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Beyond the Bale : June 2016
42 ON FARM An additional baiting option for reducing wild dog and fox numbers is now available to woolgrowers and other landholders across Australia. Para-aminopropiophenone (PAPP) is a new chemical (toxin) that is now being manufactured and sold in baits by Animal Control Technologies Australia Pty Ltd (ACTA) under the product names DOGABAIT for wild dog control and FOXECUTE® for fox control. Once the bait is eaten and the PAPP is absorbed into the bloodstream, it is converted to a secondary compound that stops effective oxygen transport to the heart and brain. This occurs in wild dogs and foxes more readily than in most other animals. The affected wild dogs and foxes become lethargic and sleepy before quickly becoming unresponsive and dying. The doses of PAPP in baits have been optimised so unconsciousness generally occurs within 60 minutes of bait ingestion, and death occurs up to an hour later. Poisoned animals do not exhibit signs of pain or distress. AWI On-farm Program Manager Ian Evans says this new control tool is the result of a major investment in R&D by AWI, the Australian government through the Invasive Animals CRC, and ACTA. “The new baits are an example of how woolgrowers’ and other industry R&D funds have been used collaboratively with a commercial provider to bring a product through to market,” he said. Field trials of PAPP consistently demonstrated that target animal populations were reduced by more than 70 per cent under operational conditions with good baiting procedures and have the potential to control all wild dogs and foxes in the control area if programs are run thoroughly. “However, PAPP is not a silver bullet,” Mr Evans cautioned. “It is an additional control method – along with 1080 baiting, trapping, fencing and shooting – that woolgrowers have the option of choosing. The success of control also relies on a co-ordinated effort of all landholders working co-operatively with government wild dog controllers. “As with other control techniques, PAPP has its limitations but the addition of a new control tool will allow greater flexibility and strategic management of pests across a much broader range of landscapes.” PAPP COMPLEMENTS 1080 Since PAPP is lethal to wild dogs and foxes, it is also highly toxic to all working and domestic dogs, depending on the dose ingested. “If a working or domestic dog eats just one wild dog bait, it will die unless treated. This means that the distribution of PAPP baits requires careful consideration. The PAPP dose in fox baits is less, meaning an average- sized working dog will be less affected after eating fox bait(s) but treatment should still be sought immediately,” Mr Evans said. “The good news is there an antidote for PAPP. The chemical methylene blue, ‘Blue Heeler’, immediately reverses the effects of PAPP poisoning, with full recovery usually occurring within one hour.” However at present, due to the need for intravenous administration, methylene blue can only be purchased and administered by a veterinarian. As PAPP acts quickly, it will be imperative to intervene as quickly as possible in an emergency. This means that it might not be possible to get the affected dog to a veterinarian quickly enough in remote areas. It is strongly recommended to use muzzles Baits containing a new toxin – known as PAPP – are now commercially available to landholders across the country. This is another tool in a range of options that woolgrowers can use to combat wild dogs and foxes. PAPP was developed with funding support from AWI. FOR WILD DOG AND FOX CONTROL NEW BAITING OPTION Wild dog photographed with a night camera. PHOTO: NSW Office of Environment and Heritage
In the Shops - September 2016