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Assessing Cattle after a Bushfire | AG13701 |
This agriculture note describes how fire may affect cattle and how landholders can deal with the situation.
Please note the images on these pages may be disturbing to some viewers. |
PDF 645KB |
Introduction
Cattle are common victims of bushfires in Victoria. Often large numbers are affected when left in paddocks with a high fuel load such as dry grass. Cattle are generally less affected by fires than sheep because of their superior height and speed but they can be severely burnt if trapped (eg by a fence). Cat-tle may sometimes outrun a fire front, but suffer substantial burns to the feet and legs when crossing recently burnt ground. It is important to be aware that emotions can run high during and after a bushfire. It is critical to seek profes-sional animal health and welfare advice to support sound decision making.
Initially
After a fire, teams from the DPI are assigned properties to assess the damage sustained. The priority is to deal with animal welfare needs and refer any human welfare concerns to the appropriate agency. The initial concern will be to as-sess livestock and destroy those that are suffering.
The decision to destroy livestock should only be made on the grounds that the stock are too severely burnt to survive or that it would be inhumane to keep them alive.
Animals can be divided into four groups:
| 1. | For immediate slaughter |
| 2. | For salvage by slaughter at an abattoir or knackery (if practical) |
| 3. | Keep and nurse |
| 4. | No further action |
In addition to injuries suffered by the animals themselves, other issues for consideration include:
- Availability of feed and water
- The owner’s ability to provide necessary care and attention
- Insurance arrangements
- Prognosis for future productive and reproductive performance
Category 1: Destroy Immediately
Some stock will be able to walk at this stage, so must be yarded for adequate individual inspection. Areas on the ani-mals that will need inspection include the head, legs, inside the shoulders and thighs, and around the tail. The vulva and udder of female stock and the sheath and scrotum of males will need careful inspection. In females, burns to the udder and teats are common but not generally sufficient to warrant destruction unless associated with other areas of burn. Most will survive even if the function of the udder is lost. Cattle with suckling calves must have the teats checked.
Animals for destruction at this stage include those with:
- Severe burns to more than 15% of the body where areas of skin have been destroyed, making it split and slough away.
- Extensive damage to legs and feet with swelling of the legs and the skin dry and leathery in appearance. If hooves are coming away the animal must be destroyed as it will be walking directly on the pedal bone causing considerable pain.
- Severe burns to the face and eyes. The surface of the eye, the cornea, will take several weeks to heal. If the animal cannot see or has damaged lips or nose causing breathing difficulties, it should be destroyed.
- Injuries that could become infected. Pneumonia and local tissue infection can develop and become severe, ex-tensive and uneconomic to treat.
Category 2: Salvage Slaughter (if practical)
Animals that are not destroyed in the first instance will be revisited after some days to reassess their welfare and viabil-ity.
Cows with moderate burns to teats and udders are best sal-vaged by slaughter. Where this is not a practical option, ud-ders with burnt teats should be dried off and teats re-inspected after three to four weeks to assess functioning of the teat opening.
Category 3: Keep and Nurse
Mobile and alert animals with only moderate burns to less than 10-15% of their body are generally good candidates for retention, provided that suitable facilities, labor, fresh water and feed are readily available. Treatment and recovery is likely to be long and arduous, with no guarantee of success. Cattle should be inspected daily, and those seen to be deterio-rating must be humanely destroyed.
Consideration must be given to the following:
- A plan which may include advice from a veterinary sur-geon and possible drug therapy, eg antibiotics. There are cost considerations with this action.
- Suitable holding yards with a soft, even surface to facili-tate observation and treatment
| Figure 1. Burns to the scrotum requiring nursing and re-assessment after 7 days
Figure 2. Cow with badly burnt udder and legs requiring destruction.
Figure 3. Animal with separartion of the hooves at least 1 week after the fire and requiring destruction.
Figure 4. Burns to the sheath and scrotum, requiring nursing and re-assessment after 7 days. |
- Adequate supply of feed and ready access to water and shade. Burnt animals are reluctant to move and usually do not feed for a few days. They generally regain appe-tite after about a week, when they should be given high-protein feeds such as good lucerne or meadow hay, or green summer crops or lucerne, to aid healing.
- Daily attention for at least the first 10 days
- Be aware of the potential for flystrike both on burnt areas and on the feet.
- The sheath of male and castrated animals should be spe-cifically examined after about 4 days to remove any scabs that have formed and may be causing urinary ob-struction.
- Cows with calves at foot will need special attention. Burnt teats may mean the cow will reject a young calf which will die without some intervention.
Category 4: Animals without Apparent Damage
These are cattle that are apparently undamaged or have minor singeing of the hair and facial area but with sound feet. They should survive but must be re-assessed in 5-7 days. Particu-lar attention should be paid to breathing difficulties caused by smoke inhalation which may take some time to become evi-dent. Stock must be yarded to ensure adequate inspection.
Related Information
DPI Agnote – Assessing sheep after a bushfire
DPI Agnote - Disposing of carcases in response to bushfire, flood or drought
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Acknowledgements
This information is based on an Agriculture Note was developed by A J Winterbottom, Farm Services Victoria – Animal Health Field Services. December 2008.
The advice provided is intended as a source of information only. Always read the label before using any of the products mentioned. The State of Victoria and its employees do not guarantee that the publication is without flaw of any kind or is wholly appropriate for your particular purposes and therefore disclaims all liability for any error, loss or other consequence which may arise from you relying on any information in this publication.
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