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Friday, July 31, 2020 | History

2 edition of Some aspects of egg production in Fasciola hepatica. found in the catalog.

Some aspects of egg production in Fasciola hepatica.

Samuel Winston Blair Irwin

Some aspects of egg production in Fasciola hepatica.

by Samuel Winston Blair Irwin

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Published .
Written in English


Edition Notes

Thesis (Ph. D.)--The Queen"s University of Belfast, 1970.

The Physical Object
Pagination2 v
ID Numbers
Open LibraryOL19298275M

WILSON, R. A. Fine Structure of the Tegument of the Miracidium of Fasciola hepatica L. * Announcements, Book Reviews, Notes, and Obituaries are not listed here. Refer to Index.   Human infection outbreaks in Slovakia, ; Immune responses in rats and sheep induced by a DNA vaccine containing the phosphoglycerate kinase gene of Cited by: 1.

Platyhelminthes (platy = flat and helminth = worm), or simply ‘flatworms’, are dorsoventrally flattened and bilaterally symmetrical worms (Figure 1A,B).Often speculated in the classic literature to represent primitive basal bilaterians, modern molecular phylogenetic analyses place the Platyhelminthes within the Lophotrochozoa, a clade of invertebrate animals that includes . The liver flukes Fasciola hepatica and F. gigantica infect livestock worldwide and threaten food security with climate change and problematic control measures spreading disease. Fascioliasis is also a foodborne disease with up to 17 million humans infected. In the absence of vaccines, treatment depends on triclabendazole (TCBZ), and overuse has led to widespread resistance, Cited by: 5.

Fasciola hepatica infections occur in sheep-rearing areas of temperate climate such as in England and Wales. Most infections with F. hepatica are mild and morbidity increases with fluke burden. The acute phase occurs 6–12 weeks post-infection and patients often present with fever, right upper quadrant pain, hepatomegaly and occasionally jaundice. An experiment to measure growth and egg production at 2°C intervals within a range between 14° and 34°C was also made (see Experiment 13). The experimental tanks in Experiment 7 became infested with chaetogasters. While they are usually considered to be commensals, they appear to have caused a decrease in egg production.


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Some aspects of egg production in Fasciola hepatica by Samuel Winston Blair Irwin Download PDF EPUB FB2

Fluke egg sedimentation. Fluke egg counts were performed on individual and composite samples using a standard sedimentation technique Ahead of processing, samples were transported and stored at 4°C in sealed plastic bags to prevent development of F.

hepatica eggs All samples were processed within two weeks of collection. Briefly, faeces (specific Cited by: 2. Fasciolosis (syn. fascioliasis) is a global disease caused by F. hepatica and Fasciola gigantica, affecting a large number of countries throughout the world.

hepatica has an urban distribution, mainly in temperate zones, whereas F. gigantica is distributed in Africa and Asia. The CO2 produced by Fasciola hepática from glucose is derived principally from those decarboxylation reactions leading to the production of acetic and propionic acids, rather than from tricarboxylic acid cycle or pentose cycle decarboxylations.

The role of the tricarboxylic acid cycle in the oxidative metabolism of glucose is minimal, as is a probable pentose by:   AbstractAn in vitro study has been carried out to monitor changes to the female reproductive system in adult triclabendazole (TCBZ)-resistant Fasciola hepatica following treatment with a commercial preparation of myrrh (“Mirazid”).

Flukes were immersed for 6 h and 24 h in myrrh extract at a concentration of µg/ml, then processed for histological and Cited by: 1. Gordon discusses in very general terms the problem of Fasciola hepatica in Australia. Simlimnea subaquatalis is the only vector known there and is found in three types of habitats: the swamps and billabongs on some western rivers of New South Wales, the lakes at the mouth of the Murray and irrigated areas in New South Wales, Victoria and South by: 5.

Composite Fasciola hepatica faecal egg sedimentation test for cattle Article (PDF Available) in The Veterinary record (19):vetrec February. The estimation of daily total egg production of Fasciola hepatica and the number of adult flukes in sheep by faecal egg counts.

Aust. Vet.45, – [Google Scholar] Lagrange, E.; Gutmann, A. Sur l’infestation experimentale de la souris par Fasciola hepatica. Riv. Parassitol. 22, 93–Cited by: The liver fluke, Fasciola hepatica, is one of the major parasite threats to livestock industries world-wide.

In sheep and cattle, F. hepatica infection is commonly diagnosed using a. The main liver flukes infecting man are Fasciola hepatica, F. gigantica, Clonorchis sinensis, Opisthorchis felineus and Dicrocoelium dendriticum.

The liver rot disease, caused by F. hepatica, is normally a disease of sheep, goats and cattle who acquire the infection by grazing on aquatic plants containing encysted metacercariae.

