strains improving animal performance parameters
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United States of America
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Apr 5, 2022
Grant Date -
Jul 16, 2020
app pub date -
Mar 14, 2018
filing date -
Mar 14, 2018
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Abstract
The present invention provides a Bacillus subtilis strain selected from the group consisting of a) the strain deposited as DSM32324, b) the strain deposited as DSM32325, and c) a mutant strain of (a) or (b) which has sensitivity for ampicillin, vancomycin, gentamicin, kanamycin, streptomycin, erythromycin, clindamycin, tetracycline, and chloramphenicol; and has inhibitory activity against E. coli and Clostridium perfringens. The invention further relates to Bacillus compositions comprising at least one Bacillus subtilis strain of the invention, preferably the Bacillus subtilis strain DSM32324 and/or the Bacillus subtilis strain DSM32325, as Direct Fed Microbial (DFM), premix, animal feed additive or animal feed. The invention provides a method of improving one or more animal performance parameters selected from the group consisting of i) increased weight gain (WG), ii) lower feed conversion ratio (FCR), iii) lower necrotic enteritis lesion scoring, iv) lower necrotic enteritis frequency, v) lower necrotic enteritis mortality, vi) increased European Production Efficacy Factor (EPEF), and vii) lower mortality, by feeding a strain or a composition according to the invention to an animal.
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