Eyng, C Effect of dietary supplementation with an ethanolic extract of propolis on broiler intestinal morphology and digestive enzyme activity. [electronic resource] - Journal of animal physiology and animal nutrition Apr 2014 - 393-401 p. digital Publication Type: Journal Article; Randomized Controlled Trial; Research Support, Non-U.S. Gov't ISSN: 1439-0396 Standard No.: 10.1111/jpn.12116 doi Subjects--Topical Terms: Animal Feed--analysisAnimal Nutritional Physiological PhenomenaAnimalsChickens--anatomy & histologyDiet--veterinaryDietary SupplementsEthanol--chemistryGastrointestinal Tract--enzymologyIntestines--anatomy & histologyMalePropolis--chemistry