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欧盟评估贝莱斯芽孢杆菌NRRL B-67257作为所有生长中家禽物种饲料添加剂的功效

放大字体  缩小字体 时间:2023-01-12 11:00 来源:食品伙伴网 作者: 泽夕   
核心提示:2023年1月11日,据欧盟食品安全局(EFSA)消息,应欧盟委员会要求,欧盟动物饲料添加剂和产品(FEEDAP)研究小组就贝莱斯芽孢杆菌(Bacillus velezensis)NRRL B-67257作为所有生长中家禽物种饲料添加剂的有效性发表科学意见。
   食品伙伴网讯  2023年1月11日,据欧盟食品安全局EFSA)消息,应欧盟委员会要求,欧盟动物饲料添加剂和产品(FEEDAP)研究小组就贝莱斯芽孢杆菌(Bacillus velezensis)NRRL B-67257作为所有生长中家禽物种饲料添加剂的有效性发表科学意见。
 
  经过评估,专家小组无法根据最新提供的数据就贝莱斯芽孢杆菌NRRL B-67257作为所有生长中家禽物种饲料添加剂的功效做出结论。部分原文报道如下:
 
  Following a request from the European Commission, EFSA was asked to deliver a scientific opinion on the efficacy of a product consisting of spores of Bacillus velezensis NRRL B-67257 as a zootechnical additive for chickens for fattening, chickens reared for laying, turkeys for fattening, turkeys reared for breeding and minor poultry species. The additive has the tradename Correlink  ABS1781 Bacillus subtilis and is not currently authorised in the EU. It is intended for use in complete feed for the target species at a minimum inclusion level of 1.5 × 108 CFU/kg complete feed. In a previous opinion, the FEEDAP Panel could not conclude on the efficacy of the additive for the poultry species due to the potential cross-contamination of the control diets in two of the three studies provided. The applicant has provided supplementary information to exclude this possibility. The new data showed that the gene used as marker in the previous analyses is non-specific of the NRRL B-67259 strain, which precluded the adequate quantification of the active agent in the feeds used in the studies. Moreover, in a second analysis, the active agent could not be isolated from the field excreta samples collected from either the treated or the control group in the two formerly submitted efficacy studies. The Panel concluded that the methodology was not able to discriminate between the strain under assessment and the background. Additionally, two new efficacy trials with chickens for fattening were provided to support the efficacy of the additive. However, none could be further considered since the husbandry conditions in which the birds were kept were non-compliant with Directive 2007/43/EC. Therefore, the FEEDAP Panel was not in the position to conclude on the efficacy of Correlink  ABS1781 for all growing poultry species.
 
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日期:2023-01-12
 
 
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