abstract：:By means of conventional light microscopical and counting procedures, estimations have been made of the average number and size of ovarian balls from unfertilized and fertilized female Moniliformis dubius. The observations were made on worms recovered from experimental primary infections lasting 1, 2, 3, 4, 5, 8, 11, ...

journal_title：Parasitology

authors： Crompton DW,Arnold S

更新日期：1976-08-01 00:00:00

abstract：:The biological parameters which generate seasonal fluctuations in the size of populations of Caryophyllaeus laticeps are examined in detail. A mathematical model is formulated to describe the dynamics of the adult parasite within the fish host Abramis brama, and the predictions of the model are compared with observed ...

journal_title：Parasitology

authors： Anderson RM

更新日期：1976-06-01 00:00:00

abstract：:The genetic basis of virulence in a line (YM) of Plasmodium yoelii yoelii was investigated in a cross with a mild line (A/C). The blood forms of the virulent line developed extensively in mature erythrocytes of mice, causing death of the host within 7 days; infections with the mild line were normally restricted to ret...

journal_title：Parasitology

authors： Walliker D,Sanderson A,Yoeli M,Hargreaves BJ

更新日期：1976-04-01 00:00:00

abstract：:The pre-feeding and feeding periods of larvae, nymphs and adults of Rhipicephalus appendiculatus on rabbits (Oryctolagus cuniculus) were investigated. Larvae and nymphs required at least 8-9 days after hatching and moulting respectively before they could attach and start feeding, while adults required at least 6-9 day...

journal_title：Parasitology

authors： Tukahirwa EM

更新日期：1976-02-01 00:00:00

abstract：:The ultrastructure of the seminal vesicle, ejaculatory duct, cirrus sac and cirrus is described. The epithelium of the seminal vesicle consists of a single layer of squamous to cuboidal cells. The apical ends of the cells have thin polymorphic lamellae and long narrow pits, both of which enclose normal spermatozoa. Th...

journal_title：Parasitology

authors： Threadgold LT

更新日期：1975-12-01 00:00:00

abstract：:A culture chamber fitted with a polycarbonate sieve has been used to isolate Plasmodium knowlesi merozoites as they are released from schizonts. A 3 mum pore-size sieve allows passage of normal erythrocytes and red cells containing rings and trophozoites and can be used to concentrate schizonts from a mixed cell popul...

journal_title：Parasitology

authors： Dennis ED,Mitchell GH,Butcher GA,Cohen S

更新日期：1975-12-01 00:00:00

abstract：:Sporulated oocysts or oocyst hulls of Eimeria acervulina given via the crop, and oocyst juice or sporozoites inoculated directly into the intestinal lumen, were tested for their effects on the hypersensitivity of the intestines of immunized and susceptible birds. Only viable sporozoites consistently caused an increase...

journal_title：Parasitology

authors： Rose ME,Long PL,Bradley JW

更新日期：1975-12-01 00:00:00

abstract：:An hypothesis is presented to explain the red cell lysis which accompanies an acute malarial infection, as well as the mode of action of certain schizonticidal drugs in the quinoline and acridine series. Quinine and a number of other antimalarial drugs have been found to counteract the inhibition by protein of fatty a...

journal_title：Parasitology

authors： Laser H,Kemp P,Miller N,Lander D,Klein R

更新日期：1975-10-01 00:00:00

abstract：:RNA extracted from purified parasites of Plasmodium knowlesi was fractionated using agarose gel electrophoresis. Preparations from para sites grown both in vivo and in vitro contained species of RNA with sedimentation coefficients of 4-0S, 5-0S, 16-6S, 24-2S, 31-4S, 38-0S and 48-3S. There was less RNA present in paras...

journal_title：Parasitology

authors： Trigg PI,Shakespeare PG,Burt SJ,Kyd SI

更新日期：1975-10-01 00:00:00

abstract：:A comparison has been made of the responses of random-bred CFLP and inbred NIH mice to infection with Trichuris muris. Random-bred mice showed greater variation in worm burdens and less uniformity in worm expulsion. Irradiation prior to infection reduced variation, but did not increase the mean level of infection abov...

journal_title：Parasitology

authors： Wakelin D

更新日期：1975-08-01 00:00:00

abstract：:The effect of different incubation media and of temperature on the induction of water sensitivity has been investigated in intact and tailless Schistosoma mansoni cercariae. Removal of the cercarial tail by vortex stirring and elevation of the temperature of the medium from 27 to 37 degrees C resulted in the rapid ons...

journal_title：Parasitology

authors： Ramalho-Pinto FJ,Gazzinelli G,Howells RE,Pellegrino J

更新日期：1975-08-01 00:00:00

abstract：:The development of drug resistance by the present Houghton strain of Eimeria tenella to the quinolones, methyl benzoquate and buquinolate, was found to take place after a single experimental passage. The development of resistance was independent of drug selection pressure and showed cross resistance to other quinolone...

journal_title：Parasitology

authors： Chapman HD

更新日期：1975-08-01 00:00:00

abstract：:Increased permeability of capillaries and venules, labelled with colloidal carbon, was observed in the superficial mucosa of the small intestine of sheep infected with Trichostrongylus colubriformis. The labelled vessels were restricted to infected portions of the gut, and the intensity of labelling appeared to be re...

journal_title：Parasitology

authors： Barker IK

更新日期：1975-04-01 00:00:00

abstract：:Judged by oocyst production, infections with Eimeria acervulina in birds immunized with E. maxima were consistently higher than in birds which had not been immunized. Oocyst production of E. maxima in birds previously infected with E. acervulina was greater, in three out of four experiments, than in control chickens,...

journal_title：Parasitology

authors： Rose ME

更新日期：1975-04-01 00:00:00

abstract：:When eggs of the monogenean Dictyocotyle coeliaca, a parasite from the body cavity of Raja naevus, are incubated in alternating 12 h periods of light and darkness at 12 degrees C the marginal hooklets appear between 75 and 90 days after collecting the eggs from the host's body cavity and hatching begins after about 10...

journal_title：Parasitology

authors： Kearn GC

更新日期：1975-02-01 00:00:00