Review on Control of Haemonchus Contortus in Sheep and Goat - Abstract
Small ruminant livestock, such as sheep and goats, are extremely susceptible to internal Parasites, especially gastrointestinal nematodes. Haemonchus contortus is a highly pathogenic, blood-feeding nematode of small ruminants and a significant cause
of mortalities worldwide. Haemonchosis is a particularly significant threat in tropical, subtropical and warm temperate regions, where warm and moist conditions favors the free-living stages, but periodic outbreaks occur more widely during periods of
transient environmental favorability. Barber’s pole worm is singly the most important of all the gastrointestinal nematodes that affect the survival and productivity of shoat owned by rural poor farmers in the developing world. Barber’s pole worm which
is called Haemonchus contortus by its scientific name is highly pathogenic blood sucking parasite. Haemonchus contortus is highly pathogenic blood sucking parasite. Haemonchosis caused by Haemonchus contortus is a predominant, highly pathogenic and economically important disease of sheep and goats. Contortus is active mainly in warm, humid climates in the summer months. High levels of prevalence, intensity and abundance of these parasites were generally observed around the middle of the two rain seasons, with peaks occurring in May and September of the year. There are number of factors such as poor nutrition, concurrent disease, stress, overstocking, or pregnancy/lactation can cause a loss of immunity to parasites. Haemonchosis can be diagnosed based up on the characteristic clinical sign of anemia, Submandibular edema, weight loss, and ill thrift along with finding large numbers of eggs in the feces. It causes great loss in sheep and goat farm. To prevent this problem the owner or farmer and veterinarian should work effectively. They should be prevent pasture contamination on larval stage in early spring via timely and planned treatment strategies, rotate different doses of drugs on animal basis, avoid under dosing antihelminthic, utilize safe pasture treatment and move shames.