HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS		QUICK SEARCH:   [advanced] Author: Keyword(s): Year:  Vol:  Page:

This Article Abstract Full Text Free Full Text (PDF) Free Alert me when this article is cited Alert me if a correction is posted Services Similar articles in this journal Similar articles in PubMed Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via Google Scholar Google Scholar Articles by Collick, A. S. Articles by Bowman, D. D. Search for Related Content PubMed PubMed Citation Articles by Collick, A. S. Articles by Bowman, D. D. Agricola Articles by Collick, A. S. Articles by Bowman, D. D. Related Collections Best Management Practices Animal Waste

Inactivation of Ascaris suum in a Biodrying Compost System

^a Biological and Environmental Engineering Dep., Cornell Univ., Ithaca, NY 14853
^b USDA-Natural Resource Conservation Service, Syracuse State Office, Syracuse, NY
^c Microbiology and Immunology, School of Veterinary Medicine, Cornell Univ., Ithaca, NY 14853

View larger version (21K): [in this window] [in a new window]   Fig. 1. Cross-sectional view (A): Chamber pairs situated at the three different elevations, labeled A, B, or C, in the biodrying compost pile. The initial depth of the pile was approximately 1.2 m. Top view of compost pile (B): Circles represent a set of three chamber pairs situated vertically through the pile. Twenty sets of three pairs were situated along horizontal distances on either side of the pile. The four thermocouples located at the horizontal distance of 9.5 m (equivalent with sample set #19) had initial elevations of 94, 74, 45, and 16 cm.

View larger version (52K): [in this window] [in a new window]   Fig. 2. Images produced from microscopic examination of larvated (A) and not larvated (B) A. suum eggs. Both larvated and non-larvated eggs were present in control chambers, but only eggs that had not larvated were present in those chambers removed from the compost pile.

View larger version (43K): [in this window] [in a new window]   Fig. 3. Pile height (thick solid line) and chamber [a (black squares), b (empty squares), and c (gray squares)] elevation at Day 1 (a), Day 4 (b), Day 8 (c), Day 12 (d), Day 16 (e), and Day 20 (f) before each day's sampling. The four horizontal lines in each day's graph represent the elevation of the thermocouples situated at the bottom (line with cross), bottom middle (dash line), top middle (line with X), and top (solid line).

View larger version (19K): [in this window] [in a new window]   Fig. 4. Full 21-d cycle of outside temperature and temperatures at four thermocouples situated throughout the biodrying compost pile.

View larger version (13K): [in this window] [in a new window]   Fig. 5. Inactivation of A. suum eggs extracted from chambers in the biodrying compost pile (dashed line with circles) and from control chambers (line with squares).