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The efficacy of the probiotic feed additive Calsporin® (Bacillus subtilis C-3102) in broilers: combined analysis of four different studies

Published online by Cambridge University Press:  20 March 2013

T. Marubashi ,
M. I. Gracia ,
E. Esteve-Garcia  and
M. Piskoríková
T. Marubashi*
Affiliation:
Calpis Co Ltd, 150-0022 Tokyo, Japan
M. I. Gracia
Affiliation:
Imasde Agroalimentaria S.L., 28224 Pozuelo de Alarcón, Spain
E. Esteve-Garcia
Affiliation:
IRTA Mas Bové, 43280 Reus, Spain
M. Piskoríková
Affiliation:
Pen & Tec Consulting SL, 08195 Sant Cugat del Vallès, Spain
*
*Corresponding author:[email protected]
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Summary

The efficacy of the probiotic feed additive, Calsporin® (CAL; Bacillus subtilis C-3102), included in broiler diets at 50 mg/kg was evaluated using statistical meta-analysis of data from four different studies conducted using broilers from day-old to market weight at 42 days of age. The body weight, average daily gain, feed intake, feed to gain ratio, mortality and European Production Efficiency Factor (EPEF) data from each experiment were tested for homogeneity between trials before being pooled and analysed in combination to determine whether benefits were consistent independent of trial site and conditions. CAL supplementation significantly improved weight gain (P = 0.0037) between 1 and 21 days of age (3.3%) and feed conversion ratio (P = 0.0492) between 22 and 42 days of age (3.0%). Over the entire experimental period (day 1 to day 42 of age), broilers fed the CAL diets had significantly better (P = 0.0142) feed conversion (2.6%) and higher (P = 0.0062) EPEF (4.6%) compared to the controls. Birds fed diets supplemented with CAL were 1.6% heavier than controls at 42 days of age, a near-significant trend (P = 0.0558). The results demonstrated that CAL in broiler diets, added at an inclusion rate of 50 mg/kg, can be beneficial in terms of broiler performance.

Keywords

probioticCalsporin®broilerperformance
Type
Original Research
Information
Journal of Applied Animal Nutrition , Volume 1 , 2012 , e5
Copyright
Copyright © Cambridge University Press and Journal of Applied Animal Nutrition Ltd. 2013 

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