[Survey of parasitoses of wild game animals in the DDR]. / Uberblick über Parasitosendes jagdbaren Wildes in der DDR.

A survey about the important parasites and parasitic diseases of the fair game animals in the GDR is given. Here are of special importance: the coccidiosis of the hares, the sarcosporidiosis and the infection with lungworms and gastro-intestinal helminths of the wild ruminants and wildboars, the onchocercosis of the red deer and lastly the infection with skin warble, pharyngeal gad-fly larvae and louse-flies of the roe and red deer. The possibility of crosswise infection between domestic and game animals is discussed and the necessity of practicable ways in prevention and medication of the parasites is demonstrated.

[Remarks on the pathogenicity of Eimeria species exemplified by cattle coccidiosis]. / Betrachtungen zur Pathogenität von Eimeria-Arten am Beispiel der Rinderkokzidiose.

Development and pathogenicity of the coccidia of cattle are known up to this day only for some species. The criteria responsible for pathogenicity of the species of Eimeria, which are arranged in the complexes "Biological qualities of the species of coccidia", "Factors of environment and stress" and "Situation of reaction of the host" are discussed. Thereby it is emphasized that in coccidiosis of calves and young cattles, especially conditions of environment are important for the outbreak or not of this disease.

[Incidence and damages inflicted by simuliid flies in the GDR district of Schwerin]. / Vorkommen und Schadwirkung von Kriebelmücken im DDR-Bezirk Schwerin

Systematic faunal studies in the district Schwerin showed at the present time there are 3 more or less damage-biotopes existing in the districts of Perleberg, Ludwigslust and Parchim; 5 river sources can be considered as potential sources, 5 are temporary and 2 are ephemeral whilst in 3 further areas environmental influences such as effluent impairs the flow of the river and the developmental stages of Simuliidae were not observed.--The following species were found: Boophthora erythrocephala, Wilhelmia salopiensis, Wilhelmia equina, Odagmia ornata, Eusimulium aureum and Eusimulium lundstroemi.--The damage statistics covering the period 1966--1971 showed in the district of Schwerin, due to Simuliid attacks, 38 cattle died, 170 were seriously ill; in 1967 5 horses were seriously ill; in 1971, 3 pigs died and 27 were seriously ill.--The symptoms were manifested by pathological petechiae, scabs and oedema, also by insufficiency of the heart and circulatory system, diminished performance and growth disturbance. In severe cases heart and circulation failure occurred, paresis, coma and death followed.--The real economic significance of the Simuliid attacks rest with its strong and prolonged distrubance in young animals, as well as in pronounced irreparable diminished performance in diseased dairy cattle.