Document Detail

Use of a multivariable indexing score for hygiene variables in relation to egg production.
MedLine Citation:
PMID:  1883104     Owner:  NLM     Status:  MEDLINE    
An indexing system for hygiene variables associated with egg production was developed by use of data collected from chicken flocks in southern California. The data were analyzed by factor and regression analysis. On the basis of our findings, hygiene index in relation to egg production consists of ventilation system, cooling system, manure removal, and truck movement. Flocks kept under natural ventilation produced, on the average, 2% more hen-day eggs than flocks kept under artificial ventilation. Flocks placed in houses with roof sprinklers produced 3.3% more hen-day eggs, compared with flocks placed in houses with inside foggers and pad. Flocks kept under the system of frequent removal of manure produced 2% more hen-day eggs than flocks kept under the system for which the manure was removed less frequently. Flocks kept in farms that restricted trucks collecting dead birds from entering the premises produced 3.4% more hen-day eggs than those that allowed such trucks to enter the farm.
H O Mohammed; T E Carpenter
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  American journal of veterinary research     Volume:  52     ISSN:  0002-9645     ISO Abbreviation:  Am. J. Vet. Res.     Publication Date:  1991 Jun 
Date Detail:
Created Date:  1991-10-02     Completed Date:  1991-10-02     Revised Date:  2003-11-14    
Medline Journal Info:
Nlm Unique ID:  0375011     Medline TA:  Am J Vet Res     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  970-3     Citation Subset:  IM    
Department of Clinical Science, New York State College of Veterinary Medicine, Cornell University, Ithaca 14853.
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MeSH Terms
Animal Husbandry / standards*
Chickens / physiology*
Housing, Animal
Hygiene / standards*
Multivariate Analysis
Refuse Disposal
Regression Analysis
Reg. No./Substance:

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

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