APPENDIX 2
Letter from Mr John Gripper, Manor Veterinary
Surgeons (L2)
I am sending you a copy of a letter which I
sent to the Minister of Agriculture on 28 September 1998, and
I would like the contents of this letter to be submitted as written
evidence to the agriculture committee who are looking into the
practical implications of the governments proposal for implementing
the recommendations of the Krebs report.
This letter was subsequently published in the
Veterinary Times and in its preparation I did draw on the expertise
of a number of veterinarians who have practical experience of
this matter.
Incidentally I would add that I have not received
either a reply or even an acknowledgement from the Minister of
Agriculture since sending him this letter over six weeks ago.
17 November 1998
Letter to Rt Hon Nicholas Brown, MP, Minister
of Agriculture, Fisheries and Food from Mr John Gripper (dated
28 September 1998)
Congratulations on your new appointment. One
of the unresolved problems that will remain on your desk is how
to control the increase of Tuberculosis in Cattle and Badgers.
Following the recent publication of the Bourne
Report, the Food and Safety Minister, Jeff Rooker, has announced
details of the new MAFF strategy, but that will not satisfy everyone.
I read that you have no agricultural background,
so it will be possible for you to look at this issue afresh with
a clear analytical mind. I hope that by setting out the basic
facts and opinions this letter may be of some help to you in reaching
rational and logical decisions.
I have read 191 pages of the full Krebs report
and the Bourne report, but like you, I have no expert knowledge
in this field. As a vet in farm practice, I tested thousands of
cattle to help try and eradicate TB in the UK. I have a small
farm in badger country and am a member of the NFU and FWAG. I
am also involved in a number of wildlife conservation projectsso
I feel that I have a foot in each camp.
FACTS
(1) The number of cases of TB in cattle is
rising each year at an alarming rate
Earlier this year the Government placed a moratorium
on new badger culling operations in all affected areas and the
problem of TB in cattle continues to escalate. There are now as
many breakdown herds in 1998 as there were in 1948. The difference
is that in 1948 the infected animals were old cowsnow it
is young cows and the problem is getting worse.
In the West Midlands the number of herd restrictions
increased by almost 30 per cent from January to May 1998 (145)
compared to the same period in 1997 (116). The number of confirmed
breakdowns in the south west region of England inceased by 45
per cent from January to May 1998 (204) compared to the same period
last year (141).
Serious outbreaks are occurring in Gwent and
West Wales. Two years ago Staffordshire, Shropshire and Derbyshire
were free of bovine TB, there are now 67 herds under restriction.
Last year Cheshire had its first herd breakdown and it currently
has eight herds under restriction. This year Nottinghamshire and
Oxfordshire both had their first herd restrictions.
I appreciate that the figures for herds under
restrictions are not the same as herds where positive infection
has been diagnosed but the figures I have used raise real concerns
for all those involved with the cattle industry.
Official statistics for the South West Region
for total herd breakdowns over the last four years are:
Final January-December figures
Final January-December figures
Final January-December figures
January-July
| 1995
1996
1997
1998 | 316
329
413
311 (7 months)
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The 1998 figures are for seven months only and normally the
last three months of the year show increased TB incidents when
cattle testing occurs following summer grazing.
(2) Current MAFF policy to control the TB outbreak in cattle
has failed
The "clean ring strategy" which culled all badgers
in the area around an outbreak was effective, but abandoned by
the Ministry in 1988. This was replaced by the "interim policy"
of only removing badgers when they enter the "reactor area"
of the infected farm. This has been a failure because the badgers
that live off the farm are not removed, the lactating badgers
remain a foci of infection and the re-colonisation of setts is
rapid. The incidence of new breakdowns has increased significantly
during this period of "interim policy".
The "live test" trial introduced in 1994 to detect
infection in live badgers was suspended in 1996 after two years
because of poor performanceit only detected 41 per cent
of truly affected badgers.
(3) It is generally accepted that badgers play a major
role in the transmission of TB to cattle
The Zuckerman report (1980), the Dunnet report (1986) and
the latest report to the Minister of Agriculture by Professor
Krebs (1997) all concur that badgers are acting as a reservoir
of infection for cattle.
The Krebs report stated that "The sum of the evidence
strongly supports the view that in Britain, badgers are a significant
source of infection to cattle. Most of this evidence is indirect,
consisting of correlations rather than demonstrations of cause
and effect; but in total, the available evidence, including the
effects of completely removing badgers from certain areas, is
compelling".
The route of transmission is considered to be ingestion of
pasture contaminants of M.bovis bacteria mainly by urine or sputum
but possibly also by faeces and pus from suppurating abscesses.
Other wildlife, such as deer, may contract infection but to a
much lesser degree and are not believed to be a significant reservoir
of infection.
(4) The Krebs Report has proposed that five-year experimental
trials should be underaken to assess the effectiveness of control
measures. In the meantime no culling should be carried out outside
the hotspot areas but instead simple husbandry measures should
be adopted.
The experiments proposed by Krebs will be overseen by an
expert independent scientific group, chaired by Professor John
Bourne, MRCVS, will last for five years and then be followed by
a further period of evaluation of the results. Your recent announcement
that these trials will start in the next few weeks but be phased
in over two years will even further extend the time needed for
the experimental trials and evaluation.
There is clear evidence from work which has already been
undertaken to show that badgers act as a reservoir of infection
for cattle. As part of the badger clearance programme and to study
the effect of badger removals, MAFF in co-operation with the then
Nature Conservancy Council, embarked on an extensive badger removal
exercise in a "TB hotspot" area of Thornbury, South
Gloucester in 1976.
The Thornbury exercise area of 104 sq km comprised approximately
100 farms with total cattle numbering approximately 12,000. Starting
in 1976 all badgers were removed, the area being virtually cleared
during 1977. During the 10 years prior to the start of this exercise
the reactor herd incidence averaged 5.6 per cent but in 1978 it
fell to 1.4 per cent and by 1979 to zero where it remained until
1990 when partial re-colonisation by badgers was allowed and since
which time outbreaks in cattle have restarted.
A similar smaller scale exercise to this was carried out
in South Dorset in an area of 12 sq km yielding very similar results
and a large scale clearance is currently being undertaken in County
Offaly, Republic of Ireland in an area of 600 sq km. This last
exercise started in 1989 and interim results have shown a 52 per
cent reduction in the number of reactors during 1991 compared
to an increase of 33 per cent in the control area where badgers
have not been removed.
(5) The number of badgers in the countryside is showing
a rapid increase
Badgers are a protected species, but not endangered. A national
survey in the 1980's estimated the overall population of badgers
in the UK at 250,000. Last year a survey by the People's Trust
for Endangered Species found that the number of badgers has increased
by 76 per cent in the past 10 years. It has been estimated that
50,000 badgers are killed on the roads each year.
(6) The best prospect for the control of Bovine TB is to
develop a vaccine for Cattle
Krebs estimated that the development of a vaccine for cattle
would take fifteen years and success cannot be guaranteed. Your
own MAFF staff predict effective vaccination programmes are 15-20
years away.
(7) Compensation to Farmers for reactor cows has been paid
at 75 per cent of their market value
The market value is a variable amount with a current maximum
of £555 and based on average sales from a number of sample
cattle auction markets. No compensation is paid for consequential
loss.
(8) The public, conservationist and animal welfare groups
are concerned about the methods used for widespread culling of
badgers.
It has been accepted that gassing with Hydrogen Cyanide is
an inhumane and unacceptable method of culling of badgers. Gassing
has now been replaced by live trapping.
Animal welfare groups such as the RSPCA and National Federation
Badger Groups (NFBG) are strongly opposed to the use of snares
or the killing of lactating sows. The Wildlife and Countryside
Act 1981 prohibits self-locking snares for the killing or taking
of any wild animal.
OPINIONS
(1) Europe & Bovine TB
There is now a danger that the incidence of Bovine TB in
some areas threatens their health status.
It is anticipated that with the reduction of BSE the beef
export ban will soon be lifted. However, some veterinarians believe
that there is a possibility that this ban could be re-imposed
on meat and milk products on account of the incidence of Bovine
TB in the UK. Many herds will become unable to export cattle because
the herd is under movement restrictions because of local TB breakdowns.
(2) Krebs Experiments
The badger and welfare groups have reservations about the
practicality of the proposed experiments. The NFBG oppose the
culling aspects of the experiment on the grounds that "it
is practically unworkable and ethically unacceptable and recommend
that it should be replaced by a trial to investigate husbandry
practices on farms".
Professor Stephen Harris from the University of Bristol argues
"that the experiments designed by Krebs serves no useful
purpose, that the logic behind the five-year experiment is flawed,
it is not practical and that the results are predictable. Illegal
killing of badgers in the `no control squares' will nullify the
results. He is in favour of a `one-off control operation'
by the proactive culling of badgers where there are pockets of
infection. The badgers left in the surrounding will be predominately
healthy and can be allowed to re-colonise the cleared areas".
The NFBG believe that "direct action may be taken
by members of the public to sabotage culling operations in hotspot
areas". There is concern by veterinarians that such direct
action could result in the release of infected badgers to other
parts of the country. The BVA and the NFU both argue strongly
that 5 years is too long to wait and a more rigorous culling of
badgers is needed now in the newly-affected areas.
(3) Compensation for farmers
The NFU and some welfare groups will welcome the change in
policy in that farmers will now receive 100 per cent compensation
for TB reactors but this should also take into account consequential
loss.
In confirmed breakdown herds, restrictions on the movement
of cattle onto and off infected premises can remain in force for
many months, in some cases they have done so for two and three
years. MAFF is, in effect by imposing movement restrictions, enforcing
the unlucky owners into severe financial loss by preventing normal
trading activity.
(4) Badger Numbers
There is concern from badger groups that changes in attitude
by farmers and landowners may bring about an increase in illegal
interference with badgers and their setts, and that the badger
numbers may already be in decline.
(5) Husbandry methods
There is considerable scepticism from farmers and vets about
the practical aspects and likelihood of success of the "simple
husbandry methods" advocated by Krebs which are aimed
at reducing the risk of infection by keeping cattle away from
badger setts, urination trails and latrines and keeping badgers
away from cattle feeding troughs and out of farm buildings.
These husbandry measures are unproven and now the subject
of industry funded research.
(6) Welfare Aspects
The use of snares is opposed by animal welfare groups as
they can cause horrific injuries and are an unacceptable risk
to other wildlife.
The killing of lactating females is opposed as it is not
acceptable to allow cubs to die from starvation or through infanticide
from other badgers.
Professor Harris believes that "culling can be planned
to avoid the killing of lactating badgers. Each pocket of infection
can be surveyed from January to June, trapping can commence in
July and be completed by the end of December, thus avoiding the
breeding season".
Many people will be pleased at your decision that snares
are not to be used and that there will be a closed season from
1 February to 30 April each year to protect lactating sows.
There is a strong possibility that unless more positive action
is undertaken then the illegal killing of badgers outside the
hotspot areas will increase as farmers become desperate to protect
their livelihood.
TB is an unpleasant disease for both badgers and cattle,
its eradication would improve their welfare. We all want to save
the badger but they are not an endangered species. If the animal
carrying infection to cattle was a rat; would we have the same
dilemma over the future control measures of this outbreak?
(7) The Way Forward
Professor Harris argues "that proactive culling can
be highly successful in reducing TB in cattle and badger and the
reduction of herd breakdowns is both dramatic and potentially
long lived".
Krebs refers to four large-scale clearances by culling of
badgers which have been carried out at Thornbury, Avon, Steeple
Leaze in Dorset, Hartland Peninsular in North Devon and East Offaly
in the Irish Republic. In each case clearance was followed by
a marked reduction in the incidence of TB in cattle but these
were not conducted as a "scientific experiment".
Can we afford to wait five years for the Krebs experiments
to be completed? Are these experiments likely to produce meaningful
results? Can we afford to carry out these experiments? Or should
the money be spent for better use?
Resources are limited and yet you are seemingly going ahead
with the duplication of earlier working in the UK and currently
in progress in Ireland. The more pragmatic might view this as
a scientific prevarication. To reprove the already proven will
not help control TB in the national herd, which is now virtually
out of control and is requiring very significant additional finance
to deal with outbreaks and routine testing in high risk areas.
A major culling campaign focussing on the newly affected
areas as well as the hot-spot areas of this trial could bring
about the reduction of TB in badgers and at the same time the
number of cattle herd breakdowns, although this will increase
the number of badgers killed in the short term, it has a better
chance of controlling the bovine TB outbreak and will be beneficial
to the welfare of both badgers and cattle in the long term. This
is the hub of the problem and must be addressed now.
Professor Krebs recommends work to be carried out in developing
a vaccine for cattle, an approach which offers the best long term
approach to this problem. Surely this is an area where as much
resources as possible should be invested. At the same time work
should continue on the development of a badger vaccine as a means
of reducing the transmission of the disease in badgers.
This is a highly complex and emotive issue. You have difficult
and unpopular decisions to make and I look forward to your response.
John Gripper BSc MRCVS
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