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[The survival ability of salmonella, coccidia oocysts and ascarid eggs in laying hen feces from different housing systems].

Abstract
The time of survival of Salmonella typhimurium, coccidia oocysts and ascaris eggs in manure of layer was determined in 5 different housing systems and 2 storing places for litter. The experiments were carried out in a stable of experimental station Frankenforst of the university of Bonn with a flock of 2200 hens. The effects of the environment conditions temperature, dry matter content, pH-value and intestinal microflora of the manure have also been studied. The time of survival was different depending on the housing system. A recovery of viable coccidia oocysts was possible after 13-370 days, ascaris eggs 53-347 days and Salmonella typhimurium 2-175 days. The tenacity of the investigated test organism mainly depend on the dry matter content of the manure. The longest period of survival of salmonellas was found in dry environment conditions, were as coccidia oocysts and ascaris eggs have been observed with the shortest period of survival. The possibility of the examined resistant parasite stages to develop was disturbed. Only few of them were able to develop and with a longer development time than those examined in the control suspension. The results of this study indicate that chicken manure, before using it in plant production, should be stored long enough to prevent men or animals from possible infections.
AuthorsE Roesicke, E Greuel
JournalDTW. Deutsche tierarztliche Wochenschrift (Dtsch Tierarztl Wochenschr) Vol. 99 Issue 12 Pg. 492-4 (Dec 1992) ISSN: 0341-6593 [Print] Germany
Vernacular TitleZur Uberlebensfähigkeit von Salmonellen, Kokzidienoozysten und Spulwurmeiern im Legehennenkot unterschiedlicher Haltungssysteme.
PMID1289044 (Publication Type: English Abstract, Journal Article)
Topics
  • Animals
  • Ascaridia (growth & development)
  • Chickens (microbiology, parasitology)
  • Eimeria (growth & development)
  • Feces (microbiology, parasitology)
  • Housing, Animal
  • Salmonella typhimurium (growth & development)

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