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Effect of a probiotic on resistance and rearing performance of broiler chickens



Effect of a probiotic on resistance and rearing performance of broiler chickens



Roczniki Naukowe Zootechniki (Suppl. z.6): 357-361



1200 broilers in 3 groups were given a starter diet for 3 weeks and then a grower diet comprising 19.2% protein and 12.7 MJ ME. Group 1 received no supplement, group 2 a supplement of 0.5 g/kg of flavomycin, and group 3 a supplement of 250 mg/kg of probiotic preparation of Lactobacillus acidophilus and Streptococcus faecium. For the 3 groups respectively, body weight averaged 2121, 2158 and 2212 g, feed conversion 2.27, 2.22 and 2.24 kg/kg gain, and mortality 2.3, 2.4 and 1.2%.

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