Humans are. And, lo, they sometimes do. Reading an out of print book (possibly the book by Dr Vic Cole), I came across a reference to prenatal liver fluke. The paper is by Rees et al: Rees JB, Sykes WE and Rickard MD, Prenatal infection with Fasciola hepatica in calves.

Australian Veterinary Journal, 51, p. Hermaphroditic Flukes. The signs and symptoms of infection with the hermaphroditic flukes are related largely to the location of the adult wormsthe bile ducts (Fasciola hepatica, Clonorchis sinensis, Opisthorchis viverrini), the intestines (Fasciolopsis buski), or the lungs (Paragonimus westermani).Fasciola hepatica infection is the one exception, in that the disease has two Cited by: 2.

Fasciolosis is a disease of sheep, cattle, goats and occasionally humans. It is caused by a trematode called Fasciola with the two most common species of Fasciola hepatica (F. hepatica) and Fasciola gigantica (F. gigantica). The parasites encyst in the bile ducts and liver parenchyma of animals.

Fasciolosis is common in marshy water bodies where favorable for its intermediate Author: Tewodros Alemneh, Mebrate Getabalew, Dawit Akeberegn.

The two species of the greatest veterinary importance are Fasciola hepatica and Fasciola gigantica and snails are their intermediate host. Clinical disease is usually characterized by weight loss, anemia and hypopotenaemia.

Therefore, it can be concluded that Fasciolosis is an important parasitic disease which hinders the ruminants’ by: 1. Recently, new strains of Fasciola demonstrated drug resistance, which increased the need for new drugs or improvement of the present drugs.

Nanotechnology is expected to open some new opportunities to fight and prevent diseases using an atomic scale tailoring of materials.

The ability to uncover the structure and function of biosystems at the nanoscale, stimulates research Cited by: Effect of propolis on F.

gigantica eggs: Three propolis samples were used in this propolis sample was tested separately against immature F. gigantica eggs in different concentrations starting from 25 up to μg mLAnother group of eggs was incubated in distilled water as a control group, while solvent control group was also used.

Worm egg counts are not highly sensitive tests, i.e. there can be ‘a few’ false negatives, and the Fasciola egg count is no exception and may be worse than many.

The sensitivity of the fluke egg count is often in the range of % (Woodgate et al, ), sometimes worse, sometimes better. Hosts and parasites as aliens - Volume 80 Issue 2 - H.

Taraschewski. Over the past decades, various free-living animals (hosts) and their parasites have invaded recipient areas in which they had not previously occurred, thus gaining the status of aliens or by: Schistosomiasis, also known as snail fever and bilharzia, is a disease caused by parasitic flatworms called schistosomes.

The urinary tract or the intestines may be infected. Symptoms include abdominal pain, diarrhea, bloody stool, or blood in the urine. Those who have been infected for a long time may experience liver damage, kidney failure, infertility, or bladder ciation: /ˌʃɪstəsəˈmaɪəsɪs, -toʊ- -soʊ-/.

The objective of the present study was to determine the prevalence and associated determinants (e.g., sex, age, on-farm management and husbandry) of gastrointestinal (GI) helminths in the domestic animals of district Toba Tek Singh, Punjab, Pakistan.

For this purpose, 1, cattle, 1, buffaloes, goats, sheep, and camels were randomly selected Cited by:   Food-borne trematodiases are zoonoses and may also have a negative impact on agri- and aquacultural production in affected regions.

Mathematical modelling and analysis of food-borne trematodiases transmission dynamics to inform control and prevention is still in a very early stage, also due to the very limited availability of essential : Thomas Fürst, Thomas Fürst, Thomas Fürst, Puangrat Yongvanit, Narong Khuntikeo, Zhao-Rong Lun, Juani.

Fasciola hepatica is a globally spread highly pathogenic trematode which mainly occurs in domestic ruminants as a chronic disease and produces major economic losses in terms of production loss and liver condemnation.

Fasciolosis has been recognised by the WHO as a re-emerging neglected tropical disease and it is also of public health interest since it causes Cited by: 1.Parasitic worms, also known as helminths, are large macroparasites; adults can generally be seen with the naked are intestinal worms that are soil-transmitted and infect the gastrointestinal parasitic worms such as schistosomes reside in blood vessels.

Some parasitic worms, including leeches and monogeneans, are ectoparasites - thus, they are not .Epidemiology of paramphistomosis in sheep and goats was studied using field and abattoir samples at Jammu, India.

Abattoir examination revealed that % of sheep and % of goats were positive for paramphistomosis. The mean worm counts (±SEM) were ± in sheep and ± in by: