Results 141 to 150 of about 10,897 (188)
Some of the next articles are maybe not open access.
Acetylcholinesterases of Gastrointestinal Nematodes
2000Vertebrate cholinesterases (ChEs) are broadly classified into two families based on their substrate specificity. Acetylcholinesterases (AChEs) terminate transmission of neuronal impulses by rapid hydrolysis of acetylcholine (ACh), and are therefore primarily associated with synaptic contacts in nerves and muscle (Fig. 1).
Murray E. Selkirk, Ayman S. Hussein
openaire +1 more source
Antigens of gastrointestinal nematodes
Transactions of the Royal Society of Tropical Medicine and Hygiene, 1986Nematodes occupying the gastrointestinal (GI) tract of man shed an as yet undefined array of chemicals into their environment. To combat effectively the potentially debilitating disease caused by infection with these organisms we must (a) define the parasite products chemically, (b) determine their ability to induce protective immunity (or to counter a
openaire +2 more sources
The Effect of Gastrointestinal Nematodes on Metabolism in Calves
1987The results of metabolic studies on calves infected with gastrointestinal nematodes are critically reviewed with some reference to work carried out in sheep. Special attention is given to feed intake, energy and nitrogen utilization. Impairment of all these processes may be contributing factors in the poor performance of parasitized animals.
Kloosterman, A., Henken, A.M.
openaire +2 more sources
Gastrointestinal Nematodes, Diagnosis and Control
Veterinary Clinics of North America: Food Animal Practice, 2018Disease caused by nematodes in the gastrointestinal tract of cattle is primarily economic and the effect of treatment is cattle grow larger faster because of increased feed intake. The disease, control measures, and drugs used must be focused on different ages and environments.
openaire +2 more sources
The immunobiology of gastrointestinal nematode infections in ruminants
2000The major gastrointestinal nematode parasites of ruminants all belong to the Order Strongylida and the family Trichostrongyloidea. Despite this close evolutionary relationship, distinct differences exist in the microenvironmental niches occupied by the developmental stages of the various parasites, which may account for the variable susceptibility of ...
A, Balic, V M, Bowles, E N, Meeusen
openaire +2 more sources
Efficacy of Albendazole Against Gastrointestinal Nematodes of Cattle
American Journal of Veterinary Research, 1976SUMMARY Forty-five calves with artificial and pasture-acquired nematode infections were medicated with albendazole at dose levels of 0, 2.5, 5.0, or 10 mg/kg of body weight. A dose level of 2.5 mg/kg removed at least 99% of adult Trichostrongylus axei, Trichostrongylus colubriformis, Cooperia oncophora, and Bunostomum phlebotomum. Burdens of Haemonchus
V J, Theodorides +3 more
openaire +3 more sources
The efficacy of febantel on gastrointestinal nematodes in sheep
Research in Veterinary Science, 1978Febantel (Bay h 5757, Rintal) is a broad-spectrum anthelmintic of a new type. A single oral dose of 5 mg/kg is fully effective against larval and adult stages of Haemonchus contortus, Trichostrongylus colubriformis, Oesophagostomum columbianum, Ostertagia circumcincta and Bunostomum trigonocephalum in sheep.
openaire +2 more sources
Immunological control of gastrointestinal nematode infections
Veterinary Parasitology, 1997Control of nematode parasitism by an active manipulation of the host immune response has been a goal of veterinary and medical parasitologists for decades. The reality of achieving this goal has been questioned vigorously and demonstrations of the feasibility of using immunological control under field conditions are minimal.
openaire +2 more sources
Breeding cattle and sheep for resistance to gastrointestinal nematodes
Parasitology Today, 1992Gastrointestinal nematodes are an important cause of reduced production of meat, milk and wool in domestic livestock. It is generally believed that problems caused by these parasites have increased owing to the intensification of animal husbandry(1-3) of resistance to anthelmintics, current research is focussed on alternative control strategies that do
Kloosterman, A. +2 more
openaire +3 more sources
Study of Gastrointestinal Nematodes in Sicilian Sheep and Goats
Annals of the New York Academy of Sciences, 2004Abstract: Parasitic gastroenteritis is one of the major causes of productivity loss in sheep and goats. This report records two studies of the helminth fauna from post‐mortem examination. The first study, performed on the digestive tract of 72 sheep from a central part of Sicily in a high hill village (1,360 meters above sea level), between April 1996
A, Torina +6 more
openaire +2 more sources