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Sheuneni Kurasha
Farmer’s Diary
This week’s instalment focuses on handling abscesses in small ruminants, specifically goats and sheep.
It outlines the symptoms, prevention strategies, and treatment options for managing abscesses, while emphasising practical measures for livestock farmers to maintain the health and productivity of their herds.
Understanding abscesses
An abscess is essentially a pocket of pus that forms under the skin because of a bacterial infection.
Abscesses are common health concerns, particularly in regions where livestock frequently encounter environmental challenges such as thorns, ticks, and poor hygiene conditions.
Abscesses in goats and sheep are typically characterised by localised swellings that may be hot, red and painful to the touch.
These swellings result from the body’s immune response to a bacterial infection, which usually occurs when bacteria enter through breaks in the skin, such as those caused by thorns, cuts, or tick bites.
Once inside, the bacteria multiply, leading to the formation of pus and subsequent swelling. An abscess often presents as a swelling that gradually enlarges over time.
As the infection progresses, the abscess becomes softer and may develop a yellow spot at its centre indicating that it is ready to be drained.
In some cases, abscesses may occur in internal organs, which can be more challenging to diagnose and may require professional veterinary intervention.
The most common bacteria responsible for abscesses in goats and sheep are Corynebacterium pseudotuberculosis and Staphylococcus species.
These pathogens thrive in environments with poor hygiene, overcrowding, and high tick infestations, making the prevention and management of abscesses a crucial aspect of livestock care.
Prevention strategies
Preventing abscesses in goats and sheep involves managing several risk factors, primarily focusing on maintaining high standards of hygiene and controlling tick populations.
Control tick infestations
Ticks are one of the primary culprits behind abscesses, as they create entry points for bacteria.
Regular tick control measures, such as the application of acaricides (tick-killing chemicals), are essential to reduce tick populations and minimise the risk of infection.
Farmers should routinely inspect their animals for ticks, paying particular attention to areas where the skin is thinner, such as around the ears and under the legs.
Maintain good hygiene
Maintaining a clean environment for goats and sheep is fundamental to preventing infections. Regular cleaning and disinfection of housing, feeding areas, and water troughs can significantly reduce the bacterial load in the environment.
Farmers should also practise proper waste disposal methods to minimise the spread of bacteria and maintain a healthy living space for their livestock.
Avoid injuries
Preventing injuries is critical in reducing the risk of infections that lead to abscesses.
Limiting exposure to sharp objects, such as thorns and wire fencing, helps prevent wounds that could become infected. Providing adequate space for the animals and preventing overcrowding can also reduce the likelihood of them injuring each other.
Cull animals with recurrent abscesses
If an animal develops several severe abscesses or frequently suffers from abscesses, it may be necessary to cull it from the herd.
This practice reduces the risk of spreading the infection to other animals and helps maintain the overall health and productivity of the herd.
Treatment of abscesses
Once an abscess is identified, prompt treatment is necessary to prevent the spread of infection and to promote recovery. The following steps outline the recommended treatment procedure for abscesses in goats and sheep:
(i) Open and drain the abscess
When an abscess develops a yellow spot or becomes soft, it is ready to be drained. Using a sterile, boiled razor blade, make a cross-shaped incision over the soft spot to release the pus. This procedure should be performed in a clean environment to avoid introducing new infections.
(ii) Flush the wound
After draining the abscess, flush the wound thoroughly with a saline solution (made by dissolving one tablespoon of salt in a cup of boiled water) or iodine.
This step helps to remove any remaining bacteria and pus from the wound. Use a syringe to gently irrigate the wound, ensuring that the solution reaches all parts of the abscess cavity.
(iii) Maintain wound hygiene
Spray the wound daily with a wound aerosol and prevent reinfection.
The wound should remain open to allow for continuous drainage of pus and should be flushed daily with warm salt water. This process should continue until the abscess is completely healed and no further pus is discharged.
(iv) Use antibiotics
If the abscess is particularly severe or the animal is not recovering as expected, an injection of antibiotics may be necessary. It is advisable to consult a veterinarian to determine the appropriate type and dosage of antibiotics to use. Antibiotics can help control the bacterial infection and speed up the recovery process.
(v) Practise safety measures
Always wear gloves when handling abscesses to prevent the transmission of bacteria to humans or other animals. All materials used to clean the wound, such as gauze or cloth, should be buried or burned to prevent contamination of the environment.
(vi) Sterilise equipment
To prevent the spread of infection, it is crucial to sterilise all equipment used in the treatment process. Boil the razor blade or any other tool before and after use to ensure that it is free from bacteria.
As mentioned earlier, if a goat or sheep develops multiple severe abscesses or frequently suffers from abscesses despite proper treatment and preventive measures, culling may be necessary.
Persistent abscesses can indicate a chronic underlying health issue, which can pose a risk to the rest of the herd. Culling helps to maintain a healthy herd by removing animals that are potential carriers of bacteria.
In addition to direct treatment and preventive measures, maintaining good overall herd health is crucial in preventing abscesses and other diseases.
Proper nutrition strengthens the immune system of goats and sheep, making them less susceptible to infections. A balanced diet rich in essential nutrients, including proteins, vitamins, and minerals, helps in faster wound healing and recovery from infections.
Farmers should also consider implementing a regular de-worming schedule and vaccinations to reduce the overall disease burden on their animals. Healthy animals are less likely to suffer from abscesses and other infections, contributing to improved productivity and reduced veterinary costs.
Conclusion
Abscesses in goats and sheep, though common, can be effectively managed with prompt treatment, good hygiene practices, and preventive measures. Livestock farmers should take proactive steps to prevent infections, control risk factors, and ensure the well-being of their herds. Regular inspections, effective tick control, proper wound management, and maintaining a clean environment are essential components of a comprehensive strategy to manage abscesses. In cases of severe or recurrent abscesses, culling may be necessary to protect the overall health of the herd.
Sheuneni Kurasha is the managing director of Chivara Farm, a diversified farming operation, which specialises in stud breeding for small livestock (Boer goats, Kalahari Red goats, Savanna goats, dairy goats (Saanen and Toggenburg), Damara sheep and Meatmaster sheep) as well as Boran cattle. For feedback, kindly get in touch on email: [email protected]; X: @chivarafarm or WhatsApp: +263 77 2874 523.
Online Reporter