據(jù)了解，丁酸梭菌FERM BP-2789作為飼料添加劑用于育肥雞、產(chǎn)蛋雞和小型禽類的授權(quán)最低水平為2.5×108 CFU/kg全價(jià)飼料。申請(qǐng)人要求將這一水平降低到1.25×108 CFU/kg飼料。由于缺乏足夠的數(shù)據(jù)，專家小組無(wú)法就該添加劑在1.25×108 CFU/kg飼料的劑量下對(duì)目標(biāo)物種的功效得出結(jié)論。部分原文報(bào)道如下：
The additive Miya-Gold® consists of viable cells of Clostridium butyricum FERM BP-2789.The additive is currently authorised in the EU for use as a feed additive for chickens for fattening, chickens reared for laying, turkeys for fattening, turkeys reared for breeding, minor avian species (excluding laying birds), piglets (suckling and weaned) and piglets of minor porcine species. The authorisation for chickens and minor poultry species for fattening and reared for laying is at a minimum level of 2.5 × 108 CFU/kg complete feed. The applicant has requested to lower this level to 1.25 × 108 CFU/kg feed. The Panel on Additives and Products or Substances used in Animal Feed (FEEDAP) did not consider any of the five long-term trials and one pooled analysis of two of them as supporting evidence for the efficacy of the additive at the lower dose due to the incompliance of the husbandry conditions in which the chickens were reared with those indicated in Directive 2007/43/EC. Owing to the lack of adequate data, the Panel is not in the position to conclude on the efficacy of Miya-Gold® at 1.25 × 108 CFU/kg feed for the target species.
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