欧盟评估地衣芽孢杆菌DSM19670生产的丝氨酸蛋白酶作为鸡育肥饲料添加剂的安全性和有效性

 

　　经过评估，专家小组得出结论，该添加剂对鸡育肥是安全的。在没有数据的情况下，无法得出有关皮肤致敏潜力的结论。当添加剂使用水平为15,000 PROT/kg饲料对鸡育肥有效。部分原文报道如下：

 

　　Ronozyme®ProAct is the trade name of the feed additive under assessment and contains serine protease produced by a genetically modified strain of Bacillus licheniformis. Following a request from the European Commission, the Panel on Additives and Products or Substances used in Animal Feed (FEEDAP) was asked to deliver a scientific opinion on the safety and efficacy of Ronozyme? ProAct when used as a zootechnical additive for chickens for fattening. The additive is available in coated thermotolerant granulated and liquid forms (Ronozyme® ProAct CT/L). The production strain and its recombinant DNA were not detected in an intermediate concentrated product used to produce the final formulations. The final products do not trigger a safety concern with regard to the genetic modification. based on the results obtained in a tolerance study in chickens for fattening and the data from a subchronic oral toxicity study the FEEDAP Panel concluded that the additive is safe for chickens for fattening. The FEEDAP Panel concluded that the use of Ronozyme® ProAct CT/L as a feed additive gives rise to no concern for consumers and for the environment. The additive, in either form, is not an eye irritant but should be considered a skin irritant. In the absence of data, no conclusions on the skin sensitisation potential can be reached. Owing to the proteinaceous nature of the active substance it should be considered a respiratory sensitiser. The FEEDAP Panel also concluded that the additive has the potential to be efficacious at 15,000 PROT/kg compound feed for chickens for fattening.

 

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