Effect of various composting methods on the concentration and viability of Ascaris suum eggs in organic fertilisers


Citation

Andes Arianne L., . and Paller Vachel Gay V., . Effect of various composting methods on the concentration and viability of Ascaris suum eggs in organic fertilisers. pp. 687-698. ISSN 1511-3701

Abstract

The process of composting supports biological methods and management practices such as vermicomposting and microbial inoculation to enhance soil quality using biodegradable materials. However the use of manure from animals poses potential risk for soil-transmitted helminths (STH) contamination. This study is aimed to determine the influence of various composting methods on the concentration of artificially-inoculated Ascaris suum eggs. There were three treatments (vermicomposting composting with lactic acid bacteria sun dry-composting) and a control (composting alone) which were artificially inoculated with A. suum eggs. Composting was done for a period of 31 days. A. suum percent recovery was determined on the 10th and 31st day of the composting process. Results revealed no significant differences in the percent recovery of A. suum in the various composting methods (p0.05). Meanwhile on the 31st day the control (11.09‚6.40) and sundry-composting (9.03‚3.04) showed the highest percent recovery followed by composting with lactic acid bacteria (7.62‚4.41). No A. suum eggs were recovered for vermicomposting on the 31st day. However statistical analysis revealed no significant difference among treatments and control (p0.05). Nevertheless the present results suggest that the various methods of composting showed a 93.07 mean reduction of A. suum egg concentration in the organic fertilizers produced and that composting rendered mechanical damage to eggs leading to reduced viability. Nevertheless the presence of some fertilised eggs that could develop into infective embryonated eggs could still be a potential threat of viable eggs contaminating the organic fertilisers.


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Abstract

The process of composting supports biological methods and management practices such as vermicomposting and microbial inoculation to enhance soil quality using biodegradable materials. However the use of manure from animals poses potential risk for soil-transmitted helminths (STH) contamination. This study is aimed to determine the influence of various composting methods on the concentration of artificially-inoculated Ascaris suum eggs. There were three treatments (vermicomposting composting with lactic acid bacteria sun dry-composting) and a control (composting alone) which were artificially inoculated with A. suum eggs. Composting was done for a period of 31 days. A. suum percent recovery was determined on the 10th and 31st day of the composting process. Results revealed no significant differences in the percent recovery of A. suum in the various composting methods (p0.05). Meanwhile on the 31st day the control (11.09‚6.40) and sundry-composting (9.03‚3.04) showed the highest percent recovery followed by composting with lactic acid bacteria (7.62‚4.41). No A. suum eggs were recovered for vermicomposting on the 31st day. However statistical analysis revealed no significant difference among treatments and control (p0.05). Nevertheless the present results suggest that the various methods of composting showed a 93.07 mean reduction of A. suum egg concentration in the organic fertilizers produced and that composting rendered mechanical damage to eggs leading to reduced viability. Nevertheless the presence of some fertilised eggs that could develop into infective embryonated eggs could still be a potential threat of viable eggs contaminating the organic fertilisers.

Additional Metadata

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Item Type: Article
AGROVOC Term: Ascaris suum
AGROVOC Term: Eggs
AGROVOC Term: Organic fertilizers
AGROVOC Term: Composting
AGROVOC Term: Vermicomposting
AGROVOC Term: Lactic acid bacteria
AGROVOC Term: Chemical concentration
AGROVOC Term: Viability
AGROVOC Term: Organic farming
AGROVOC Term: Soil physicochemical properties
Depositing User: Ms. Suzila Mohamad Kasim
Last Modified: 24 Apr 2025 06:29
URI: http://webagris.upm.edu.my/id/eprint/24844

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