Signs of Worms in Icelandic Sheep

Icelandic sheep are medium-size bovids and among the oldest species of sheep in the world. They produce excellent wool and milk, making them a popular choice for sheep farmers. Like most mammals, sheep are susceptible to worms. Most parasitic infections cause intestinal problems and are not life-threatening, unless left untreated. To treat worms in their sheep, owners must know what symptoms to look for.

  1. Anemia

    • The barber pole worm is a common sheep parasite. It feeds on the sheep's blood, which can cause anemia. Symptoms of anemia in sheep include pale mucous membranes, especially around the eyes. A healthy sheep's eyes are red or pink. Icelandic sheep are increasingly being afflicted by a strain of barber pole worm that is resistant to traditional de-worming treatments, so it's important to consult your veterinarian at the first sign of infection. In other ways, however, Icelandic sheep are afflicted by the same parasites, and in the same ways, as other sheep.

    Wool Condition

    • Any change in the quality or condition of a sheep's wool is cause for concern, particularly if there have been no other environmental changes. Worms can cause wool to become coarse and brittle or fine and sparse. Contact your veterinarian and request a fecal sample to check for worms if your sheep's wool has changed. Unlike some other sheep, Icelandic sheep are dual-coated, which means they have a long outercoat and a fluffy undercoat. Owners may miss changes in the undercoat at first, so periodically check your sheep's undercoat for any changes.

    Lethargy

    • Worms inhibit a sheep's ability to get nutrients from food. Consequently, Icelandic sheep who are getting plenty to eat may be extraordinarily malnourished if they have a parasite infestation. Weakness and lethargy are symptoms of worms and a sheep who displays these symptoms needs to be checked by a veterinarian. Icelandic sheep are highly social and are also very attentive parents. A ewe who is not properly tending to her lambs is likely sick.

    Weight Loss

    • Worms may destroy a sheep's appetite, resulting in rapid weight loss. Conversely, a sheep who is consuming a normal amount of food may suddenly begin losing weight because the worms are taking all of the nutritional value from the food. Monitor your Icelandic sheep's weight as a part of your monthly care regimen and consult your vet if your sheep starts losing weight.

    Intestinal Problems

    • Many worms affect a sheep's digestive tract, interfering with normal digestion. Frequent digestive problems almost always indicate a worm infestation. If your sheep has diarrhea for more than a day or two, it may have worms. Increased defecation and a change in stool color or consistency are also causes for concern.