The Importance of Controlling Sheep Scab: An Overview

FREEASKDOCTOR.COM The Importance of Controlling Sheep Scab: An Overview – Sheep scab, also known as Psoroptic mange, is a highly contagious and debilitating skin disease affecting sheep. It’s caused by the ectoparasitic mite Psoroptes ovis. This article delves into the significance of controlling sheep scab and discusses various preventative and treatment measures.

Why is Controlling Sheep Scab Crucial?

Controlling sheep scab is essential due to the following reasons:

  • Animal welfare: Affected sheep experience severe itching, causing distress and pain.
  • Financial losses: Infected sheep suffer from reduced weight gain, wool loss, and even death, leading to economic losses for farmers.
  • Disease spread: Sheep scab is highly contagious, and failure to control it can result in rapid spread across the flock and neighboring farms.
  • Regulations: In many countries, sheep scab is a notifiable disease, and failure to report or control it can lead to legal penalties.

Identifying Sheep Scab

Early detection is crucial to control the disease effectively. Symptoms to look out for include:

  • Intense itching and rubbing against objects
  • Wool loss and skin lesions
  • Formation of scabs and thickened skin
  • Restlessness and weight loss

Prevention and Control Measures


Implementing biosecurity measures can help prevent the introduction and spread of sheep scab:

  • Quarantine new animals for at least 14 days before introducing them to the flock.
  • Ensure proper fencing to avoid contact with neighboring flocks.
  • Keep shared equipment clean and disinfected.

Regular Monitoring

Regularly inspect your flock for signs of sheep scab:

  • Check for signs of itching, wool loss, or skin lesions.
  • Monitor for changes in behavior or weight loss.


If you suspect sheep scab in your flock, consult a veterinarian immediately. They may recommend treatments such as:

  • Injectable treatments: Ivermectin, doramectin, and moxidectin can be administered via injection to treat sheep scab.
  • Pour-on treatments: Products containing deltamethrin or flumethrin can be applied directly to the animal’s skin.

Note: It’s essential to follow the recommended treatment protocols and withdrawal periods to ensure effective control and food safety.


Currently, there is no commercially available vaccine for sheep scab. However, ongoing research may result in the development of a vaccine in the future.

Legal Requirements

Sheep scab is a notifiable disease in many countries. Familiarize yourself with local regulations and reporting requirements to ensure compliance.

Controlling sheep scab is vital for the well-being of your flock and the financial success of your farm. By implementing biosecurity measures, regularly monitoring your flock, and seeking prompt treatment when necessary, you can minimize the impact of this disease on your sheep and your livelihood.


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