Internal Parasites of Sheep and Goats
نویسندگان
چکیده
WHILE SHEEP, like other farm animals, suffer from various infectious and noiiinfectious diseases, the most serious losses, especially in farm flocks, are due to internal parasites. These losses result not so much from deaths from gross parasitism, although fatalities are not infrequent, as from loss of condition, unthriftiness, anemia, and other effects. Devastating and spectacular losses, such as were formerly caused among swine by hog cholera, among cattle by anthrax, and among horses by encephalomyelitis, seldom occur among sheep. Losses due to parasites are much less seni^ational, but they are constant, and especially in farai flocks they far exceed those due to bacterial diseases. They are difficult to evaluate, however, and do not as a rule receive the attention they deserve. The principal internal parasites of sheep and goats are roundworms, tapeworms, flukes, and protozoa. Their scientific and common names and their locations in the host are given in table 1. Another internal parasite of sheep, the sheep nasal fly, the grubs of which develop in the nasal pasisages and head sinuses, is discussed at the end of the article.
منابع مشابه
Observations on the Incidence, Epidemiology, Control and Economic Importance of Gastro-Intestinal Parasites of Sheep and Goats in Iran
متن کامل
Small Intestinal Helminth Parasites in Slaughtered Sheep and Goats in Hawassa, Southern Ethiopia
This study was carried out from November 2007 to March 2008 to identify the species and to determine the burden of small intestinal helminth parasites of sheep and goats slaughtered in Hawassa, southern Ethiopia. Intestines of 116 sheep and 71 goats were examined using standard procedures. Three species of parasites namely Trichostrongylus colubriformis, Bunostomum trigonocephalum and Moniezia ...
متن کاملPrevalence of intestinal and haemoprotozoan parasites of small ruminants in Tamil Nadu, India
AIM The aim of the present study is to assess the prevalence of intestinal and haemoprotozoan parasites of small ruminants (Sheep and Goats) in North Western part of Tamil Nadu, India. MATERIALS AND METHODS A total of 630 faecal samples (251-sheep, 379-goats) and 554 blood smears (242-sheep, 312-goats) were examined, for the presence of eggs of intestinal and haemoprotozoan parasites, respect...
متن کاملThe point prevalence of gastro-intestinal parasites in calves, sheep and goats in Magadi division, south-western Kenya.
Helminths cause great economic loss in livestock in Africa, and can be categorized as either direct or indirect losses. Arid and semi-arid lands (ASAL) in Kenya comprise 71% of total land area and harbour the largest population of cattle, sheep and goats. However, little information on the distribution and impact of gastro-intestinal (GIT) parasitism in these animals is available. This survey w...
متن کاملInfection levels of gastrointestinal parasites in sheep and goats in Papua New Guinea.
Gastrointestinal parasites of livestock cause diseases of important socio-economic concern worldwide. The present study investigated the prevalence of gastrointestinal parasites in sheep and goats in lowland and highland regions of Papua New Guinea (PNG). Faecal samples were collected from a total of 165 small ruminants (110 sheep and 55 goats) from February to April 2011. Analysis by a modifie...
متن کامل