Pellets enriched with healthy hay and quebracho are not sufficient to control gastrointestinal nematodes in meat sheep commercial flocks.

The emergence of AH multiresistant GIN compromises sustainability of grassland sheep farming worldwide. Plants rich in condensed tannins are an alternative method of parasitism management that is currently being explored. Feed supplementation trials with pellets rich in sainfoin () and quebracho ( spp.

[Two new species of Myxidium (Myxosporea: Myxidiidae) parasites of fresh water fish in Cameroon].

The study of Myxosporidia infecting Clarias pachynema Boulenger, 1903 (Clariidae), Ctenopoma petherici Günther, 1864 (Anabantidae) and Parachanna obscura (Günther, 1861) (Channidae) from the basin of Nkam in Cameroon, revealed the presence of two new species of Myxosporidia of the genus Myxidium Bütschli, 1882, all found in the gall bladder of their hosts. These new species were: Myxidium nkamensis n. sp.

[Thelohanellus njinei sp nov and T lagdoensis sp nov, Myxosporidia (Myxozoa: Myxosporea) parasites of Schilbeidae and Citharinidae fishes in Cameroon (central Africa)].

The study of Myxosporidia infecting Schilbe mystus (Linné, 1758) (Schilbeidae) and Citharinus citharus (Geoffroy Saint-Hilaire, 1809) (Citharinidae) from the Sanaga and Bénoué basins revealed the presence of two new species of the genus Thelohanellus kudo, 1993. These species are Thelohanellus njinei sp. nov.

[Three new species of Myxosporidia (Myxozoa: Myxosporea) parasites of Citharinus citharus (Geoffroy Saint-Hilaire, 1809) (Citharinidae) in Chad (Central Africa)].

The study of Citharinus citharus (Geoffroy Saint-Hilaire, 1809) (Teleost, Citharinidae) captured in the Chari river in Chad revealed the presence of three new myxosporidian which are described in the present paper: Thelohanellus taguii sp. nov., a systematic parasite; Myxobolus mbailaoi sp.

Electron microscopic study of a new microsporean Microsporidium epithelialis sp. n. infecting Tubifex sp. (Oligochaeta).

The cytology of a new microsporean parasite Microsporidium epithelialis sp. n. from the intestinal epithelial cells of the freshwater oligochaete Tubifex sp.

Henneguya mbakaouensis sp. nov., Myxobolus nounensis sp. nov. and M. hydrocyni Kostoingue & Toguebaye, 1994, Myxosporea (Myxozoa) parasites of Centropomidae, Cichlidae and Characidae (Teleosts) of the Sanaga basin in Cameroon (Central Africa).

The study of 102 teleost freshwater fishes of Sanaga basin in Cameroon revealed the presence of three myxosporean species, among which two were new. Host fishes were of three families: Centropomidae, Cichlidae and Characidae. New species were identified as Henneguya mbakaouensis sp.

A clinical study of airborne allergens in the United Arab Emirates.

Background: In the past 25 years the United Arab Emirates (UAE) have experienced a socioeconomic boom. The once nomadic Bedouin population of Al Ain, in the emirate of Abu Dhabi, now lives in modern air-conditioned accommodation, and huge desalination plants have allowed afforestation and farming.

Objective: To evidence responsible airborne allergens in an UAE population.

Use of cross-reactive antigens of the microsporidian Glugea atherinae for the possible detection of Enterocytozoon bieneusi by western blot.

The microsporidia Enterocytozoon bieneusi is reported in 10-30% of those infected with the human immunodeficiency virus. The parasite appears to be a cause of gastralgia, malabsorption, and diarrhea. A Western blot technique using another microsporidian species, Glugea atherinae, has demonstrated an antigenic similarity between this parasite and E.

Electrostatic and hydrophobic interactions are involved in factor Va binding to membranes containing acidic phospholipids.

The interaction of factor Va with phospholipid monolayers was studied using alternating current polarography. For these studies a hanging mercury drop electrode is positioned in contact with the monolayer at the air-monolayer interface. Factor Va introduced into the aqueous subphase beneath the monolayer caused alterations in the capacitance of the circuit.

Ultrastructural data on the sporogenesis of Myxidium giardi, cépède 1906 (Myxozoa, Myxosporidia), parasite of Anguilla anguilla (Teleostea).

Ultrastructural study of Myxidium giardi showed that pluricellularity is maintained by the formation of septate desmosomes. The polar capsule is formed from helicoidal depositions of banded material in the initial vacuole. This process makes possible not only the formation of the rigid capsular body but also of the flexible polar filament which is evaginable and reversed in the capsule.

[Presence of gregarine (Protozoa sporozoa) parasite of black-lipped pearl oysters Pinctada margaritifera (L.,1758) (Mollusca bivalvia) in French Polynesia].

