Document Detail

Effects of bird density on Salmonella contamination of prechill carcasses.
MedLine Citation:
PMID:  1608879     Owner:  NLM     Status:  MEDLINE    
Two similar trials were conducted to evaluate the effects of bird density on Salmonella contamination of processed broilers. Commercial strain broiler chicks were reared in floor pens on new litter at densities of 557, 619, 697, 796, 929, and 1,115 cm2 per bird. Twenty percent of the chicks in each density were gavaged directly into the crop with .5 mL of 10(8) nalidixic-acid-resistant (NAR) Salmonella typhimurium on Day 2. Twenty percent of the uninoculated birds in each density category were processed at 42 days. Prechill carcasses were evaluated for NAR Salmonella incidence using the whole carcass rinse technique and a mechanical shaking device. The resulting NAR Salmonella contamination rates (from lowest to highest bird densities) were as follows, 55, 4.2, 35.7, 34.3, 88.9, and 20% in Trial 1; and 30, 20.8, 28.6, 50, 58.3, and 30% in Trial 2. A random sample of the prechill carcasses of gavaged birds indicated a contamination rate of 13.8% in Trial 1 and 61.1% in Trial 2. The NAR Salmonella contamination rates of the prechill carcasses did not appear to be affected by the bird densities evaluated in these trials. Feed intake and body weight at 42 days were adversely affected by the highest bird density, but feed utilization was not affected.
A L Waldroup; J T Skinner; R E Hierholzer; J M Kopek; P W Waldroup
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, Non-P.H.S.    
Journal Detail:
Title:  Poultry science     Volume:  71     ISSN:  0032-5791     ISO Abbreviation:  Poult. Sci.     Publication Date:  1992 May 
Date Detail:
Created Date:  1992-07-17     Completed Date:  1992-07-17     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0401150     Medline TA:  Poult Sci     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  844-9     Citation Subset:  IM    
Department of Poultry Science, University of Arkansas, Fayetteville 72701.
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MeSH Terms
Body Weight
Chickens / microbiology*
Food Microbiology*
Population Density
Poultry Diseases / physiopathology*
Random Allocation
Salmonella Infections, Animal / physiopathology*
Salmonella typhimurium / growth & development,  physiology*

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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