Folia Parasitologica, vol. 33 (1986), issue 3

Efficacy of salinomycin, monensin and lasalocid against spontaneous eimeria infection in rabbits.

M Pakandl

Folia Parasitologica 33[3] 195-198 (1986)

Rabbits spontaneously infected with coccidia of the genus Eimeria were treated with salinomycin, lasalocid and monensin. The drugs were applied in pellets in the doses of 50 ppm. The weight gain in rabbits treated with salinomycin and monensin was higher than in those treated with lasalocid and by 22.6% higher than in control animals. The weight gain in animals treated with lasalocid was almost the same as in the control group. The oocyst production was suppressed most significantly by salinomycin.

THE TAXONOMICAL COMPOSITION OF THE FAMILY MICROCOTYLIDAE TASCHENBERG, 1879 (MONOGENEA)

Y L MAMAEV

Folia Parasitologica 33[3] 199-206 (1986)

SCANNING ELECTRON-MICROSCOPY OF CERCARIA AND ADULT OF OPISTHIOGLYPHE-LOCELLUS KOSSACK, 1910 (TREMATODA, PLAGIORCHIIDAE)

J BUSTA, V NASINCOVA

Folia Parasitologica 33[3] 207 (1986)

MORPHOLOGICAL AND HISTOCHEMICAL-OBSERVATIONS ON THE NEUROSECRETORY-CELLS OF DEVELOPING AND ADULT PARAMPHISTOMUM-CERVI (DIGENEA, PARAMPHISTOMATIDAE)

B C GUPTA, V R PARSHAD, S S GURAYA

Folia Parasitologica 33[3] 213-217 (1986)

Water snails as paratenic hosts of Hymenolepididae Fuhrmann, 1907 in Czechoslovakia.

B Rysavý

Folia Parasitologica 33[3] 219-226 (1986)

The distribution of cysticercoids of Hymenolepididae Fuhrmann, 1907 parasitizing water birds (Anseriformes and Ralliformes) in Czechoslovakia was studied. A total of 2970 snail specimens (429 Lymnaea stagnalis (L.), 531 L. ovata (Drap.), 1, 462 L. peregra (O. F. Müll.), 158 L. auricularia (L.), 262 Planorbis planorbis (L.) and 65 Viviparus viviparus (L.)) were examined for this purpose. Among them, 122 snails were infected with cysticercoids of 13 cestode species (Dicranotaenia coronula (Dujardin, 1845), Diorchis inflata (Rudolphi, 1810), D. nyrocae Yamaguti, 1935, D. ransomi Schultz, 1940, Diploposthe laevis (Bloch, 1782), Echinocotyle rosetteri Blanchard,...

THE MORPHOLOGY AND SYSTEMATIC STATUS OF PHILOMETRA-OVATA (ZEDER, 1803) (NEMATODA, PHILOMETRIDAE)

F MORAVEC

Folia Parasitologica 33[3] 227 (1986)

Some precursors of glycogen in Ascaris suum females.

M Rybos, P Dubinský, L Turceková

Folia Parasitologica 33[3] 235-240 (1986)

Intensity of incorporation of the labelled carbon from glucose, glucosamine and leucine into the glycogen of somatic cells and reproductive organs of Ascaris suum females has been studied. Glucose was most intensively incorporated into the growing oocytes and into the uterine epithelial cells, whereas its incorporation into muscle glycogen was found to result in lowest rates. Radiocarbons from glucosamine and leucine were incorporated into tissue glycogen of female worms much less than glucose. Incorporation of isotopes into glycogen of the eggs depended on the formation of their primary shells. The ways of incorporation of isotopes into glycogen of...

The concept of vector in parasitology, ecology of agents, epidemiology and epizootology.

E I Korenberg, V N Kryuchechnikov

Folia Parasitologica 33[3] 241-248 (1986)

The concepts of "host" and "vector" are compared in application to arthropods which are capable to transmit pathogens to man and animals. The paper shows that these concepts are not identical. The function of such arthropods as hosts of microorganisms, as well as their possible importance in population ecology, epidemiology and epizootology are discussed. The system of different concepts corresponding to the tasks of these scientific disciplines is also considered.

Analysis of interspecific relationships in mesostigmatid mites (Acari: Mesostigmata) in the nests of the bank vole (Clethrionomys glareolus (Schreber, 1780)).

M Daniel, V Albrecht

Folia Parasitologica 33[3] 251-264 (1986)

An analysis is presented of a community of mesostigmatid mites from the nests of Clethrionomys glareolus found in the forest biotopes of Vsetínské Beskydy Mts. (North Moravia) throughout all seasons of the year. Main attention was paid to the structure of the nest community, relationships of mites to their host and interspecific relationships in the mites themselves. Primarily cluster and factor analyses based on correlation matrix were used for mathematical assessment. The particular elements of correlation matrix were Spearman's non-parametric correlation coefficients computed from frequencies of species in the nests studied.

Some features of the ecology of fleas inhabiting the nests of the suslik (Citellus citellus (L.)). I: Population dynamics, sex ratio, feeding, reproduction.

J Ryba, P Rödl, L Bartos, M Daniel, V Cerný

Folia Parasitologica 33[3] 265-275 (1986)

While studying the suslik fleas in artificial nests planted in free nature, significant changes in the population dynamics of N. setosa, C. simplex and C. orientalis (from the spring build up to the autumnal peak and the decrease of flea number until the next spring) were noted. The predominance of females in the spring period was recorded in N. setosa. Significant seasonal changes in the number of engorged females of N. setosa and C. simplex and of C. orientalis males (the increase of engorged specimens in the spring and summer) were demonstrated. A significant predominance of females with mature eggs in the spring and summer and their negligible...

Rhabdovirus-like particles in the sporocyst of the trematode Brachylaimus fuscatus from terrestrial mollusc Ponsadenia duplocincta.

Z Zdárská, T N Soboleva, J Weiser

Folia Parasitologica 33[3] 277 (1986)

Rhabdovirus-like particles containing nucleoprotein in a helix with eight turns was demonstrated by transmission electron microscopy in subtegumental cells and syncytial layer of tegument in Brachylaimus fuscatus sporocyst. This is the first case of virus infection in trematodes. The possibility of transfer of the virus to intra-molluscan parasitic generations of the trematode is discussed with respect to the peculiarities of the life cycles of the family Brachylaimidae.

THE INFLUENCE OF BACILLUS-THURINGIENSIS VAR ISRAELENSIS ON THE MOSQUITO PREDATOR NOTONECTA-GLAUCA

J OLEJNICEK, B MARYSKOVA

Folia Parasitologica 33[3] 279-280 (1986)

Study of the properties of alkaline phosphatase in Taenia crassiceps (Zeder, 1800) cysticerci.

J Zenka, J Prokopic

Folia Parasitologica 33[3] 281-284 (1986)

The properties of alkaline phosphatase present in Taenia crassiceps cysticerci were studied. Approximately a half of the total activity was free and the remaining part was bound to membranes. Kinetic studies did not show any differences between the free and bound alkaline phosphatases. It was found that high substrate concentrations produced an inhibitory effect on the enzyme. This effect was much greater at lower pH. pH optimum changed with the concentration of the substrate.