據(jù)了解，Avatec 150G的活性物質(zhì)為聚醚類離子載體拉沙洛西鈉（lasalocid A sodium）。根據(jù)附加信息，專家小組無法就添加劑Avatec 150G作為育肥雞飼料的安全性得出結(jié)論。由于缺乏足夠的數(shù)據(jù)，評估小組無法就添加劑在最低建議劑量水平（75mg拉沙洛西鈉 /kg全飼料）下對育肥雞的抗球蟲病功效作出結(jié)論，這一結(jié)論也適用于蛋雞。部分原文報(bào)道如下：

 

　　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 Avatec? 150G (lasalocid A sodium) for chickens for fattening and chickens reared for laying. In 2017, the FEEDAP Panel was not able to conclude on a safe dose for chickens for fattening and chickens reared for laying and no conclusion could be drawn on the anticoccidial efficacy of the additive at the lowest proposed used level (75 mg lasalocid A sodium/kg feed) in these species. In the present assessment, the applicant submitted new tolerance and efficacy studies in chickens for fattening to address the concerns identified by the FEEDAP Panel in its former opinion. In addition, the applicant proposed to decrease the maximum of the dose range from 125 to 100 mg lasalocid A sodium/kg complete feed. based on the additional information, the FEEDAP Panel concludes that no safe level of lasalocid A sodium from Avatec? 150G in feed for chickens for fattening can be identified. The FEEDAP Panel is not in the position to conclude on the coccidiostatic efficacy of Avatec? 150G for chickens for fattening at the lowest proposed dose level of 75 mg lasalocid A sodium/kg complete feed due to the insufficient number of studies with positive results. The conclusions are extended to chickens reared for laying.

 

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