2022年2月23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）研究小组就尼卡巴嗪（nicarbazin ）作为育肥火鸡饲料添加剂的有效性发表科学意见。
经过评估，专家小组得出结论，在100 mg尼卡巴嗪/kg全价饲料的剂量下，该添加剂具有有效抗火鸡球虫病的潜力。部分原文报道如下：
Following a request from the European Commission, the Panel on Additives and Products or substances used in Animal Feed (FEEDAP Panel) was asked to deliver a scientific opinion on the efficacy of the coccidiostat nicarbazin (Coxar®) when used in feed for turkeys for fattening. On the basis of the new data provided, the FEEDAP Panel updated its previous conclusions on the efficacy of Coxar® as follows: the two new floor pen studies showed efficacy of nicarbazin from Coxar® reducing the adverse clinical consequences of an Eimeria infection in turkeys. Overall, when considering also the positive floor pen study previously reported and the three positive anticoccidial sensitivity tests, the FEEDAP Panel concludes that Coxar® has the potential to be efficacious against coccidiosis of turkeys for fattening at 100 mg nicarbazin/kg complete feed.