High death rates have been recorded in populations of Pinctada margaritifera (natural or reared stocks) in atolls in the Tuamotu Archipelago (French Polynesia). An histological study of the oysters from the concerned areas revealed the occurrence of a protist of which ultrastructural features correspond to those of Gregarinea. It is still premature to establish a link between the presence of the Gregarine and recent deaths of pearl oysters.

Loma camerounensis sp. nov. (Protozoa:Microsporida) a parasite of Oreochromis niloticus Linnaeus, 1757 (Teleost:Cichlidae) in fish-rearing ponds in Melen, Yaoundé, Cameroon.

A new microsporidian, Loma camerounensis, was found in the Cichlidae Oreochromis niloticus from the Melen fish-rearing station in Yaoundé, Cameroon. Xenomas were located in the gut from the oesophagus to the intestine, but preferentially in the duodenum. Dimensions of the fresh spores were 3.

Microfilum lutjani N. G. N. Sp. (Protozoa Microsporida), a gill parasite of the golden African snapper Lutjanus fulgens (Valenciennes, 1830) (Teleost Lutjanidae): developmental cycle and ultrastructure.

Microfilum lutjani n. g., n.

Nosema galerucellae n. sp., Microsporidian (Protozoa, Microspora), parasite of Galerucella luteola Müller (Chrysomelidae, Coleoptera): Development cycle and ultrastructure.

The life cycle of the microsporidian parasite of Galerucella luteola (Chrysomelidae, Coleoptera) was investigated by optical and electron microscopy. All stages were diplokaryotic and apansporoblastic. Sporogony was disporous.

Deep dermatophytosis to Trichophyton rubrum and T. verrucosum in an immunosuppressed patient.

A patient treated with immunosuppressant drug therapy for a non-Hodgkin's lymphoma and who presented with a tinea corporis developed a sudden outbreak of numerous subcutaneous nodules. Deep-seated hyphae and spores were found in skin biopsy specimens. There was no evidence of keratin debris or histologic features of granulomata and giant cells.

[A new intracellular protozoon of Salmo gairdneri Richardson, 1836 (teleost fish). Taxonomic affinities].

Macrophages of 1+ rainbow trout are parasitised by an unknown protozoan. An ultrastructural study permits to associate it with the genus Dermocystidium described in many fishes. This protozoan is characterized by a large vacuole of mitochondrial origin and by concentric structured bodies.

[Myxosporidians of freshwater fishes in Cameroon. I. New species of Myxidium Bütschli, 1882].

This work deals with the study of myxosporidians parasitizing freshwater fishes in Cameroon. Fishes belonging to four families are concerned: Cyprinodontidae, Distichodontidae, Cyprinidae and Mormyridae. Five new species of Myxidium, all inhabiting the gall-bladder of their hosts, are described and named.

[Evolution of xenomas and the double role of polynuclear neutrophils in the microsporodiosis of Glugea stephani (Hagenmuller, 1899) in the flounder Platichthys flesus (Linne, 1758)].

Glugea stephani forms xenomas in the intestinal wall and in several organs of the flounder Platichthys flesus in the Languedoc's ponds. Four characteristic stages are recognised in the development of these xenomas: reinforcement of the wall and maintenance of the host-parasite equilibrium, inflammation, granulomaformation, cicatrisation. The role of the polymorph neutrophiles is essential, first because it harbours the sporoplasm and then because it contributes to the destruction of the spores.

[Ormiersia carcini gen. n., sp. n., microsporidian of the Mediterranean crab, Carcinus mediterraneus Czerniavsky, 1844: developmental cycle and ultrastructural study].

A microsporidan parasite, Ormieresia carcini gen. n., sp.

[Further cytochemical researches on Microsporidia parasites of the Mediterranean shore crab, Carcinus mediterraneus Czerniavsky, 1884 (author's transl)].

A cytochemical study of Microsporidia in Carcinus mediterraneus points out the following data: acid or very acid intrasporoblastic mucopolysaccharids, are found in Thelohamia maenadis which react as sulfomucins in opposition to external asulfated mucosubstances rich in electronegative groups. In Nosema pulvis, the mucopolysaccharid compound is nearly equivalent of that of Nosema orthocladii. Both species are also characterized by the abundance of sulfured proteins in their spore walls and the lack of stock substances.

[New species of Microsporidia, parasite of Myriapoda-Diplopoda of South Dahomey].

A new microsporidian parasitic in Myriapoda-Diplopoda of Sud-Dahomey (Habrodesmus falx Cook & Oxydesmus granulosus Palisot de Beauvois) is described by photonic microscopy. It can be recognized by its thick-enveloped pansporoblasts yielding from 30 to 66 elongate and ovoid spores measuring 4,8 mum in length and 2,2 mum in diameter. The spore is uninucleate.