Assessing the effect of administering probiotics in water or as a feed supplement on broiler performance and immune response

1. Two routes of probiotic administration in broiler farms, in water and in feed, were compared using 360 one-day-old male broiler chickens. Controls received no probiotics or antimicrobials. The water group received a probiotic preparation at a rate of 0·5 g/l, and the feed group received it at an...

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Bibliographic Details
Published in:British poultry science 2010-04, Vol.51 (2), p.178-184
Main Authors: Karimi Torshizi, M.A, Moghaddam, A.R, Rahimi, Sh, Mojgani, N
Format: Article
Language:English
Subjects:
Animal Feed - analysis
Animal Nutritional Physiological Phenomena
Animals
blood lipids
body weight
broiler chickens
bursa of Fabricius
chickens
Chickens - growth & development
Chickens - immunology
cholesterol
Diet
Dietary Supplements
dosage
drinking water
Drug Administration Routes
Erythrocytes
feed conversion
feed intake
feed supplements
immune response
liveweight gain
Lymphoid Tissue - drug effects
Male
oral administration
probiotics
Probiotics - administration & dosage
Probiotics - pharmacology
Sheep
spleen
T-lymphocytes
tissue weight
triacylglycerols
Water - chemistry
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Summary:1. Two routes of probiotic administration in broiler farms, in water and in feed, were compared using 360 one-day-old male broiler chickens. Controls received no probiotics or antimicrobials. The water group received a probiotic preparation at a rate of 0·5 g/l, and the feed group received it at an inclusion rate of 1 g/kg. 2. Performance of broilers in terms body weight gain (BWG), feed intake (FI) and feed conversion ratio (FCR) improved when probiotic was provided via drinking water, compared to the control and feed groups. Probiotic administration reduced plasma cholesterol and triglyceride concentrations. 3. Spleen (28 and 42 d) and bursa (42 d) relative weights were influenced by method of probiotic administration, which also improved T-cell dependent skin thickness response to phytohaemagglutinin (PHA) injection. The effect of challenge by dinitrochlorobenzene (DNCB) depended on the method of probiotic administration. 4. The method of probiotic administration can influence the performance and immune competence of birds, and administration via drinking water appears to be superior to the more conventional in-feed supplementation method.
ISSN:0007-1668
1466-1799
DOI:10.1080/00071661003753756