Badgers: Bovine Tuberculosis
Lord Trees Excerpts(12 years, 9 months ago)
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Lord Trees (CB)
My Lords, I, too, thank the noble Lord, Lord Knight, for bringing this subject forward for debate. I want to try to look at the problem rather holistically, which is a challenge in under 10 minutes, but I will try. Let us be under no illusions: bovine tuberculosis is a major threat to the health of domestic animals and wildlife in Britain today. This is a disease that was almost eradicated from Britain 40 to 50 years ago by means, directed at cattle, that were essentially the same as those we use now—TB testing of cattle and the removal of reactors, although a good many other measures have been put in place that mean that the controls on cattle are even tighter than they were then. A key factor that has changed in the past few decades is the emergence of badgers as a major wildlife reservoir of this infection. There is epidemiological evidence that something like 50% of outbreaks in cattle are related to badger infections.
We are faced now with a problem of infection in badgers and in cattle on a substantial and increasing scale. If I could show the Committee maps of the spread of the infection, noble Lords would see that there has been a relentless spread in the geographical distribution of bovine infection from the original hotspot in the south-west of England, when it was nearly eradicated, to the current situation where bovine TB is threatening the dense cattle populations of Cheshire and Lancashire.
Although there is an understandable focus on the adverse impact on cattle and badger health and welfare, we should not forget that there is another victim of this disease—the cattle farmer who suffers huge stress and distress every time their herd is tested and animals are removed from the herds that they have built up over many years. We do not concern ourselves enough with the human toll that this disease is having. It is a fact that the suicide rate in farmers is the highest of any professional group. Although one certainly cannot claim that this is all due to TB, the fact is that an already vulnerable group of people is being subjected to excessive anxiety and uncertainty. That is the situation that we are facing. When the average city dweller pours their milk over their cornflakes each morning, they may not understand the hard work, worry and commitment that go into producing that daily milk.
What are the options to deal with this disease? Ideally, an effective vaccine for cattle is the solution but for various reasons, which have been made clear most recently by a letter from the EU Commissioner Tonio Borg, it is likely to be some 10 years before a vaccine is accepted and licensed in the EU to be deployed in the UK. Experience shows that in the absence of a vaccine for the target domestic species—in this case, cattle—and where there is a wildlife reservoir of infection, control measures need to address the wildlife reservoir as well as the domestic animal. In the case of bovine TB, there is a wildlife host, the badger, that is present in very high numbers—10 to 15 setts on a farm is not unusual—is in close direct and indirect contact with cattle on grazing areas, in forage crops such as maize and indeed in farm buildings, has no natural predators and is excreting substantial amounts of Mycobacterium bovis into the environment. In this situation, and in the absence of a cattle vaccine, measures directed at the wildlife host, as noble Lords who spoke earlier accepted, are essential as well as stringent measures directed towards cattle.
What are the options vis-à-vis badgers? As your Lordships are aware and as has been mentioned, a vaccine for badgers is licensed for use by injection. It has various limitations, including the fact that a high coverage of the population is necessary to reduce infection and transmission. Something over 40% has been suggested, which is feasible but difficult in a wild animal population compared with a controlled domestic animal population. Animals that are already infected will not be stopped by vaccination from excreting bacteria, and susceptible young animals are constantly being born into the population. Moreover, the animals have to be cage-trapped and restrained to allow injection—itself a stressful procedure for a wild animal. This is one rational approach, and it was advocated by noble Lords who spoke earlier, but it has to be said that the effect on bovine TB incidence is unproven. It is also a very costly measure, as things stand. The current vaccination trial in Wales, which has completed two years, shows that it costs more than £600 to vaccinate each badger. With a population of probably 250,000 to 300,000 badgers in Britain, you need only do the mathematics to determine the cost of vaccinating at least even a proportion of that population.
Still, if interested parties could work together effectively and economically to deliver a vaccine, that would be hugely helpful and doubtless the cost could be reduced. It would require a co-ordinated approach by many different groups, including those working in conservation. In that context, the Welsh Government have offered grant support to private groups to subsidise the cost of vaccination by 50%, and certain conservation groups are seriously considering that option. It is regrettable, however, that so far neither the RSPCA nor the Badger Trust has taken up the invitation to commit funds to achieve badger vaccination.
The Duke of Montrose (Con)
I am most grateful to the noble Lord for giving way. Can he help the Committee by telling us at what age young badgers catch TB and at what age they can be vaccinated?
Lord Trees
I am not sure whether the data are available but they may be. I am sorry that I cannot answer the question; I would hate to do so without preparation.
The dynamics of infectious disease in general show that reducing the density of the population will reduce infection transmission. This does not require the complete elimination of a population—far from it. However, if the population density is lowered so that the rate at which a primary infection creates secondary infections falls below 1, the so-called parameter R0—the reproductive rate—the infection will subside. We know that in a number of areas the R0 for bovine TB is only fractionally greater than 1; in fact, estimates range between 1 and 1.2. Reducing that to less than 1 may be achievable with modest reductions in the badger population.
The use of contraception is a possibility to reduce badger-population density and would be a humane way of doing so, but research is at an early stage. I am told that it will be some years before we might have a deployable contraceptive method. As well as contributing to the control of bovine TB, a reduction in the badger population would benefit other species that appear to be adversely affected by predation by badgers, such as hedgehogs, ground-nesting birds and some rare species of bumblebee.
That brings me to culling. This has been used to reduce many wild animal populations, including badgers, in various circumstances. We currently cull deer, foxes, grey squirrels, seals, magpies and rodents, among others. No one likes killing animals—I certainly do not—but the majority of us accept that culling animals in certain circumstances is justified, provided always that it is done humanely. Members of this House are complicit in the extermination of rodents within these very walls.
