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Oestrus ovis, the sheep bot fly, is a widespread species of fly of the genus Oestrus. It is known for its parasitic predation and damage to sheep, deer, goats and sometimes cattle. There have also been many records of horse, dog [1] and human infestation. In some areas of the world it is a significant pest which affects the agricultural economy.
The symptoms include neurological signs such as tremors and head pressing, respiratory signs such as coughing and nasal discharge, and systemic signs such as fever and loss of appetite. Physical examination may reveal petechiae of the mucous membranes, tachycardia, and muffled heart sounds. Heartwater can also cause reproductive and ...
Symptoms in domestic sheep can range from mild respiratory disease, severe pneumonia and even death. [1] Clinical and subclinical symptoms may be present in domestic sheep. Clinical symptoms may include fever, lethargy, decreased appetite, nasal discharge, coughing, and decreased milk production in ewes. [ 1 ]
Eye Ring. Bovine malignant catarrhal fever (BMCF) is a fatal lymphoproliferative disease [1] caused by a group of ruminant gamma herpes viruses including Alcelaphine gammaherpesvirus 1 (AlHV-1) [2] and Ovine gammaherpesvirus 2 (OvHV-2) [1] [3] These viruses cause unapparent infection in their reservoir hosts (sheep with OvHV-2 and wildebeest with AlHV-1), but are usually fatal in cattle and ...
enzootic nasal adenocarcinoma; foot-and-mouth disease; mastitis; Nairobi sheep disease orthonairovirus (NSDV) infection; orf, also known as contagious ecthyma, contagious pustular dermatitis, infectious labial dermatitis, thistle disease, sore mouth, or scabby mouth; ovine encephalomyelitis (louping ill) ovine progressive pneumonia (OPP)
Unless a concurrent lung infection is present, affected sheep continue to eat. [2] The only sign specific to OPA is a watery nasal discharge, consisting of lung fluid produced by the affected lung tissue; lifting the hind legs of the animal above the level of its head will cause large volumes of this fluid to flow from the nostrils.
Symptoms are similar to those of rinderpest in cattle and involves oral necrosis, mucopurulent nasal and ocular discharges, cough, pneumonia, and diarrhea, [11] though they vary according to the previous immune status of the sheep, the geographic location, the time of year, or if the infection is new or chronic. They also vary according to the ...
Symptoms of nasal adenocarcinoma are similar in both goats and sheep. They include weight loss, nasal discharge with the nasal fluid being viscous and containing pus. Tumors form in the upper nasal cavity and have a gelatinous consistency with caudal areas being having hemorrhage causing a brownish-red color. [4] Symptoms of enzootic nasal ...