(2013). Effect of feeding different protein and threonine levels on performance, egg quality and histological structure of jejunum in laying hens. , 23(1), 139-158.

. "Effect of feeding different protein and threonine levels on performance, egg quality and histological structure of jejunum in laying hens". , 23, 1, 2013, 139-158.

(2013). 'Effect of feeding different protein and threonine levels on performance, egg quality and histological structure of jejunum in laying hens', , 23(1), pp. 139-158.

Effect of feeding different protein and threonine levels on performance, egg quality and histological structure of jejunum in laying hens. , 2013; 23(1): 139-158.