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Probiotics in poultry: modes of action

Published online by Cambridge University Press:  18 September 2007

L.Z. Jin ,
Y.W. Ho ,
N. Abdullah  and
S. Jalaludin
L.Z. Jin
Affiliation:
Institute of Bioscience, Universiti Putra Malaysia, 43400 UPM, Serdang, Selangor, Malaysia
Y.W. Ho
Affiliation:
Institute of Bioscience, Universiti Putra Malaysia, 43400 UPM, Serdang, Selangor, Malaysia
N. Abdullah
Affiliation:
Institute of Bioscience, Universiti Putra Malaysia, 43400 UPM, Serdang, Selangor, Malaysia
S. Jalaludin
Affiliation:
Institute of Bioscience, Universiti Putra Malaysia, 43400 UPM, Serdang, Selangor, Malaysia
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Abstract

This paper reviews recent advances on the use and mode of action of probiotics (direct-fed microbials) in poultry. The addition of probiotics to the diet has been found to improve growth performance and feed conversion in broilers, and egg mass, egg weight and egg size in layers. The mode of action of probiotics in poultry includes (i) maintaining normal intestinal microflora by competitive exclusion and antagonism; (ii) altering metabolism by increasing digestive enzyme activity and decreasing bacterial enzyme activity and ammonia production; (iii) improving feed intake and digestion; and (iv) neutralizing enterotoxins and stimulating the immune system.

Keywords

broilersdirect-fed microbialsLactobacilluslayersmodes of actionperformanceprobiotics
Type
Research Article
Information
World's Poultry Science Journal , Volume 53 , Issue 4 , December 1997 , pp. 351 - 368
Copyright
Copyright © Cambridge University Press 1997

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