3/31/2023 0 Comments Gid in sheep![]() ![]() The earliest documented record of coenurosis dates all the way back to 1600, when an increase in cases of gid was linked to an increase in the number of sheep, and resulted in a better understanding of the parasite and the disease. The characteristic clinical signs of the disease were most likely reported for the first time by Hippocrates (400–375 BC), who described an excess of fluid in the brain, and considered it to be a condition causing epilepsy in sheep and goats. Taenia multiceps (Leske 1780) (larval stage Coenurus cerebralis), often known as sturdy or gid, is a cestode that typically affects the central nervous system (CNS) of livestock, particularly the brain and spinal cord. The parasite is also zoonotic, and cases of coenurosis have been reported in humans with coenuri located in the brain, spinal cord and eyes. However, coenurosis can also be controlled effectively through preventative measures, such as anthelmintic treatment of dogs and the proper disposal of intermediate host carcasses. Surgery is considered the most effective method for the treatment of cerebral coenurosis in small ruminants, but is often not carried out because of the limited finances of many sheep and goat breeders. Additionally, use of anthelmintics during the parasite’s migration stages reduces the development of cysts in the sheep brain. A vaccine based on recombinant oncosphere antigens has proved to be an effective tool against T. The best diagnostic method for cerebral coenurosis involves the interpretation of clinical signs with accurate localization of the cyst using diagnostic imaging techniques. Non-cerebral coenurosis has been most commonly reported in goats. Acute coenurosis occurs as a result of oncospheres migrating through the CNS, while chronic coenurosis occurs as a consequence of the coenurus maturing, which causes displacement and pressure atrophy of brain tissue. The disease mostly affects young sheep and is referred to as either acute or chronic coenurosis. multiceps populations has revealed significant genetic variation and the presence of three major haplotypes. Molecular characterization using the mitochondrial genes cytochrome c oxidase subunit 1 and nicotinamide adenine dinucleotide dehydrogenase subunit 1 of different T. multiceps has a worldwide distribution and is often fatal in intermediate hosts, which can result in substantial economic losses in livestock farming. Coenurosis caused by the larval stage of T. multiceps and its epidemiology, molecular characterization, pathogenesis, diagnosis, therapy, control and zoonotic potential. This review covers all aspects of the life cycle of T. The larval stage, Coenurus cerebralis, is typically found in the central nervous system (CNS) of a wide range of livestock and, to a lesser extent, in the extra-cerebral tissues of sheep and goats. (2004) in goat have reported the cases of coenuriasis which could be successfully treated employing surgical procedures.Taenia multiceps is a taeniid cestode that inhabits the small intestines of both wild and domestic carnivores. Magroub (1972) and Aslani (1999) in sheep and Mandal et al. However, timely surgical intervention has been hailed as the best remedy to cure the afflicted animals. There is no effective medicinal treatment against the disease and the affected animals succumb to the disease. The disease is propagated by dogs, final host, consuming the brains of affected animals (sheep/goat) having cystic form of the worm (Amin et al., 2013). ![]() The intermediate stage, Coenurous cerebralis, develops in brain and spinal cord of sheep and goat on consuming the fodder soiled with dog’s faeces. The adult tapeworm reside in small intestine of dog, fox, jackal and other canines (Soulsby, 1986) and the disease is commonly found in caprine and ovine species. This disease is also known as coenuriasis or stagger. Gid (a disease of central nervous system) is caused by larval stage, Coenurus cerebralis, of adult tapeworm Taenia multiceps. Animal Production Research Institute, R.A.U, Pusa, Bihar ![]()
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