An actinomycete strain (Ar386) was isolated from the soil of the Araraquara regio, SP, Brazil. The strain, named Streptomyces jacareensis, formed irregular rayed, rugose, grayish-white mycelium with sinuous, branched hyphae carrying rare isolated spores; assimilated glucose, galactose, inositol, ribose, maltose, sucrose, melibiose and starch but no...
Published in Proceedings of the National Academy of Sciences of the United States of America
A novel fungal metabolite, apicidin [cyclo(N-O-methyl-L-tryptophanyl-L -isoleucinyl-D-pipecolinyl-L-2-amino-8-oxodecanoyl)], that exhibits potent, broad spectrum antiprotozoal activity in vitro against Apicomplexan parasites has been identified. It is also orally and parenterally active in vivo against Plasmodium berghei malaria in mice. Many Apico...
Understanding of factors that influence the epidemiology of Eimeria acervulina infections was increased by combined theoretical, experimental and field work. First, a simulation model was developed. Second, principles and phenomena as observed in simulation results were validated by conducting experiments in broilers. The research described in this...
Published in Acta veterinaria Scandinavica
The extent to which oocysts of the coccidian parasite Eimeria alabamensis can survive the winter and cause clinical coccidiosis in different parts of Sweden was investigated. Fecal samples were collected between May and July 1993 from calves on 59 farms where calves had grazed the same pasture for at least 5 consecutive years. The farms were situat...
Published in Acta veterinaria Scandinavica
Forty-seven piglets were inoculated with doses of 100 to 50,000 sporulated oocysts of Isospora suis. After 5-7 days oocysts were found in faeces. The patent period extended from 8 to 16 days. The shedding of oocysts showed a cyclic pattern with 2-3 peaks separated by intervals of approximately 5 days. Subpatent periods were often seen between the p...
An investigation was made of the seasonal incidence of coccidial infeciton in West African Dwarf (WAD) goats in 2 villages and an on-station situation in the subhumid zone of Nigeria. Faecal samples were obtained from about 70 goats in each village and 160 on-station at 4 times of the year, early and late dry and wet seasons. Six species of Eimeria...
In dit rapport wordt de ontwikkeling van een methode beschreven voor de bepaling van residuen van meticlorpindol in pluimveevlees met behulp van HPLC en UV-detectie. Er is onderzoek verricht naar de chromatografische scheiding van meticlorpindol op reversed phase kolommen, naar een geschikte extractiemethode en de zuivering en concentratie van de e...
