A simple, robust and semi-automated parasite egg isolation protocol
Large-scale parasite quantification is required for improving our understanding of the epidemiology and genetics of host–parasite interactions. We describe a protocol that uses a low-density salt solution for flotation and centrifugation of nematode eggs. Subsequently, sucrose flotation and precipit...
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| Veröffentlicht in: | Nature protocols 2007-03, Vol.2 (3), p.486-489 |
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| creator | Mes, Ted HM Eysker, Maarten Ploeger, Harm W |
| description | Large-scale parasite quantification is required for improving our understanding of the epidemiology and genetics of host–parasite interactions. We describe a protocol that uses a low-density salt solution for flotation and centrifugation of nematode eggs. Subsequently, sucrose flotation and precipitation are used to obtain clear egg preparations. Most traditional quantification protocols such as the McMaster technique are unsuited for the standardized processing of large numbers of samples and the analysis of large amounts of feces per sample. Consequently, they are suited only for small-scale surveys. Our protocol, which can be used to analyze up to 6 g of feces, results in clear egg preparations that are concentrated in wells of a microtiter plate and that are suited for digital recording and automated counting. Starting from a fecal suspension in the first flotation solution to a digital recording requires approximately 40 min per 24 samples. |
| doi_str_mv | 10.1038/nprot.2007.56 |
| format | Article |
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We describe a protocol that uses a low-density salt solution for flotation and centrifugation of nematode eggs. Subsequently, sucrose flotation and precipitation are used to obtain clear egg preparations. Most traditional quantification protocols such as the McMaster technique are unsuited for the standardized processing of large numbers of samples and the analysis of large amounts of feces per sample. Consequently, they are suited only for small-scale surveys. Our protocol, which can be used to analyze up to 6 g of feces, results in clear egg preparations that are concentrated in wells of a microtiter plate and that are suited for digital recording and automated counting. 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We describe a protocol that uses a low-density salt solution for flotation and centrifugation of nematode eggs. Subsequently, sucrose flotation and precipitation are used to obtain clear egg preparations. Most traditional quantification protocols such as the McMaster technique are unsuited for the standardized processing of large numbers of samples and the analysis of large amounts of feces per sample. Consequently, they are suited only for small-scale surveys. Our protocol, which can be used to analyze up to 6 g of feces, results in clear egg preparations that are concentrated in wells of a microtiter plate and that are suited for digital recording and automated counting. 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| language | eng |
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| subjects | Analytical Chemistry Animals Animals, Domestic - parasitology Automation Biological Techniques Biomedical and Life Sciences Centrifugation Computational Biology/Bioinformatics Control Eggs Epidemiology Feces Feces - parasitology Flotation Genetics Influence Life Sciences Methodology Methods Microarrays Nematoda - cytology Nematoda - isolation & purification Organic Chemistry Ovum - cytology Parasite Egg Count - methods Parasite Egg Count - veterinary Parasites Parasitic diseases Protocol Risk factors |
| title | A simple, robust and semi-automated parasite egg isolation protocol |
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