believe it where else could it come from? Although they don't like to be quoted. It is not that contagious between cattle, otherwise a whole yard full of cattle would test positive instead of just one or two. We usually have more cases in the autumn after a summer at grass than in the spring after being in all day.
In cattle a TB lesion is encapsulated (read about them in James Herriot) and it is only when a cow is becoming ill with TB that it will spread the disease. Unlike Llamas that can spit TB in their breath. (Learned all that from a Ministry vet one day who was out to check that our vet was doing the job correctly). I think that Llamas do have to be tested, at least it was a proposal in one report.
Human TB is a different strain, but I read somewhere that 1/3 of child deaths in the Victorian era was caused by TB in the milk, before pasturisation.
It is very expensive for the government to have vets running round every day to test 100s of cattle. Since the cull started numbers and cases are reducing, work continues on a vaccine. At the moment the TB test can't distinguish between an infection and a vaccinated animal, hence that is not allowed in the EU although that is being worked on too.
I always wonder what would be the attitude if horses could get TB.
Then it was announced that gassing badger was considered inhumane and TB was obviously not really an issue for anyone any more so it all stopped. At some stage badgers became protected so it was illegal to kill them (I suspect but have no proof that some dairy farmers with a badger sett would ensure that they did not have badgers either).The only time that we ever did a TB test was if the neighbouring dairy farmer had a case and he used to buy in a lot of cows from the south west, calve them down and then sell them again, he was a bit of a dealer really.
It was always took all day to do the tests but we never had a case and it was a very rare occurance.
The numbers of herd breakdowns gradually increased over the years, spread outwards within the dairy herds. There are plenty of places in the UK where there are badgers, cattle but no TB to the east and south of the country and far north. But in the south-west counties where there are lots of dairy herds, Gloucestershire, Somerset, Devon, Cornwall and in south wales, the case numbers grew and grew to the point where routine testing was introuced for more and more farms over a larger and larger area. It spread into Worcestershire, Warwickshire, Northamptonshire, Cheshire.
When a cows tests positive for TB it is taken away and slaughtered even in calf cows. That might represent 100 years of breeding history. There might be 1 or 2 cases or 1/3 of the herd (an organic herd lost over 100 of their cows out of 300 in one test). There is financial compensation for the value of the animal, but no compensation for loss of milk income nor any recognition of whether it is a pedigree animal, it is just a standard amount.
If there is a case of TB on the farm animals cannot be sold as stores to another farm until there have been clear tests. This means that a dairy herd will have to keep all their youngstock, rather than sell them on to other farmers which means housing and feeding them for months, until there have been 2 clear tests.
We have beef cattle, so of all farmers we are the least affected as we can sell our animals even if one has tested positive and has been taken away for slaughter. All animals are pre-movement tested before we buy them. We have to have a licence to buy and move animals onto the farm. We occasionally get letters saying that a herd we have bought from has had a positive TB test, so they come and test the animals we have bought. We have never had a positive case from any of these "cohorts."
So, do badgers give TB to cattle? Most vets believe it where else could it come from? Although they don't like to be quoted. It is not that contagious between cattle, otherwise a whole yard full of cattle would test positive instead of just one or two. We usually have more cases in the autumn after a summer at grass than in the spring after being in all day.
In cattle a TB lesion is encapsulated (read about them in James Herriot) and it is only when a cow is becoming ill with TB that it will spread the disease. Unlike Llamas that can spit TB in their breath. (Learned all that from a Ministry vet one day who was out to check that our vet was doing the job correctly). I think that Llamas do have to be tested, at least it was a proposal in one report.
Human TB is a different strain, but I read somewhere that 1/3 of child deaths in the Victorian era was caused by TB in the milk, before pasturisation.
It is very expensive for the government to have vets running round every day to test 100s of cattle. Since the cull started numbers and cases are reducing, work continues on a vaccine. At the moment the TB test can't distinguish between an infection and a vaccinated animal, hence that is not allowed in the EU although that is being worked on too.
I always wonder what would be the attitude if horses could get TB.