Presentation given by Dr Chris Heislers of http://thevetsurgery.com.au/ given at the International Large Animal Rescue Conference, University of Adelaide, Roseworthy, South Australia http://www.horsesa.asn.au/home/emergency/large-animal-rescue/
9. What we learnt...
Horses cope well, heal well.
The reactive flight response of horses is protective.
ā¢
Horses left in large paddocks with low pasture and
vegetation cope best.
ā¢
Ultimate severity of burns is unpredictable from
initial presentation, and may not be apparent until up
to eight weeks later.
ā¢
Compared with stable fires, respiratory effects are
minimal.
ā¢
Even with extensive full thickness burns, secondary
effects including severe infection, dehydration and
renal failure are relatively uncommon.
ā¢
Severe coronary band damage is generally reversible.
ā¢
Basic principles of wound management applied to
burns yields good results.
ā¢
ie. First principles and common sense.
Long term behavioural impacts??
ā¢
10.
11. What we learnt...
The reactive flight response of horses is protective.
ā¢
Horses cope well, heal well.
ā¢
Horses left in large paddocks with low pasture and vegetation cope best.
ā¢
Basic principles of wound management applied to
burns yields good results.
ie. First principles and common sense.
Even with extensive full thickness burns, secondary effects
including severe infection, dehydration and renal failure
are relatively uncommon.
ā¢
ā¢
Ultimate severity of burns is unpredictable from initial
presentation, and may not be apparent until up to eight
weeks later.
ā¢
ā¢
Severe coronary band damage is generally reversible.
Compared with stable fires, respiratory effects are minimal.
ā¢
Long term behavioural impacts??
12. Recommendations to
regulators...
That animal welfare becomes a priority.
ā¢
A coordinated animal welfare response must be a
principal part of emergency responses.
ā¢
A veterinarian experienced with that species be
present or consulted prior to destruction of any
livestock or companion animal.
DPI be responsible for any ālargeā animal emergency
animal response and to take responsibility for coordinating
responses to all farm animals including all horses.
ā¢
ā¢
ā¢
ā¢
That radio services place as an important priority
attempts to convey important animal welfare / first aid
advice from local veterinarians.
ā¢
That DPI consult with veterinarians to develop an
effective emergency response plan.
To facilitate an emergency response, DPI should utilise
established local expertise.
A single point of contact for all owners, donors and service
providers be provided and well advertised animal welfare / first ai
advice from local veterinarians.
13. Whatās changed?
āThe Emergency Management Act does not address
animal welfare...
āThere does not appear to be a coordinated approach to
animal welfare during relief operations. Improving
agency coordination would help to provide more
effective relief to all animals regardless of whether they
are wildlife, stock, companion animals or pets.ā
RECOMMENDATION 10.5
Victoria Police, in consultation with CFA and DSE,
review the guidelines for the operation of roadblocks
during bushfires, including how to:
Are we any better off?
14. In south-east Australia, the frequency of very
high and extreme fire danger days is expected
to rise by 15-70 per cent by 2050. The fire
season is expected to lengthen.
2012 IPCC Special Report for Managing the Risks of Extreme Events and Disasters to Advance
Climate Change Adaptation
15. The Emergency Management Act does not address animal welfare. The Emergency Management Manual Victoria also does not specifically address animal welfare after bushfire
under the State Emergency Recovery Arrangements. Under Part 7, which sets out the āEmergency Management Agency Rolesā, DPI is nominated as the primary agency for support
services for animal welfare and the RSPCA and DSE are secondary agencies.
The RSPCA estimated that over 1 million animals were killed in the fires. The most common injuries to animals were from wounds sustained while escaping the fires, burns and
smoke inhalation.166 The Victorian Association of Forest Industries estimated that millions of native animals and birds were killed, either during the fires or from starvation or predation
after the fires.167
The Department of Primary Industries manages large-scale immediate rural recovery including animal welfare services. DPI identified animal welfare as a high priority after the fires
and sought additional resources from interstate to assist with the inspection of properties. They assessed 4,700 properties for losses and estimated that more than 8,000 farm animals
were killed, either directly by the fires or euthanased. 168
There does not appear to be a coordinated approach to animal welfare during relief operations. Improving agency coordination would help to provide more effective relief to all
animals regardless of whether they are wildlife, stock, companion animals or pets. REPORT 17 August 2009:
RECOMMENDATION 10.5
Victoria Police, in consultation with CFA and DSE, review the guidelines for the operation of roadblocks during bushfires, including how to:
ā¢
formulate the terms of a discretion to police on roadblocks to allow entry to:
ā
residents returning to their homes;
ā
people delivering relief and aid to residents and to animals;
ā
essential services crews; and
ā¢
expedite the exercise of the discretion in favour of persons able to establish their bona fides.
16. EXPERIENCES WITH HORSES AFFECTED BY THE BUSHFIRES IN VICTORIA, FEBRUARY 2009
Suzanne Craddock, Chris Heislers & Andrew Lynch (Yarrambat Veterinary Hospital), Maxine Brain (Kilmore Equine Hospital).
Parts of Victoria were devastated by bushfires on 7th February 2009. Along with the human and property losses, there was a massive toll on
local animals. Many affected horses were in areas serviced by our practices. This presentation outlines the clinical symptoms observed, the
progression of those symptoms, the responses to treatment and the outcomes.
Approximately 100 horses were seen in the days and weeks following the fires, these being largely from paddock situations in semi cleared
regions. Many horses died or were euthanased by council rangers before our access to the affected areas. Presentations included burns
(mainly to the lower half of the body and face), respiratory conditions (from heat, smoke or ash), dehydration, laminitis and renal failure. The
degree of burn injury was sometimes not fully apparent until days, weeks, even months after the fires. This included superficial to full thickness
skin loss, coronet separation, deep muscle necrosis, tendon sloughing and joint breakdown. Many severe burns resulted from radiant heat rather
than from direct burns. Treatment regimes were aimed at pain relief, wound management and supportive care, sometimes for prolonged periods.
Pain relief was generally by systemic NSAIDs however systemic opioids, ketamine constant rate infusion and opioid epidurals were sometimes
used. Wound management generally was by antibacterial treatment, wound debridement, wound creams, bandaging where possible and
restriction of movement when appropriate. In the early stages oral fluids were mostly adequate for hydration.
Based on client information and the post fire environment, we have been unable to definitively explain the survival of some horses compared to
others, or of the range of severity of burns to animals in seemingly similar circumstances. It is assumed that the degree of tissue sloughing was
related to the length of time of exposure and the temperatures during that exposure. It would appear that horses generally had some form of
positive instinctive behavioural responses that helped with their survival.
We found that commitment to intensive nursing care is paramount to treating severe burns cases. This commitment generally gave a favorable
outcome. Deep coronet damage will generally heal after severe burns. High doses of NSAIDās in conjunction with gastric protectants will be
tolerated for prolonged periods in these circumstances. Wound care principles can be successfully followed in these cases, but the full extent of
tissue damage is difficult to evaluate in the initial stages.