If the culling of badgers can be done humanely and with a sound scientific basis, ruling it out at this stage as one of the tools in the control of bovine TB is premature. As the noble Baroness, Lady Parminter, has said, we need to see the report of the independent expert panel on the current trials to evaluate their humaneness and safety, and to understand why the culling rate was less than intended and what factors were responsible for it. As the noble Lord, Lord Krebs, mentioned, a key meeting of experts in 2011 accepted that a reduction in TB incidence of around 16% could be achieved by culling badgers under certain circumstances, and that included allowing for the perturbation effect. One may think that 16% may not sound a huge amount, but if the infection rates from badger to badger, badgers to cattle and cattle to cattle can be reduced by just a relatively small amount so that the infection parameter R0 can be tipped below 1, the disease will be driven to extinction, which is a goal that we all seek.
Animal Welfare: Cats and Dogs
Lord Trees Excerpts(12 years, 10 months ago)
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Lord Trees (CB)
My Lords, first, I thank the noble Lord, Lord Black, for initiating this debate, which, as he pointed out, is the first that we have had on this subject for some time, and it is very timely.
In recent years, a number of cultural, social and economic developments have dramatically affected the well-being and welfare of our pet dogs in the UK. Many of these changes are associated with the breeding of dogs and their subsequent fate, and it is this aspect of canine welfare on which I want to concentrate.
Some issues have been evolving over many years—notably the breeding of dogs with exaggerated physical conformations, which are detrimental to health. Indeed, this was an issue that worried me greatly when I was in practice some 40 years ago. The matter was thoroughly reviewed by Sir Patrick Bateson’s independent inquiry into dog breeding in 2010, and remedial action is being taken by, among others, the Kennel Club and the Advisory Council on the Welfare Issues of Dog Breeding, which was set up as a consequence of the Bateson report.
Such action is very welcome, but I have to say that it is at the very least an embarrassment that this matter was brought to a head by a TV programme and not by those working closely with pedigree dogs, including the Kennel Club, the dog charities and, regrettably, the veterinary profession. We have all been complicit in creating animals that have been so deformed that they have suffered unnecessarily because of physical conformation. I am not talking here about the more complex genetic diseases which affect a proportion of some breeds and which require genetic and epidemiological investigation to predict; I am talking about anatomical deformations, plain for anyone to see. Sadly, there is still a culture which regards dogs as fashion accessories. We must ensure that in future the whims of human fashion do not dictate animal structure to the detriment of the health of those animals.
A more recent development has been the emergence of puppy farming, which is now taking place on an alarming scale. For example, the counties of Carmarthenshire, Ceredigion and Pembrokeshire alone, according to Puppy Alert, have a total of 162 licensed premises, which are thought to produce some 28,000 puppies a year destined for the pet trade in England. The RSPCA estimates that some 50,000 dogs are imported from Ireland alone, and then there are imports of unknown quantity from mainland Europe. The conditions under which these animals are bred are often totally inappropriate, with overcrowding, lack of hygiene and lack of attention to the social needs of the animals. This supply chain leads to a complete separation of the dog breeder and the parent bitch from the puppy offspring and the ultimate dog owner. This is bad for the ultimate owner and certainly detrimental to the well-being of the pup. This dissociation is further exacerbated by the now widespread practice of selling puppies over the internet, to which several noble Lords have referred. One has to ask whether the internet is an appropriate way of selling a dog, but I fear that there is little that we can do about that.
Paradoxically, this commercial exploitation and proliferation of dog breeding, often by criminal gangs, has been accompanied by a huge increase in the number of stray dogs. The Dogs Trust estimates that around 126,000 stray dogs were seized by local authorities in the year to March 2011, and the financial burden on charities and local authorities of dealing with the stray dog problem has been estimated at nearly £60 million. Finally, the growth in cross-border trade—especially illegal trade—exposes the British dog population and, indeed, humans to the increased risk of imported diseases, some of which are unique to dogs but others, such as rabies, are fatal to humans.
What can be done? First, there is much that can be, and is being, done by bodies interested in the welfare of dogs voluntarily to improve the situation by education, information and co-ordination. Defra has published on its website excellent guidelines to follow when buying a cat or dog. The BVA Animal Welfare Foundation and the RSPCA have collaborated to launch the Puppy Contract and the Puppy Information Pack, which provide advice and, on a voluntary basis, have the buyer and seller agree on their responsibilities with regard to the animal’s health and well-being. Furthermore, the Pet Advertising Advisory Group has provided guidelines for websites that advertise puppies for sale, and those guidelines have been adopted by at least two of the websites involved.
However, there is a need for some strengthening of statutory controls, and I submit that it would not need new primary legislation. The potentially excellent Animal Welfare Act 2006, to which many noble Lords have referred, has laid down clear responsibilities for all animal keepers. In addition to the provision of adequate food, water and living conditions, it requires owners to cater for the social needs of animals, to allow animals to express their normal behaviour and to provide,
“protection from, and treatment of, illness and injury”.
Only modest subsidiary measures under the Animal Welfare Act 2006—for example, expansion of the guidelines and welfare code for dogs—would be required to render it unambiguously applicable to some of the above problems around dog breeding, and that would allow the repeal of the Breeding of Dogs Acts of 1973 and 1991 and the Breeding and Sale of Dogs (Welfare) Act 1999.
Lord Gardiner of Kimble (Con)
I apologise to the noble Lord but he is going into the time that will be available for the Minister’s reply.
Lord Trees
Other issues require more rigorous enforcement of existing legislation.
In conclusion, with the refinement of existing regulation and proper enforcement, the Animal Welfare Act could be used better to safeguard the health and welfare of dogs and to ensure that dogs are bred with due regard to the health of their offspring. I urge the Government to consider such action.