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EFFECT OF ENVIRONMENTAL TEMPERATURE ON SUSCEPTIBILITY OF YOUNG CHICKENS TO SALMONELLA TYPHIMURIUM
Author(s) -
Soerjadi A. S.,
Druitt J. H.,
Lloyd A. B.,
Cumming R. B.
Publication year - 1979
Publication title -
australian veterinary journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.382
H-Index - 59
eISSN - 1751-0813
pISSN - 0005-0423
DOI - 10.1111/j.1751-0813.1979.tb05591.x
Subject(s) - salmonella , biology , veterinary medicine , zoology , bacteria , medicine , genetics
SUMMARY Day‐old chickens kept in a cold environment (18± to 22±C) were more susceptible to a low and moderate challenge of Salmonella typhimurium than chickens similarly challenged and kept in a warm environment (32± to 36±C). Cold stress at 10±C for 24 h when applied to 12‐day‐old chickens effectively increased the number of birds shedding organisms. However a similar cold stress on 20‐day‐old chickens resulted in a less dramatic increase in the number of birds shedding organisms. Of the 60 birds previously challenged with S. typhimurium and then subjected to cold stress, 16 birds recommenced shedding and 7 birds with no previous history of shedding began to shed organisms.