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Effect of bilberry and walnut leaves supplementation diet on jejunum morphology of laying hens: The basal diet served as a control, and different levels of herbal feed additives were supplemented to the basal diet as follows: 0.5% cranberry leaves (E1) and 1% walnut leaves (E2). Sce: simple columnar epithelium; lp: lamina propria; Cr: crypt; mm: muscularis mucosa. bb: brush border; H&E (Hematoxylin and Eosin) stain; (n = 10); n: number of replicates.
