2020年4月20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）研究小组就添加剂AveMix XG 10（内切β-1,4-木聚糖酶和内切β-1,3（4）-葡聚糖酶）用于育肥鸡的授权延期申请发表科学意见。

  申请人已提供证据证明目前市场上的此种添加剂符合现有授权条件。经过评估，专家组得出结论，在授权使用条件下，添加剂对目标物种、消费者和环境仍然是安全的。无需评估其有效性。部分原文报道如下：

  he additive AveMix®  XG 10 is a preparation of endo‐1,4‐beta‐xylanase and endo‐1,3（4）‐beta‐glucanase produced by Trichoderma longibrachiatum （formerly identified as Trichoderma reesei） Culture Collection-Mycothéque de l'Université Catholique de Louvain （MUCL）/Belgian Coordinated Collections of Microorganisms （BCCM） 49754 and T. longibrachiatum （formerly identified as Trichoderma reesei） MUCL/BCCM 49755.The applicant has provided evidence that the additive currently in the market complies with the existing conditions of authorisation. There is no new evidence that would lead the FEEDAP Panel to reconsider its previous conclusions. Thus, the Panel concludes that the additive remains safe for chickens for fattening, consumer and the environment under the authorised conditions of use. Regarding user safety the additive is not considered to be a dermal or eye irritant but it is a dermal and respiratory sensitiser.There is no need for assessing the efficacy of the additive in the context of the renewal of the authorisation.