Many farmers wrongly believe routine foot-trimming helps control lameness and promotes better mobility.\u00a0But it can actually spread bacteria and exacerbate lameness prevalence within flocks. This is also true of foot-bathing, unless it is carried out correctly. Below we get advice on how to ensure your foot-bathing protocol is effective and find out why foot-trimming is only appropriate in certain circumstances.<\/p>\n
Disinfection not a cure
\nFoot-bathing has its place when trying to manage scald, especially in lambs and ewes with lambs at foot. However, it is not a cure and could potentially cause more harm than good if it is done badly. Foot-bathing should be thought of as a method of disinfection, especially when sheep have been gathered in a small area following shearing or scanning, for example.\u00a0Gathering sheep creates an increased risk of infection, but sometimes it is unavoidable. When you have a group of sheep in a confined area, you should run them through a foot-bath post-gathering. However, don\u2019t gather sheep just to foot-bath them, as you are increasing their risk of infection.<\/p>\n
Ewes with clinical foot-rot or contagious ovine digital dermatitis (CODD) need systemic treatment instead of foot-bathing. Using formalin on ewes with CODD can be very painful due to exposed soft tissue.<\/p>\n
Choose a chemical you can use well
\nThere is not a vast amount of evidence comparing different agents. The most important thing is to choose a chemical you can use well. For example, if you are using a 10% zinc sulphate solution to manage foot-rot, sheep need to stand in the product for up to 30 minutes for it to be effective.\u00a0If you are unable to do this, then you would be better off using a product they can walk through, such as a 3% formalin solution.\u00a0There is no point using a standing product as a walk-through, as you are simply wasting your money. Antibiotic foot-baths should not be used. Instead, it is better to target systemic antibiotics treatment in infected animals preventing treatment of healthy animals and mitigating any concerns of bath disposal.<\/p>\n
Use the chemicals correctly
\nDilution rate:\u00a0Know the volume of your foot-bath so you can work out the correct dilution for the product you are using. If you are not sure how to do this, your animal health adviser, Suitably Qualified Person (SQP) or vet can help. If it is too diluted it will not be effective, but if the solution is too concentrated it can cause painful burns, especially with formalin.<\/p>\n
Muddy feet:\u00a0Some products are inactivated when they meet organic material such as the mud on sheep\u2019s feet. If you are soiling the foot-bath and rendering the chemical inactive, you are creating a \u201cbacterial soup\u201d and it may exacerbate things.\u00a0To overcome this, you can use a freshwater foot-bath before the chemical foot-bath to get rid of any organic material. Some people use straw in the bottom of a foot-bath or a mat to encourage lambs to go through. Again, these may inactivate the chemical and undo its value.<\/p>\n
Allow enough standing time post bathing
\nMost chemicals need to dry for them to be effective. This means leaving sheep\u2019s feet to dry for at least 20 minutes on a hard, concrete standing before returning to grass. This can be very hard to operate, but if you don\u2019t do this, you may be wasting the chemical on the pasture.<\/p>\n
Refilling the\u00a0foot-bath
\nThe frequency of change will vary depending on the product, size of foot-bath and how many sheep are being treated. Always refer to the product data sheet.<\/p>\n
Health and safety and disposal
\nThere are acknowledged health and safety risks with formalin, with concerns about potential carcinogenic properties. It\u2019s important you are aware of the health and safety risks of the chemical; wear correct personal protective equipment and use the products in a well-ventilated space.<\/p>\n","protected":false},"excerpt":{"rendered":"
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