the influence of environmental temperature on the rate of development of ascaris suum eggs in great britain. | the rate of development of ascaris suum eggs was recorded during 18 months in england. every second or third week unembryonated eggs were placed in an unheated animal house and their development was observed at weekly intervals. eggs underwent no development during november to may. embryonation was most rapid during june, july and august. the shortest time for eggs to reach the infective stage was two weeks in 1976 and four weeks in 1977. a relationship was apparent between the rate of developme ... | 1979 | 523803 |
helminth infestations in asian women attending an antenatal clinic in england. | asian women attending an antenatal clinic in england were studied to determine the infestation rates with intestinal helminths. an overall rate of 9% was found, rising to 18% in those women resident for less than 7 years. indians had a carriage rate of 3%, pakistanis 7.3% and bangladeshis 45%. species detected were hookworm, whipworm (trichuris trichiura), dwarf tapeworm (hymenolepis nana) and roundworm (ascaris lumbricoides). | 1988 | 3401436 |
taenia hydatigena: a cause of persistent liver condemnations in lambs. | a problem of high levels of liver condemnations which had affected bought-in lambs fattened on a north yorkshire farm for several years was investigated. because the farmer spread pig slurry on the land, migrating ascaris suum larvae were initially suspected as a cause but the investigation eliminated this possibility. migrating taenia hydatigena larvae were found in tissue sections and isolated from livers. a combination of parasitological and serological evidence using oncospheral antigen in a ... | 1985 | 4002589 |
hepatic ascariasis in lambs. | | 1973 | 4721081 |
survey of intestinal pathogens from immigrant children. | four thousand immigrant schoolchildren were screened by using a concentration method on a single faecal specimen for intestinal helminths; 1,468 (37%) were positive. carriage rates were highest (51%) in children from the west indies, in whom trichuris (75% of carriers) and ascaris (40% of carriers) predominated; carriage of two or more species was common (36% of carriers). carriage of worms was low in children from kenya (16%) and uganda (7%). children from south-east asia, predominantly from in ... | 1972 | 5013832 |
recovery of helminth eggs from archaeological excavations, and their possible usefulness in providing evidence for the purpose of an occupation. | | 1968 | 5691459 |
observations on the incidence of toxocara and toxascaris in dogs and cats from the london area. | | 1965 | 5886486 |
ascaris lumbricoides in english schoolchildren. | | 1984 | 6485073 |
a survey of gastrointestinal parasitism in pigs. | over a period of two years 180 pork pigs, 144 baconers and 144 sows from two slaughterhouses in northern england were examined for gastrointestinal parasites. sows showed the highest level and intensity of infection, 85 per cent harbouring the dominant parasites oesophagostomum dentatum and o quadrispinulatum; the highest worm burden recorded was 21,000. hyostrongylus rubidus was present in 28.5 per cent of sows but virtually absent from younger pigs. small numbers of ascaris suum and trichuris ... | 1980 | 7257108 |
from leningrad to london: the saga of kulchitsky and the legacy of the enterochromaffin cell. | by the end of the 19th century, the subject of internal secretion and the consequences of its perturbations had been explored in considerable depth but with little clear understanding. despite the anatomic delineation of the majority of the glands and tissues that comprised the gross endocrine system, the cellular basis and the interactions between the 'internal glands' and the nervous system had not been clearly delineated. prominent early investigators in the field included rudolf peter heiden ... | 2009 | 18562785 |
identification of factors influencing the occurrence of milk spot livers in slaughtered pigs: a novel approach to understanding ascaris suum epidemiology in british farmed pigs. | ascariosis is the most important internal parasitism present worldwide in farmed pigs. milk spots are healing lesions occurring when ascaris suum larvae migrate through the liver. this study aimed to identify current husbandry practices (e.g. wet/compound feeding, outdoors/indoors production, bedded/slatted floors) that influence the prevalence of milk spots in batches of slaughtered pigs, accounting for geographical locations and seasonality. farm information was accessed through the british fa ... | 2010 | 20667659 |
national monitoring of ascaris suum related liver pathologies in english abattoirs: a time-series analysis, 2005-2010. | ascaris suum is the most important internal parasite in farmed pigs world-wide. in england, the bpex pig health scheme (bphs) monitors the prevalence of ascariosis in slaughtered finished pigs by identifying milk spots - the healing lesions caused by a. suum larvae migration through the liver. this study investigates the trend of milk spot lesions from july 2005 to december 2010 to identify the progress made by the industry in controlling this parasitic disease. for visual explorations, the mont ... | 2011 | 21889266 |