HC Deb 06 January 2004 vol 416 cc250-2W
Mr. Paterson

To ask the Secretary of State for Environment, Food and Rural Affairs what assessment has been made of whether badgers infected by TB may excrete urine from which viable m. bovis bacilli may be isolated; what the typical quantities per millilitre are; and whether such levels are capable of causing infection in cattle through(a) contamination of feed and (b) other mechanisms.[144445]

Mr. Bradshaw

Some badgers develop TB infection in the kidneys 37 per cent. of infected badgers sampled post mortem between 1971 and 1978 m. bovis was isolated from the kidneys and may excrete m. bovis bacilli in urine. Urine is typically left in trails up to a metre or more in length and may be focussed at a latrine, or distributed more randomly as the badger forages. Concentrations of up to 300,000 bacilli per ml of badger urine have been reported and experimental nasal inoculation of cattle suggests that, at this concentration of viable microbes, less than 0.03 ml would need to be inhaled by cattle in order to promote slow infection.

Investigations into infection of cattle from feed and other sources contaminated with infected badger urine are lacking. However, risk of infection to cattle by infected badger urine on cattle feed would be a function of the survival of the microbe in the feed (which is dependent on, for example, duration since excretion, moisture content of the environment, exposure to UV rays) the number of microbes consumed by the cattle and the method of consumption (i.e. ingestion or inhalation). I am unaware of measurements of m. bovis survival in cattle feed but the environment inside farm buildings is generally considered to be conducive to longer periods of survival than at pasture, where m. bovis in badger urine has survived for three days in summer and 28 days in winter.

Cattle appear less able to detect badger urine than faeces at pasture away from latrines. In addition, patches contaminated with urine detected by cattle appear to be sniffed more than those contaminated with faeces. Furthermore, some cattle do not select against latrines and freely graze over them. Therefore, potential sources of risk of cattle contact with infected badger urine include the ingestion of contaminated feed from feed stores or in troughs; investigation/grazing at and around latrines; and the investigation/grazing of contaminated pasture.

Mr. Paterson

To ask the Secretary of State for Environment, Food and Rural Affairs what controls there are on the movement of wild badgers, for relocation elsewhere, with particular reference to Krebs trapping areas.[144446]

Mr. Bradshaw

Badgers are a protected species and it is an offence to take (or attempt to take) a badger from the wild, including for the purpose of relocation elsewhere (Protection of Badgers Act 1992, s.1(1)). A person guilty of this offence is liable on summary conviction to imprisonment for up to six months and/or a fine of up to £5,000.

There are certain exceptions to this offence, two of which are specifically relevant to the issue of relocating badgers. These are the treatment of injured or sick badgers, and relocations licensed by the appropriate statutory conservation agency or agricultural department (English Nature and Defra, respectively, in England).

Under section 6, a person is not guilty of an offence by reason only of: (a) taking or attempting to take a badger which has been disabled otherwise than by this act and is taken or to be taken solely for the purpose of tending it". As a native species, there are no specific restrictions under current law regulating where badgers are released once they have recovered. Normally, once fit enough to be released into the wild, the badger will be returned to the location where it was originally found. This approach is recommended on welfare grounds due to their territorial nature, and also to avoid any risk of transmitting disease. However, there are situations in which this course of action may not be feasible (particularly in the case of orphaned cubs).

There is a voluntary code of practice covering the rehabilitation and release of badgers, and this has a precautionary approach aimed at minimising the risk of transmitting bovine tuberculosis (TB). All badgers to be relocated are tested for TB three times. Only animals testing negative to all three tests are released and any animal testing positive is euthanased. The code also requires that all released badgers are permanently marked (by a tattoo or microchip) and registered. The code is available via the internet at: http://www. badger.org. uk/action/badger-rehabilitation-protocolcontents.html

Under section 10 of the Act, licences may be issued to permit badgers to be taken from the wild (and relocated if necessary) for a limited range of specified purposes, including scientific investigation, preventing the spread of disease, and preventing serious damage to property.

Relocating badgers is only permitted where there is considered to be a very low risk of transmitting TB, and before any badgers are released at a new location all animals are tested three times for the disease. All badgers testing positive to any of the three tests, or in contact with a badger testing positive, are euthanased.

Badgers are not relocated as part of the Randomised Badger Culling Trial (the so-called Kreb's trial), and the Independent Scientific Group on Cattle TB have advised that are no special arrangements relating to the relocation of badgers in trial areas.