經過評估，專家小組認為該添加劑對目標物種、消費者和環境是安全的。當該添加劑以1× 10⁹ CFU/kg全價飼料或5×10⁸ CFU/L飲用水使用時，有可能有效改善所有家禽種類和觀賞鳥類的產蛋或生長性能。部分原文報道如下：

 

　　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 the feed additive co nsisting of Lactobacillus acidophilus CECT 4529 (tradename: Lactobacillus acidophilus D2/CSL) when used as a zootechnical additive for all poultry species and categories and all ornamental birds. The additive is authorised for use in laying hens, chickens for fattening, cats and dogs. With this application, the company requested a new authorisation for use in feed and water for drinking for all poultry species and categories and ornamental birds. The Panel co ncluded that Lactobacillus acidophilus D2/CSL is presumed safe for the target species, co nsumers and the environment. As in previous opinions, the Panel also co ncluded that it is co nsidered an eye/skin irritant and a skin/respiratory sensitiser. Lactobacillus acidophilus D2/CSL when supplemented at 1 × 10 ⁹ CFU/kg complete feed or 5 × 10 ⁸ CFU/L water for drinking has the potential to be efficacious in to improving either laying or growing performance in all poultry species/categories and ornamental birds.